| <!DOCTYPE html> |
| <html lang="zh-CN"> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width,initial-scale=1"> |
| <title> </title> |
| <meta name="generator" content="VuePress 1.8.2"> |
| <link rel="icon" href="/favicon.ico"> |
| <meta name="description" content=" "> |
| <meta name="Description" content="Apache IoTDB: Time Series Database for IoT"> |
| <meta name="Keywords" content="TSDB, time series, time series database, IoTDB, IoT database, IoT data management,时序数据库, 时间序列管理, IoTDB, 物联网数据库, 实时数据库, 物联网数据管理, 物联网数据"> |
| <meta name="baidu-site-verification" content="wfKETzB3OT"> |
| <meta name="google-site-verification" content="mZWAoRY0yj_HAr-s47zHCGHzx5Ju-RVm5wDbPnwQYFo"> |
| |
| <link rel="preload" href="/assets/css/0.styles.c79f5191.css" as="style"><link rel="preload" href="/assets/js/app.097a6368.js" as="script"><link rel="preload" href="/assets/js/3.96a076a8.js" as="script"><link rel="preload" href="/assets/js/4.a65360c5.js" as="script"><link rel="preload" href="/assets/js/468.a6ae17ae.js" as="script"><link rel="prefetch" href="/assets/js/10.39ee1d2a.js"><link rel="prefetch" href="/assets/js/100.d6dd2034.js"><link rel="prefetch" href="/assets/js/101.0e8f41a4.js"><link rel="prefetch" href="/assets/js/102.5a4a82cd.js"><link rel="prefetch" href="/assets/js/103.0e68f619.js"><link rel="prefetch" href="/assets/js/104.6bb8c242.js"><link rel="prefetch" href="/assets/js/105.8da6c8b1.js"><link rel="prefetch" href="/assets/js/106.1174986e.js"><link rel="prefetch" href="/assets/js/107.cb5d0eaf.js"><link rel="prefetch" href="/assets/js/108.0d4160a4.js"><link rel="prefetch" href="/assets/js/109.05dcc674.js"><link rel="prefetch" href="/assets/js/11.e6c21699.js"><link rel="prefetch" href="/assets/js/110.bc095ff3.js"><link rel="prefetch" href="/assets/js/111.0bbb389c.js"><link rel="prefetch" href="/assets/js/112.fa047e3c.js"><link rel="prefetch" href="/assets/js/113.487a5cf3.js"><link rel="prefetch" href="/assets/js/114.5a7d5fcc.js"><link rel="prefetch" href="/assets/js/115.3ba54112.js"><link rel="prefetch" href="/assets/js/116.f654cd09.js"><link rel="prefetch" href="/assets/js/117.ca614c6d.js"><link rel="prefetch" href="/assets/js/118.bb3550b8.js"><link rel="prefetch" href="/assets/js/119.abac83e8.js"><link rel="prefetch" href="/assets/js/12.26a10771.js"><link rel="prefetch" href="/assets/js/120.1c055e79.js"><link rel="prefetch" href="/assets/js/121.e951ecd4.js"><link rel="prefetch" href="/assets/js/122.a6dd628f.js"><link rel="prefetch" href="/assets/js/123.9204f9e2.js"><link rel="prefetch" href="/assets/js/124.45452249.js"><link rel="prefetch" href="/assets/js/125.4be07729.js"><link rel="prefetch" href="/assets/js/126.c2022ceb.js"><link rel="prefetch" href="/assets/js/127.5936224e.js"><link rel="prefetch" href="/assets/js/128.68bb75a3.js"><link rel="prefetch" href="/assets/js/129.9b3cd909.js"><link rel="prefetch" href="/assets/js/13.39738b97.js"><link rel="prefetch" href="/assets/js/130.d0d2408d.js"><link rel="prefetch" href="/assets/js/131.5b4145e8.js"><link rel="prefetch" href="/assets/js/132.c367ae6e.js"><link rel="prefetch" href="/assets/js/133.b71df6e7.js"><link rel="prefetch" href="/assets/js/134.d5449535.js"><link rel="prefetch" href="/assets/js/135.0d076e59.js"><link rel="prefetch" href="/assets/js/136.9a82bb8f.js"><link rel="prefetch" href="/assets/js/137.b192f464.js"><link rel="prefetch" href="/assets/js/138.585e784b.js"><link rel="prefetch" href="/assets/js/139.d7b8ccbd.js"><link rel="prefetch" href="/assets/js/14.a526cf0d.js"><link rel="prefetch" href="/assets/js/140.ba3f7a5c.js"><link rel="prefetch" href="/assets/js/141.e2e64913.js"><link rel="prefetch" href="/assets/js/142.7bb9af85.js"><link rel="prefetch" href="/assets/js/143.b61da33d.js"><link rel="prefetch" href="/assets/js/144.13109098.js"><link rel="prefetch" href="/assets/js/145.3d8342a6.js"><link rel="prefetch" href="/assets/js/146.f42307bd.js"><link rel="prefetch" href="/assets/js/147.f82e2b4d.js"><link rel="prefetch" href="/assets/js/148.99a5aeb4.js"><link rel="prefetch" href="/assets/js/149.3c9733aa.js"><link rel="prefetch" href="/assets/js/15.0e7120ba.js"><link rel="prefetch" href="/assets/js/150.4961feaa.js"><link rel="prefetch" href="/assets/js/151.24e6c706.js"><link rel="prefetch" href="/assets/js/152.fed296b3.js"><link rel="prefetch" href="/assets/js/153.a8d7d173.js"><link rel="prefetch" href="/assets/js/154.0f22d936.js"><link rel="prefetch" href="/assets/js/155.e55e0022.js"><link rel="prefetch" href="/assets/js/156.f26ae6f7.js"><link rel="prefetch" href="/assets/js/157.a78f2bcd.js"><link rel="prefetch" href="/assets/js/158.922e2030.js"><link rel="prefetch" href="/assets/js/159.ca3354be.js"><link rel="prefetch" href="/assets/js/16.22ec18ce.js"><link rel="prefetch" href="/assets/js/160.3d874eb0.js"><link rel="prefetch" href="/assets/js/161.01bf680a.js"><link rel="prefetch" href="/assets/js/162.fee63f32.js"><link rel="prefetch" href="/assets/js/163.fd23d88c.js"><link rel="prefetch" href="/assets/js/164.843216cd.js"><link rel="prefetch" href="/assets/js/165.9a509327.js"><link rel="prefetch" href="/assets/js/166.a139d99d.js"><link rel="prefetch" href="/assets/js/167.7908a939.js"><link rel="prefetch" href="/assets/js/168.92ef33e3.js"><link rel="prefetch" href="/assets/js/169.dc8c3cba.js"><link rel="prefetch" href="/assets/js/17.d134c9d8.js"><link rel="prefetch" href="/assets/js/170.06b99aab.js"><link rel="prefetch" href="/assets/js/171.042f81a7.js"><link rel="prefetch" href="/assets/js/172.0a478afb.js"><link rel="prefetch" href="/assets/js/173.01001529.js"><link rel="prefetch" href="/assets/js/174.4ff808be.js"><link rel="prefetch" href="/assets/js/175.ad315790.js"><link rel="prefetch" href="/assets/js/176.84d2033c.js"><link rel="prefetch" href="/assets/js/177.3b9f9c84.js"><link rel="prefetch" href="/assets/js/178.f8c65c66.js"><link rel="prefetch" href="/assets/js/179.86d2071a.js"><link rel="prefetch" href="/assets/js/18.e640e522.js"><link rel="prefetch" href="/assets/js/180.a138b784.js"><link rel="prefetch" href="/assets/js/181.e175b1c8.js"><link rel="prefetch" href="/assets/js/182.ccc8027c.js"><link rel="prefetch" href="/assets/js/183.1485fa8e.js"><link rel="prefetch" href="/assets/js/184.2f0ba776.js"><link rel="prefetch" href="/assets/js/185.5488f3c8.js"><link rel="prefetch" href="/assets/js/186.f511c35f.js"><link rel="prefetch" href="/assets/js/187.5add055b.js"><link rel="prefetch" href="/assets/js/188.b61258f5.js"><link rel="prefetch" href="/assets/js/189.cd61ef85.js"><link rel="prefetch" href="/assets/js/19.554dfad4.js"><link rel="prefetch" href="/assets/js/190.8cf8dd44.js"><link rel="prefetch" href="/assets/js/191.9ad95d92.js"><link rel="prefetch" href="/assets/js/192.059f1609.js"><link rel="prefetch" href="/assets/js/193.dff24d42.js"><link rel="prefetch" href="/assets/js/194.a23ae658.js"><link rel="prefetch" href="/assets/js/195.5678aaef.js"><link rel="prefetch" href="/assets/js/196.14bdaad4.js"><link rel="prefetch" href="/assets/js/197.0042e2ba.js"><link rel="prefetch" href="/assets/js/198.9cae154e.js"><link rel="prefetch" href="/assets/js/199.0c3223d5.js"><link rel="prefetch" href="/assets/js/20.4b3311fd.js"><link rel="prefetch" href="/assets/js/200.abf52631.js"><link rel="prefetch" href="/assets/js/201.30896297.js"><link rel="prefetch" href="/assets/js/202.e3dc4ec3.js"><link rel="prefetch" href="/assets/js/203.1555c647.js"><link rel="prefetch" href="/assets/js/204.8c1178ea.js"><link rel="prefetch" href="/assets/js/205.687b1ca4.js"><link rel="prefetch" href="/assets/js/206.53f53d50.js"><link rel="prefetch" href="/assets/js/207.1beb8ee6.js"><link rel="prefetch" href="/assets/js/208.57866bb1.js"><link rel="prefetch" href="/assets/js/209.cb874641.js"><link rel="prefetch" href="/assets/js/21.c90f33d7.js"><link rel="prefetch" href="/assets/js/210.756422a5.js"><link rel="prefetch" href="/assets/js/211.d8c8a1bc.js"><link rel="prefetch" href="/assets/js/212.2c81b33e.js"><link rel="prefetch" href="/assets/js/213.d7db8990.js"><link rel="prefetch" href="/assets/js/214.2d330672.js"><link rel="prefetch" href="/assets/js/215.c25f400c.js"><link rel="prefetch" href="/assets/js/216.0af456a4.js"><link rel="prefetch" href="/assets/js/217.b27c9d90.js"><link rel="prefetch" href="/assets/js/218.84093362.js"><link rel="prefetch" href="/assets/js/219.3eca4e1b.js"><link rel="prefetch" href="/assets/js/22.3accf996.js"><link rel="prefetch" href="/assets/js/220.622aebfa.js"><link rel="prefetch" href="/assets/js/221.320dff03.js"><link rel="prefetch" href="/assets/js/222.ece82df4.js"><link rel="prefetch" href="/assets/js/223.110d6b9b.js"><link rel="prefetch" href="/assets/js/224.ac831490.js"><link rel="prefetch" href="/assets/js/225.09db1be1.js"><link rel="prefetch" href="/assets/js/226.b4a6eadb.js"><link rel="prefetch" href="/assets/js/227.b720a041.js"><link rel="prefetch" href="/assets/js/228.0d88412b.js"><link rel="prefetch" href="/assets/js/229.6d55f230.js"><link rel="prefetch" href="/assets/js/23.8bd0de87.js"><link rel="prefetch" href="/assets/js/230.276e0251.js"><link rel="prefetch" href="/assets/js/231.237caa46.js"><link rel="prefetch" href="/assets/js/232.aab8b940.js"><link rel="prefetch" href="/assets/js/233.772d0446.js"><link rel="prefetch" href="/assets/js/234.893211e1.js"><link rel="prefetch" href="/assets/js/235.09d2167d.js"><link rel="prefetch" href="/assets/js/236.c3059b58.js"><link rel="prefetch" href="/assets/js/237.58026bbc.js"><link rel="prefetch" href="/assets/js/238.b04f07fd.js"><link rel="prefetch" href="/assets/js/239.57483628.js"><link rel="prefetch" href="/assets/js/24.55650a81.js"><link rel="prefetch" href="/assets/js/240.7a7d9e98.js"><link rel="prefetch" href="/assets/js/241.fd17d7cf.js"><link rel="prefetch" href="/assets/js/242.f25a0ad8.js"><link rel="prefetch" href="/assets/js/243.c6518b1b.js"><link rel="prefetch" href="/assets/js/244.10cfdedb.js"><link rel="prefetch" href="/assets/js/245.bd83aeca.js"><link rel="prefetch" href="/assets/js/246.7793bae6.js"><link rel="prefetch" href="/assets/js/247.1ae4b4e4.js"><link rel="prefetch" href="/assets/js/248.2bf11d95.js"><link rel="prefetch" href="/assets/js/249.fd9ae868.js"><link rel="prefetch" href="/assets/js/25.7bdf4cc4.js"><link rel="prefetch" href="/assets/js/250.e59d678a.js"><link rel="prefetch" href="/assets/js/251.3bc1e80d.js"><link rel="prefetch" href="/assets/js/252.b711692e.js"><link rel="prefetch" href="/assets/js/253.d87ada78.js"><link rel="prefetch" href="/assets/js/254.ec0c0d67.js"><link rel="prefetch" href="/assets/js/255.4ea02947.js"><link rel="prefetch" href="/assets/js/256.dc512d2a.js"><link rel="prefetch" href="/assets/js/257.a1ce9d72.js"><link rel="prefetch" href="/assets/js/258.70ca5acd.js"><link rel="prefetch" href="/assets/js/259.540f25d7.js"><link rel="prefetch" href="/assets/js/26.3df06ed6.js"><link rel="prefetch" href="/assets/js/260.f00c36ca.js"><link rel="prefetch" href="/assets/js/261.1c5fd439.js"><link rel="prefetch" href="/assets/js/262.0e7e8815.js"><link rel="prefetch" href="/assets/js/263.66bda648.js"><link rel="prefetch" href="/assets/js/264.af49db99.js"><link rel="prefetch" href="/assets/js/265.af687f9d.js"><link rel="prefetch" href="/assets/js/266.bccaee86.js"><link rel="prefetch" href="/assets/js/267.015dfed5.js"><link rel="prefetch" href="/assets/js/268.47d0524c.js"><link rel="prefetch" href="/assets/js/269.5f2f61a4.js"><link rel="prefetch" href="/assets/js/27.70f7dc1a.js"><link rel="prefetch" href="/assets/js/270.b790abdd.js"><link rel="prefetch" href="/assets/js/271.51585041.js"><link rel="prefetch" href="/assets/js/272.11179fd7.js"><link rel="prefetch" href="/assets/js/273.56c20a14.js"><link rel="prefetch" href="/assets/js/274.28fa465b.js"><link rel="prefetch" href="/assets/js/275.2112843e.js"><link rel="prefetch" href="/assets/js/276.bb77cf7a.js"><link rel="prefetch" href="/assets/js/277.ca8fea07.js"><link rel="prefetch" href="/assets/js/278.a86fb436.js"><link rel="prefetch" href="/assets/js/279.d84dba71.js"><link rel="prefetch" href="/assets/js/28.9533e2e5.js"><link rel="prefetch" href="/assets/js/280.35c6ca13.js"><link rel="prefetch" href="/assets/js/281.4e1dadee.js"><link rel="prefetch" href="/assets/js/282.2b1d3aa6.js"><link rel="prefetch" href="/assets/js/283.f8eacead.js"><link rel="prefetch" href="/assets/js/284.253a3fa5.js"><link rel="prefetch" href="/assets/js/285.3820230d.js"><link rel="prefetch" href="/assets/js/286.40a69b8c.js"><link rel="prefetch" href="/assets/js/287.9d0ef290.js"><link rel="prefetch" href="/assets/js/288.9736e9de.js"><link rel="prefetch" href="/assets/js/289.89bf0c61.js"><link rel="prefetch" href="/assets/js/29.177d018a.js"><link rel="prefetch" href="/assets/js/290.0c140c4b.js"><link rel="prefetch" href="/assets/js/291.bb1fd8ca.js"><link rel="prefetch" href="/assets/js/292.30954e59.js"><link rel="prefetch" href="/assets/js/293.e00a56ec.js"><link rel="prefetch" href="/assets/js/294.afa5c2ee.js"><link rel="prefetch" href="/assets/js/295.1917bfde.js"><link rel="prefetch" href="/assets/js/296.d6fa961c.js"><link rel="prefetch" href="/assets/js/297.e617a64f.js"><link rel="prefetch" href="/assets/js/298.2800c1af.js"><link rel="prefetch" href="/assets/js/299.073f781d.js"><link rel="prefetch" href="/assets/js/30.83098547.js"><link rel="prefetch" href="/assets/js/300.bdfdc245.js"><link rel="prefetch" href="/assets/js/301.fa3fd2b2.js"><link rel="prefetch" href="/assets/js/302.5eabecb4.js"><link rel="prefetch" href="/assets/js/303.666a5cb2.js"><link rel="prefetch" href="/assets/js/304.f0dbda99.js"><link rel="prefetch" href="/assets/js/305.29e13354.js"><link rel="prefetch" href="/assets/js/306.7d4fb77e.js"><link rel="prefetch" href="/assets/js/307.80b3417a.js"><link rel="prefetch" href="/assets/js/308.8862b104.js"><link rel="prefetch" href="/assets/js/309.26d4c2f8.js"><link rel="prefetch" href="/assets/js/31.e244252e.js"><link rel="prefetch" href="/assets/js/310.40730e5d.js"><link rel="prefetch" href="/assets/js/311.e9d5a6d5.js"><link rel="prefetch" href="/assets/js/312.1ba85653.js"><link rel="prefetch" href="/assets/js/313.ff0db688.js"><link rel="prefetch" href="/assets/js/314.534a4be1.js"><link rel="prefetch" href="/assets/js/315.005fa4fe.js"><link rel="prefetch" href="/assets/js/316.b64b7edf.js"><link rel="prefetch" href="/assets/js/317.2d889197.js"><link rel="prefetch" href="/assets/js/318.6e795d26.js"><link rel="prefetch" href="/assets/js/319.ac55458d.js"><link rel="prefetch" href="/assets/js/32.d905c2cd.js"><link rel="prefetch" href="/assets/js/320.c2d85a13.js"><link rel="prefetch" href="/assets/js/321.b31a1512.js"><link rel="prefetch" href="/assets/js/322.62e45bf2.js"><link rel="prefetch" href="/assets/js/323.281ccc84.js"><link rel="prefetch" href="/assets/js/324.231f3e4a.js"><link rel="prefetch" href="/assets/js/325.970f6d6f.js"><link rel="prefetch" href="/assets/js/326.1d8aec6d.js"><link rel="prefetch" href="/assets/js/327.7bbcead6.js"><link rel="prefetch" href="/assets/js/328.71d993e9.js"><link rel="prefetch" href="/assets/js/329.c2bb0c0a.js"><link rel="prefetch" href="/assets/js/33.cd506774.js"><link rel="prefetch" href="/assets/js/330.4d907148.js"><link rel="prefetch" href="/assets/js/331.3fa24073.js"><link rel="prefetch" href="/assets/js/332.d5a5b3aa.js"><link rel="prefetch" href="/assets/js/333.b48bd3ca.js"><link rel="prefetch" href="/assets/js/334.5c356a1a.js"><link rel="prefetch" href="/assets/js/335.5cb79e4c.js"><link rel="prefetch" href="/assets/js/336.e11f33d6.js"><link rel="prefetch" href="/assets/js/337.f446283e.js"><link rel="prefetch" href="/assets/js/338.b6028fa7.js"><link rel="prefetch" href="/assets/js/339.051dadf7.js"><link rel="prefetch" href="/assets/js/34.fec188a0.js"><link rel="prefetch" href="/assets/js/340.26cd4411.js"><link rel="prefetch" href="/assets/js/341.b0268f4e.js"><link rel="prefetch" href="/assets/js/342.0b2a481b.js"><link rel="prefetch" href="/assets/js/343.e3e7d460.js"><link rel="prefetch" href="/assets/js/344.5646a76f.js"><link rel="prefetch" href="/assets/js/345.580b30c8.js"><link rel="prefetch" href="/assets/js/346.413f2f25.js"><link rel="prefetch" href="/assets/js/347.5abc29de.js"><link rel="prefetch" href="/assets/js/348.16d3e04e.js"><link rel="prefetch" href="/assets/js/349.35ce0487.js"><link rel="prefetch" href="/assets/js/35.fc74cff2.js"><link rel="prefetch" href="/assets/js/350.b5ea1eaa.js"><link rel="prefetch" href="/assets/js/351.e2e8f56e.js"><link rel="prefetch" href="/assets/js/352.8c16b8ca.js"><link rel="prefetch" href="/assets/js/353.668c542e.js"><link rel="prefetch" href="/assets/js/354.6a39d33b.js"><link rel="prefetch" href="/assets/js/355.b2cbdd6f.js"><link rel="prefetch" href="/assets/js/356.e74430ca.js"><link rel="prefetch" href="/assets/js/357.aa0cdf5a.js"><link rel="prefetch" href="/assets/js/358.a57ed560.js"><link rel="prefetch" href="/assets/js/359.aeb81810.js"><link rel="prefetch" href="/assets/js/36.fbd54d31.js"><link rel="prefetch" href="/assets/js/360.207afa8e.js"><link rel="prefetch" href="/assets/js/361.79434f70.js"><link rel="prefetch" href="/assets/js/362.ded22ed8.js"><link rel="prefetch" href="/assets/js/363.90eec240.js"><link rel="prefetch" href="/assets/js/364.1fcf25e1.js"><link rel="prefetch" href="/assets/js/365.4aeceb03.js"><link rel="prefetch" href="/assets/js/366.40fda78d.js"><link rel="prefetch" href="/assets/js/367.b85a36a6.js"><link rel="prefetch" href="/assets/js/368.a314d2a9.js"><link rel="prefetch" href="/assets/js/369.04a3e9d0.js"><link rel="prefetch" href="/assets/js/37.3b25bfb9.js"><link rel="prefetch" href="/assets/js/370.d255386a.js"><link rel="prefetch" href="/assets/js/371.e4807eb2.js"><link rel="prefetch" href="/assets/js/372.345a366f.js"><link rel="prefetch" href="/assets/js/373.3bd2835b.js"><link rel="prefetch" href="/assets/js/374.5994dba6.js"><link rel="prefetch" href="/assets/js/375.9738f205.js"><link rel="prefetch" href="/assets/js/376.30ce1051.js"><link rel="prefetch" href="/assets/js/377.ca49943e.js"><link rel="prefetch" href="/assets/js/378.fc5a69bc.js"><link rel="prefetch" href="/assets/js/379.74d1a937.js"><link rel="prefetch" href="/assets/js/38.9642b95b.js"><link rel="prefetch" href="/assets/js/380.7a6a6236.js"><link rel="prefetch" href="/assets/js/381.c0a999f0.js"><link rel="prefetch" href="/assets/js/382.85d55ec3.js"><link rel="prefetch" href="/assets/js/383.5117b408.js"><link rel="prefetch" href="/assets/js/384.c2682b6e.js"><link rel="prefetch" href="/assets/js/385.a5c0c3bc.js"><link rel="prefetch" href="/assets/js/386.5495d1da.js"><link rel="prefetch" href="/assets/js/387.96299e43.js"><link rel="prefetch" href="/assets/js/388.c261d0e3.js"><link rel="prefetch" href="/assets/js/389.8bd42316.js"><link rel="prefetch" href="/assets/js/39.22df932f.js"><link rel="prefetch" href="/assets/js/390.6f98fb77.js"><link rel="prefetch" href="/assets/js/391.404200cc.js"><link rel="prefetch" href="/assets/js/392.7ff032ec.js"><link rel="prefetch" href="/assets/js/393.4f5fa200.js"><link rel="prefetch" href="/assets/js/394.5806a79b.js"><link rel="prefetch" href="/assets/js/395.d24a6239.js"><link rel="prefetch" href="/assets/js/396.ba3a1db1.js"><link rel="prefetch" href="/assets/js/397.89c339f6.js"><link rel="prefetch" href="/assets/js/398.49e1b169.js"><link rel="prefetch" href="/assets/js/399.e36afba9.js"><link rel="prefetch" href="/assets/js/40.1f714478.js"><link rel="prefetch" href="/assets/js/400.72479131.js"><link rel="prefetch" href="/assets/js/401.9817cd9f.js"><link rel="prefetch" href="/assets/js/402.481d7612.js"><link rel="prefetch" href="/assets/js/403.f83e3869.js"><link rel="prefetch" href="/assets/js/404.eee6c8b8.js"><link rel="prefetch" href="/assets/js/405.bcf5c778.js"><link rel="prefetch" href="/assets/js/406.4ab7d41a.js"><link rel="prefetch" href="/assets/js/407.5e6e5a79.js"><link rel="prefetch" href="/assets/js/408.3cc64a41.js"><link rel="prefetch" href="/assets/js/409.a8f5df5b.js"><link rel="prefetch" href="/assets/js/41.d4ff3796.js"><link rel="prefetch" href="/assets/js/410.f632ac4d.js"><link rel="prefetch" href="/assets/js/411.979d30b7.js"><link rel="prefetch" href="/assets/js/412.d515d177.js"><link rel="prefetch" href="/assets/js/413.93619e77.js"><link rel="prefetch" href="/assets/js/414.80f2fb16.js"><link rel="prefetch" href="/assets/js/415.ffc51b36.js"><link rel="prefetch" href="/assets/js/416.989fd09d.js"><link rel="prefetch" href="/assets/js/417.104307b9.js"><link rel="prefetch" href="/assets/js/418.c35d49c1.js"><link rel="prefetch" href="/assets/js/419.4d2f1a69.js"><link rel="prefetch" href="/assets/js/42.3ddf602f.js"><link rel="prefetch" href="/assets/js/420.13983cc7.js"><link rel="prefetch" href="/assets/js/421.3a34daf6.js"><link rel="prefetch" href="/assets/js/422.ce92e8a5.js"><link rel="prefetch" href="/assets/js/423.70c1a4f2.js"><link rel="prefetch" href="/assets/js/424.56cc9221.js"><link rel="prefetch" href="/assets/js/425.a8e2158e.js"><link rel="prefetch" href="/assets/js/426.6e2ed484.js"><link rel="prefetch" href="/assets/js/427.3fe8acbe.js"><link rel="prefetch" href="/assets/js/428.6b2ceb4e.js"><link rel="prefetch" href="/assets/js/429.26985e2c.js"><link rel="prefetch" href="/assets/js/43.90ce3a73.js"><link rel="prefetch" href="/assets/js/430.7d288508.js"><link rel="prefetch" href="/assets/js/431.f08a1050.js"><link rel="prefetch" href="/assets/js/432.34e4b60c.js"><link rel="prefetch" href="/assets/js/433.da60bbc7.js"><link rel="prefetch" href="/assets/js/434.46f57b03.js"><link rel="prefetch" href="/assets/js/435.96b28647.js"><link rel="prefetch" href="/assets/js/436.b8601f77.js"><link rel="prefetch" href="/assets/js/437.3f25033c.js"><link rel="prefetch" href="/assets/js/438.5471b093.js"><link rel="prefetch" href="/assets/js/439.c0fad310.js"><link rel="prefetch" href="/assets/js/44.0e2c101c.js"><link rel="prefetch" href="/assets/js/440.3d2cb7f7.js"><link rel="prefetch" href="/assets/js/441.ec8e7b96.js"><link rel="prefetch" href="/assets/js/442.3dc711cd.js"><link rel="prefetch" href="/assets/js/443.2bacd48a.js"><link rel="prefetch" href="/assets/js/444.22b91a81.js"><link rel="prefetch" href="/assets/js/445.16b82856.js"><link rel="prefetch" href="/assets/js/446.82569b11.js"><link rel="prefetch" href="/assets/js/447.1f76f29e.js"><link rel="prefetch" href="/assets/js/448.a064247d.js"><link rel="prefetch" href="/assets/js/449.7daf2ce0.js"><link rel="prefetch" href="/assets/js/45.906f0670.js"><link rel="prefetch" href="/assets/js/450.0bb2dfa6.js"><link rel="prefetch" href="/assets/js/451.b69d91ab.js"><link rel="prefetch" href="/assets/js/452.32ad2cb2.js"><link rel="prefetch" href="/assets/js/453.63758a27.js"><link rel="prefetch" href="/assets/js/454.1d977737.js"><link rel="prefetch" href="/assets/js/455.7ad37776.js"><link rel="prefetch" href="/assets/js/456.28197a33.js"><link rel="prefetch" href="/assets/js/457.11f3d059.js"><link rel="prefetch" href="/assets/js/458.13e61f9e.js"><link rel="prefetch" href="/assets/js/459.f6b29f9e.js"><link rel="prefetch" href="/assets/js/46.1d25bb03.js"><link rel="prefetch" href="/assets/js/460.856f879b.js"><link rel="prefetch" href="/assets/js/461.4bad18b7.js"><link rel="prefetch" href="/assets/js/462.0be13639.js"><link rel="prefetch" href="/assets/js/463.b367f36d.js"><link rel="prefetch" href="/assets/js/464.e6bf89d4.js"><link rel="prefetch" href="/assets/js/465.b301a17a.js"><link rel="prefetch" href="/assets/js/466.feaebeed.js"><link rel="prefetch" href="/assets/js/467.bff8a8b9.js"><link rel="prefetch" href="/assets/js/469.7825f85b.js"><link rel="prefetch" href="/assets/js/47.b4abc3a9.js"><link rel="prefetch" href="/assets/js/470.c818581e.js"><link rel="prefetch" href="/assets/js/471.d96d2806.js"><link rel="prefetch" href="/assets/js/472.8afaca4d.js"><link rel="prefetch" href="/assets/js/473.aa0721a8.js"><link rel="prefetch" href="/assets/js/474.7a0be084.js"><link rel="prefetch" href="/assets/js/475.385a1bc9.js"><link rel="prefetch" href="/assets/js/476.27fa3e2e.js"><link rel="prefetch" href="/assets/js/477.10caf074.js"><link rel="prefetch" href="/assets/js/478.aa8e3e6a.js"><link rel="prefetch" href="/assets/js/479.75c844e2.js"><link rel="prefetch" href="/assets/js/48.1513b215.js"><link rel="prefetch" href="/assets/js/480.539c48b3.js"><link rel="prefetch" href="/assets/js/481.6da911d2.js"><link rel="prefetch" href="/assets/js/482.3c1dd9be.js"><link rel="prefetch" href="/assets/js/483.1deb6852.js"><link rel="prefetch" href="/assets/js/484.b72e1f03.js"><link rel="prefetch" href="/assets/js/485.114d531c.js"><link rel="prefetch" href="/assets/js/486.6ccf3db1.js"><link rel="prefetch" href="/assets/js/487.933a442c.js"><link rel="prefetch" href="/assets/js/488.2109e298.js"><link rel="prefetch" href="/assets/js/489.8ac86591.js"><link rel="prefetch" href="/assets/js/49.f041ca9b.js"><link rel="prefetch" href="/assets/js/490.0ff543af.js"><link rel="prefetch" href="/assets/js/491.a45144df.js"><link rel="prefetch" href="/assets/js/492.ade6ad10.js"><link rel="prefetch" href="/assets/js/493.f1e180ed.js"><link rel="prefetch" href="/assets/js/494.b777ea11.js"><link rel="prefetch" href="/assets/js/495.7ccd4d6c.js"><link rel="prefetch" href="/assets/js/496.5664496c.js"><link rel="prefetch" href="/assets/js/497.99dad08e.js"><link rel="prefetch" href="/assets/js/498.f5c74333.js"><link rel="prefetch" href="/assets/js/499.d5f88f30.js"><link rel="prefetch" href="/assets/js/5.eace4687.js"><link rel="prefetch" href="/assets/js/50.3bc020e8.js"><link rel="prefetch" href="/assets/js/500.b35a6502.js"><link rel="prefetch" href="/assets/js/501.0fcad134.js"><link rel="prefetch" href="/assets/js/502.a989cfdb.js"><link rel="prefetch" href="/assets/js/503.db001973.js"><link rel="prefetch" href="/assets/js/504.139fa62f.js"><link rel="prefetch" href="/assets/js/505.4abfe2d5.js"><link rel="prefetch" href="/assets/js/506.da4048b0.js"><link rel="prefetch" href="/assets/js/507.0a50719d.js"><link rel="prefetch" href="/assets/js/508.9967a5a5.js"><link rel="prefetch" href="/assets/js/509.801efe92.js"><link rel="prefetch" href="/assets/js/51.d15e6446.js"><link rel="prefetch" href="/assets/js/510.d7ee5ecf.js"><link rel="prefetch" href="/assets/js/511.a7cdd775.js"><link rel="prefetch" href="/assets/js/512.8fd65a58.js"><link rel="prefetch" href="/assets/js/513.ad26bf3f.js"><link rel="prefetch" href="/assets/js/514.b8e59387.js"><link rel="prefetch" href="/assets/js/515.1a1d200a.js"><link rel="prefetch" href="/assets/js/516.3fb2652d.js"><link rel="prefetch" href="/assets/js/517.2ad48873.js"><link rel="prefetch" href="/assets/js/518.474749bd.js"><link rel="prefetch" href="/assets/js/519.2686ef3b.js"><link rel="prefetch" href="/assets/js/52.b00654a7.js"><link rel="prefetch" href="/assets/js/520.7e1c0790.js"><link rel="prefetch" href="/assets/js/521.574b5786.js"><link rel="prefetch" href="/assets/js/522.9eaac7de.js"><link rel="prefetch" href="/assets/js/523.961c281a.js"><link rel="prefetch" href="/assets/js/524.a35beb6e.js"><link rel="prefetch" href="/assets/js/525.d58f5ee6.js"><link rel="prefetch" href="/assets/js/526.7913d080.js"><link rel="prefetch" href="/assets/js/527.f32a843c.js"><link rel="prefetch" href="/assets/js/528.54b63c66.js"><link rel="prefetch" href="/assets/js/529.0d4ce04b.js"><link rel="prefetch" href="/assets/js/53.355eef4b.js"><link rel="prefetch" href="/assets/js/530.fb44649a.js"><link rel="prefetch" href="/assets/js/531.ad14b3f1.js"><link rel="prefetch" href="/assets/js/532.f9a56b87.js"><link rel="prefetch" href="/assets/js/533.ead08a09.js"><link rel="prefetch" href="/assets/js/534.f39660f7.js"><link rel="prefetch" href="/assets/js/535.9427b954.js"><link rel="prefetch" href="/assets/js/536.ab642aa5.js"><link rel="prefetch" href="/assets/js/537.6b9d4947.js"><link rel="prefetch" href="/assets/js/538.24ac4c46.js"><link rel="prefetch" href="/assets/js/539.534fb8b3.js"><link rel="prefetch" href="/assets/js/54.1272569c.js"><link rel="prefetch" href="/assets/js/540.df7519eb.js"><link rel="prefetch" href="/assets/js/541.26284e92.js"><link rel="prefetch" href="/assets/js/542.4fe7a8e4.js"><link rel="prefetch" href="/assets/js/543.164c4ada.js"><link rel="prefetch" href="/assets/js/544.4328c991.js"><link rel="prefetch" href="/assets/js/545.4b6ed6aa.js"><link rel="prefetch" href="/assets/js/546.94f5de81.js"><link rel="prefetch" href="/assets/js/547.4fdad3f7.js"><link rel="prefetch" href="/assets/js/548.52710406.js"><link rel="prefetch" href="/assets/js/549.a4bd9eb5.js"><link rel="prefetch" href="/assets/js/55.cad6aefd.js"><link rel="prefetch" href="/assets/js/550.d447310c.js"><link rel="prefetch" href="/assets/js/551.a9d7230d.js"><link rel="prefetch" href="/assets/js/552.cfbb9201.js"><link rel="prefetch" href="/assets/js/553.4f157b97.js"><link rel="prefetch" href="/assets/js/554.0743258e.js"><link rel="prefetch" href="/assets/js/555.05225cb1.js"><link rel="prefetch" href="/assets/js/556.85788768.js"><link rel="prefetch" href="/assets/js/557.b3968df8.js"><link rel="prefetch" href="/assets/js/558.a2d404a7.js"><link rel="prefetch" href="/assets/js/559.ed5e60d7.js"><link rel="prefetch" href="/assets/js/56.bb889c97.js"><link rel="prefetch" href="/assets/js/560.813a1a91.js"><link rel="prefetch" href="/assets/js/561.41dac228.js"><link rel="prefetch" href="/assets/js/562.c605ffae.js"><link rel="prefetch" href="/assets/js/563.52d710f5.js"><link rel="prefetch" href="/assets/js/564.93fcab73.js"><link rel="prefetch" href="/assets/js/565.2eca62d6.js"><link rel="prefetch" href="/assets/js/566.9968bbbe.js"><link rel="prefetch" href="/assets/js/567.d237ef76.js"><link rel="prefetch" href="/assets/js/568.94423a78.js"><link rel="prefetch" href="/assets/js/569.ce6d29a6.js"><link rel="prefetch" href="/assets/js/57.0e1aed8c.js"><link rel="prefetch" href="/assets/js/570.7e0c7f53.js"><link rel="prefetch" href="/assets/js/571.1dd12ef7.js"><link rel="prefetch" href="/assets/js/572.1bfb389b.js"><link rel="prefetch" href="/assets/js/573.47c5d584.js"><link rel="prefetch" href="/assets/js/574.ca9a4f70.js"><link rel="prefetch" href="/assets/js/575.e72955dc.js"><link rel="prefetch" href="/assets/js/576.9234f9a6.js"><link rel="prefetch" href="/assets/js/577.a9756656.js"><link rel="prefetch" href="/assets/js/578.a761f44e.js"><link rel="prefetch" href="/assets/js/579.0a6c9e3f.js"><link rel="prefetch" href="/assets/js/58.1c4000d9.js"><link rel="prefetch" href="/assets/js/580.bed3a4db.js"><link rel="prefetch" href="/assets/js/581.ac1f9cac.js"><link rel="prefetch" href="/assets/js/582.494a2d92.js"><link rel="prefetch" href="/assets/js/583.c01ccfaa.js"><link rel="prefetch" href="/assets/js/584.980dd382.js"><link rel="prefetch" href="/assets/js/585.491eb48b.js"><link rel="prefetch" href="/assets/js/586.ab5ce50c.js"><link rel="prefetch" href="/assets/js/587.d0ec1527.js"><link rel="prefetch" href="/assets/js/588.cd4508e4.js"><link rel="prefetch" href="/assets/js/589.38ef0fc3.js"><link rel="prefetch" href="/assets/js/59.5010eb7b.js"><link rel="prefetch" href="/assets/js/590.9f69249e.js"><link rel="prefetch" href="/assets/js/591.934a3d04.js"><link rel="prefetch" href="/assets/js/592.6ea4305c.js"><link rel="prefetch" href="/assets/js/593.e1889c92.js"><link rel="prefetch" href="/assets/js/594.a1a833a7.js"><link rel="prefetch" href="/assets/js/595.f0d9bc6f.js"><link rel="prefetch" href="/assets/js/596.c24c8026.js"><link rel="prefetch" href="/assets/js/597.ae4d47a9.js"><link rel="prefetch" href="/assets/js/598.cec78e4d.js"><link rel="prefetch" href="/assets/js/599.52b86a34.js"><link rel="prefetch" href="/assets/js/6.008dd0d6.js"><link rel="prefetch" href="/assets/js/60.e3e06038.js"><link rel="prefetch" href="/assets/js/600.979d8dda.js"><link rel="prefetch" href="/assets/js/601.229a51dd.js"><link rel="prefetch" href="/assets/js/602.12f6a9a9.js"><link rel="prefetch" href="/assets/js/603.cfe5f402.js"><link rel="prefetch" href="/assets/js/604.aca6a74c.js"><link rel="prefetch" href="/assets/js/605.b1adcf8f.js"><link rel="prefetch" href="/assets/js/606.f29ff83e.js"><link rel="prefetch" href="/assets/js/607.4ed57b58.js"><link rel="prefetch" href="/assets/js/608.ceda733e.js"><link rel="prefetch" href="/assets/js/609.a31e652e.js"><link rel="prefetch" href="/assets/js/61.fe548a4b.js"><link rel="prefetch" href="/assets/js/610.97edc5b7.js"><link rel="prefetch" href="/assets/js/611.aadb500d.js"><link rel="prefetch" href="/assets/js/612.192e93a5.js"><link rel="prefetch" href="/assets/js/613.454523c0.js"><link rel="prefetch" href="/assets/js/614.f243cd21.js"><link rel="prefetch" href="/assets/js/615.c3fa6c17.js"><link rel="prefetch" href="/assets/js/616.4aaa6c8a.js"><link rel="prefetch" href="/assets/js/617.eb95de76.js"><link rel="prefetch" href="/assets/js/618.4afea132.js"><link rel="prefetch" href="/assets/js/619.3a71c6f1.js"><link rel="prefetch" href="/assets/js/62.4b8d1565.js"><link rel="prefetch" href="/assets/js/620.c7d354b1.js"><link rel="prefetch" href="/assets/js/621.c821654f.js"><link rel="prefetch" href="/assets/js/622.b4ee183e.js"><link rel="prefetch" href="/assets/js/623.9e0f6c89.js"><link rel="prefetch" href="/assets/js/624.d24e0739.js"><link rel="prefetch" href="/assets/js/625.a31335e9.js"><link rel="prefetch" href="/assets/js/626.07155aa0.js"><link rel="prefetch" href="/assets/js/627.0b6299e9.js"><link rel="prefetch" href="/assets/js/628.ea2906c8.js"><link rel="prefetch" href="/assets/js/629.fd831995.js"><link rel="prefetch" href="/assets/js/63.88c4f28c.js"><link rel="prefetch" href="/assets/js/630.5b2a36cf.js"><link rel="prefetch" href="/assets/js/631.224beb27.js"><link rel="prefetch" href="/assets/js/632.5ddc2fa3.js"><link rel="prefetch" href="/assets/js/633.aa203f51.js"><link rel="prefetch" href="/assets/js/634.28cf048d.js"><link rel="prefetch" href="/assets/js/635.6380cdb9.js"><link rel="prefetch" href="/assets/js/636.ac56e604.js"><link rel="prefetch" href="/assets/js/637.89c0cf27.js"><link rel="prefetch" href="/assets/js/638.d01bc404.js"><link rel="prefetch" href="/assets/js/639.eae888db.js"><link rel="prefetch" href="/assets/js/64.9a6df426.js"><link rel="prefetch" href="/assets/js/640.c6e179a3.js"><link rel="prefetch" href="/assets/js/641.f15ab255.js"><link rel="prefetch" href="/assets/js/642.d9fd4137.js"><link rel="prefetch" href="/assets/js/643.6f4094d1.js"><link rel="prefetch" href="/assets/js/644.9aa8f226.js"><link rel="prefetch" href="/assets/js/645.ff9da1bc.js"><link rel="prefetch" href="/assets/js/646.4000991d.js"><link rel="prefetch" href="/assets/js/647.27528477.js"><link rel="prefetch" href="/assets/js/648.c75d0095.js"><link rel="prefetch" href="/assets/js/649.611812d7.js"><link rel="prefetch" href="/assets/js/65.cc6aa746.js"><link rel="prefetch" href="/assets/js/66.56ca94e9.js"><link rel="prefetch" href="/assets/js/67.dace53ae.js"><link rel="prefetch" href="/assets/js/68.5f80c5d7.js"><link rel="prefetch" href="/assets/js/69.6928ab09.js"><link rel="prefetch" href="/assets/js/7.080f75db.js"><link rel="prefetch" href="/assets/js/70.957925ef.js"><link rel="prefetch" href="/assets/js/71.bd670fb0.js"><link rel="prefetch" href="/assets/js/72.638bf82c.js"><link rel="prefetch" href="/assets/js/73.bf3f33f7.js"><link rel="prefetch" href="/assets/js/74.158db85b.js"><link rel="prefetch" href="/assets/js/75.4df0ecfb.js"><link rel="prefetch" href="/assets/js/76.cd33a073.js"><link rel="prefetch" href="/assets/js/77.b5eb153f.js"><link rel="prefetch" href="/assets/js/78.9f744f74.js"><link rel="prefetch" href="/assets/js/79.e87628ce.js"><link rel="prefetch" href="/assets/js/8.d214e90e.js"><link rel="prefetch" href="/assets/js/80.6745e0dc.js"><link rel="prefetch" href="/assets/js/81.8d0b22c6.js"><link rel="prefetch" href="/assets/js/82.d0aed17d.js"><link rel="prefetch" href="/assets/js/83.2e948e49.js"><link rel="prefetch" href="/assets/js/84.ca94d989.js"><link rel="prefetch" href="/assets/js/85.4d728e57.js"><link rel="prefetch" href="/assets/js/86.b7594471.js"><link rel="prefetch" href="/assets/js/87.e8e8c889.js"><link rel="prefetch" href="/assets/js/88.c5908a0d.js"><link rel="prefetch" href="/assets/js/89.6db4e22b.js"><link rel="prefetch" href="/assets/js/9.611482a9.js"><link rel="prefetch" href="/assets/js/90.7493f881.js"><link rel="prefetch" href="/assets/js/91.bab34c94.js"><link rel="prefetch" href="/assets/js/92.c1c78a83.js"><link rel="prefetch" href="/assets/js/93.e8819b8d.js"><link rel="prefetch" href="/assets/js/94.b7752782.js"><link rel="prefetch" href="/assets/js/95.8cae0dd5.js"><link rel="prefetch" href="/assets/js/96.b700b11e.js"><link rel="prefetch" href="/assets/js/97.a69b3f7d.js"><link rel="prefetch" href="/assets/js/98.a6874d17.js"><link rel="prefetch" href="/assets/js/99.90250e9b.js"><link rel="prefetch" href="/assets/js/vendors~docsearch.1288603f.js"> |
| <link rel="stylesheet" href="/assets/css/0.styles.c79f5191.css"> |
| </head> |
| <body> |
| <div id="app" data-server-rendered="true"><div class="theme-container"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/zh/" class="home-link router-link-active"><img src="/img/logo.png" alt=" " class="logo"></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">文档</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/UserGuide/Master/QuickStart/QuickStart.html" class="nav-link">In progress</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.12.x/QuickStart/QuickStart.html" class="nav-link">V0.12.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.11.x/Get Started/QuickStart.html" class="nav-link">V0.11.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.10.x/Get Started/QuickStart.html" class="nav-link">V0.10.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.9.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.9.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.8.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.8.x</a></li></ul></div></div><div class="nav-item"><a href="/zh/SystemDesign/Architecture/Architecture.html" class="nav-link">系统设计</a></div><div class="nav-item"><a href="/zh/Download/" class="nav-link">下载</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">社区</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="https://cwiki.apache.org/confluence/display/iotdb" class="nav-link external"> |
| Wiki |
| <!----></a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Project Committers.html" class="nav-link">开发人员</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Powered By.html" class="nav-link">技术支持</a></li><li class="dropdown-item"><!----> <a href="/Community/Materials.html" class="nav-link">活动与报告</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Feedback.html" class="nav-link">交流与反馈</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">开发</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/Development/VoteRelease.html" class="nav-link">如何投票</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/HowToCommit.html" class="nav-link">如何提交代码</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/Committer.html" class="nav-link">成为Committer</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/ContributeGuide.html" class="nav-link">项目开发指南</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/format-changelist.html" class="nav-link">TsFile的更改列表</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/rpc-changelist.html" class="nav-link">RPC变更清单</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">ASF</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="http://www.apache.org/" class="nav-link external"> |
| 基金会 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/licenses/" class="nav-link external"> |
| 许可证 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/security/" class="nav-link external"> |
| 安全 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/sponsorship.html" class="nav-link external"> |
| 赞助 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/thanks.html" class="nav-link external"> |
| 致谢 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/events/current-event" class="nav-link external"> |
| 活动 |
| <!----></a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">语言</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/UserGuide/V0.10.x/Server/Config Manual.html" class="nav-link">English</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.10.x/Server/Config Manual.html" class="nav-link">简体中文</a></li></ul></div></div> <a href="https://github.com/apache/iotdb.git" target="_blank" rel="noopener noreferrer" class="repo-link"> |
| gitHub |
| <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><nav class="nav-links"><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">文档</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/UserGuide/Master/QuickStart/QuickStart.html" class="nav-link">In progress</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.12.x/QuickStart/QuickStart.html" class="nav-link">V0.12.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.11.x/Get Started/QuickStart.html" class="nav-link">V0.11.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.10.x/Get Started/QuickStart.html" class="nav-link">V0.10.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.9.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.9.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.8.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.8.x</a></li></ul></div></div><div class="nav-item"><a href="/zh/SystemDesign/Architecture/Architecture.html" class="nav-link">系统设计</a></div><div class="nav-item"><a href="/zh/Download/" class="nav-link">下载</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">社区</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="https://cwiki.apache.org/confluence/display/iotdb" class="nav-link external"> |
| Wiki |
| <!----></a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Project Committers.html" class="nav-link">开发人员</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Powered By.html" class="nav-link">技术支持</a></li><li class="dropdown-item"><!----> <a href="/Community/Materials.html" class="nav-link">活动与报告</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Feedback.html" class="nav-link">交流与反馈</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">开发</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/Development/VoteRelease.html" class="nav-link">如何投票</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/HowToCommit.html" class="nav-link">如何提交代码</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/Committer.html" class="nav-link">成为Committer</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/ContributeGuide.html" class="nav-link">项目开发指南</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/format-changelist.html" class="nav-link">TsFile的更改列表</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/rpc-changelist.html" class="nav-link">RPC变更清单</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">ASF</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="http://www.apache.org/" class="nav-link external"> |
| 基金会 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/licenses/" class="nav-link external"> |
| 许可证 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/security/" class="nav-link external"> |
| 安全 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/sponsorship.html" class="nav-link external"> |
| 赞助 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/thanks.html" class="nav-link external"> |
| 致谢 |
| <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/events/current-event" class="nav-link external"> |
| 活动 |
| <!----></a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">语言</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/UserGuide/V0.10.x/Server/Config Manual.html" class="nav-link">English</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.10.x/Server/Config Manual.html" class="nav-link">简体中文</a></li></ul></div></div> <a href="https://github.com/apache/iotdb.git" target="_blank" rel="noopener noreferrer" class="repo-link"> |
| gitHub |
| <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB用户手册 (v0.10.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>开始</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>概述</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>概念</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>服务器端</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/zh/UserGuide/V0.10.x/Server/Download.html" class="sidebar-link">下载</a></li><li><a href="/zh/UserGuide/V0.10.x/Server/Single Node Setup.html" class="sidebar-link">单节点安装</a></li><li><a href="/zh/UserGuide/V0.10.x/Server/Cluster Setup.html" class="sidebar-link">集群设置</a></li><li><a href="/zh/UserGuide/V0.10.x/Server/Config Manual.html" class="active sidebar-link">配置手册</a></li><li><a href="/zh/UserGuide/V0.10.x/Server/Docker Image.html" class="sidebar-link">Docker镜像</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>客户端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>操作指南</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统工具</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>生态集成</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统设计</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="配置手册"><a href="#配置手册" class="header-anchor">#</a> 配置手册</h1> <p>为方便IoTDB Server的配置与管理，IoTDB Server为用户提供三种配置项，使得用户可以在启动服务器或服务器运行时对其进行配置。</p> <p>三种配置项的配置文件均位于IoTDB安装目录：<code>$IOTDB_HOME/conf</code>文件夹下,其中涉及server配置的共有2个文件，分别为：<code>iotdb-env.sh</code>, <code>iotdb-engine.properties</code>。用户可以通过更改其中的配置项对系统运行的相关配置项进行配置。</p> <p>配置文件的说明如下：</p> <ul><li><p><code>iotdb-env.sh</code>：环境配置项的默认配置文件。用户可以在文件中配置JAVA-JVM的相关系统配置项。</p></li> <li><p><code>iotdb-engine.properties</code>：IoTDB引擎层系统配置项的默认配置文件。用户可以在文件中配置IoTDB引擎运行时的相关参数，如JDBC服务监听端口(<code>rpc_port</code>)、overflow数据文件存储目录(<code>overflow_data_dir</code>)等。此外，用户可以在文件中配置IoTDB存储时TsFile文件的相关信息，如每次将内存中的数据写入到磁盘时的数据大小(<code>group_size_in_byte</code>)，内存中每个列打一次包的大小(<code>page_size_in_byte</code>)等。</p></li></ul> <h2 id="热修改配置项"><a href="#热修改配置项" class="header-anchor">#</a> 热修改配置项</h2> <p>为方便用户使用，IoTDB Server为用户提供了热修改功能，即在系统运行过程中修改<code>iotdb-engine.properties</code>中部分配置参数并即时应用到系统中。下面介绍的参数中，改后 |
| 生效方式为<code>触发生效</code>的均为支持热修改的配置参数。</p> <p>触发方式：客户端发送<code>load configuration</code>命令至IoTDB Server，客户端的使用方式详见第4章</p> <h2 id="环境配置项"><a href="#环境配置项" class="header-anchor">#</a> 环境配置项</h2> <p>环境配置项主要用于对IoTDB Server运行的Java环境相关参数进行配置，如JVM相关配置。IoTDB Server启动时，此部分配置会被传给JVM。用户可以通过查看 <code>iotdb-env.sh</code>(或<code>iotdb-env.bat</code>)文件查看环境配置项内容。详细配置项说明如下：</p> <ul><li>LOCAL_JMX</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">LOCAL_JMX</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">JMX监控模式，配置为yes表示仅允许本地监控，设置为no的时候表示允许远程监控</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">枚举String : “yes”, “no”</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">yes</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>JMX_PORT</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">JMX_PORT</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">JMX监听端口。请确认该端口不是系统保留端口并且未被占用。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Short Int: [0,65535]</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">31999</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>MAX_HEAP_SIZE</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">MAX_HEAP_SIZE</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IoTDB启动时能使用的最大堆内存大小。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">取决于操作系统和机器配置。在Linux或MacOS系统下默认为机器内存的四分之一。在Windows系统下，32位系统的默认值是512M，64位系统默认值是2G。</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>HEAP_NEWSIZE</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">HEAP_NEWSIZE</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IoTDB启动时能使用的最小堆内存大小。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">取决于操作系统和机器配置。在Linux或MacOS系统下默认值为机器CPU核数乘以100M的值与MAX_HEAP_SIZE四分之一这二者的最小值。在Windows系统下，32位系统的默认值是512M，64位系统默认值是2G。。</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <h2 id="系统配置项"><a href="#系统配置项" class="header-anchor">#</a> 系统配置项</h2> <p>系统配置项是IoTDB Server运行的核心配置，它主要用于设置IoTDB Server文件层和引擎层的参数，便于用户根据自身需求调整Server的相关配置，以达到较好的性能表现。系统配置项可分为两大模块：文件层配置项和引擎层配置项。用户可以通过查看<code>iotdb-engine.properties</code>,文件查看和修改两种配置项的内容。在0.7.0版本中字符串类型的配置项大小写敏感。</p> <h3 id="文件层配置"><a href="#文件层配置" class="header-anchor">#</a> 文件层配置</h3> <ul><li>compressor</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">compressor</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">数据压缩方法</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">枚举String : “UNCOMPRESSED”, “SNAPPY”</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">UNCOMPRESSED</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>group_size_in_byte</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">group_size_in_byte</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">每次将内存中的数据写入到磁盘时的最大写入字节数</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">134217728</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>max_number_of_points_in_page</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">max_number_of_points_in_page</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">一个页中最多包含的数据点（时间戳-值的二元组）数量</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">1048576</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>max_degree_of_index_node</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">max_degree_of_index_node</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">元数据索引树的最大度（即每个节点的最大子节点个数）</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">1024</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">仅允许在第一次启动服务器前修改</td></tr></tbody></table> <ul><li>max_string_length</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">max_string_length</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">针对字符串类型的数据，单个字符串最大长度，单位为字符</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">128</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>page_size_in_byte</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">page_size_in_byte</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">内存中每个列写出时，写成的单页最大的大小，单位为字节</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">65536</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>time_series_data_type</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">time_series_data_type</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">时间戳数据类型</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">枚举String: "INT32", "INT64"</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">Int64</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>time_encoder</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">time_encoder</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">时间列编码方式</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">枚举String: “TS_2DIFF”,“PLAIN”,“RLE”</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">TS_2DIFF</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>float_precision</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">float_precision</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">浮点数精度，为小数点后数字的位数</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">默认为2位。注意：32位浮点数的十进制精度为7位，64位浮点数的十进制精度为15位。如果设置超过机器精度将没有实际意义。</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>bloomFilterErrorRate</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">bloomFilterErrorRate</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">bloom过滤器的误报率. 在加载元数据之前 Bloom filter 可以检查给定的时间序列是否在 TsFile 中。这可以优化加载元数据的性能，并跳过不包含指定时间序列的 TsFile。如果你想了解更多关于它的细节，你可以参考: <a href="https://en.wikipedia.org/wiki/Bloom_filter" target="_blank" rel="noopener noreferrer">wiki page of bloom filter<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a>.</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">浮点数, 范围为(0, 1)</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">0.05</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启生效</td></tr></tbody></table> <h3 id="引擎层配置"><a href="#引擎层配置" class="header-anchor">#</a> 引擎层配置</h3> <ul><li>back_loop_period_in_second</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">back_loop_period_in_second</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">系统统计量触发统计的频率，单位为秒。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">5</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>data_dirs</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">data_dirs</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IoTDB数据存储路径，默认存放在和bin目录同级的data目录下。相对路径的起始目录与操作系统相关，建议使用绝对路径。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">data</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>enable_wal</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">enable_wal</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">是否开启写前日志，默认值为true表示开启，配置成false表示关闭</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Bool</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>tag_attribute_total_size</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">tag_attribute_total_size</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">每个时间序列标签和属性的最大持久化字节数</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">700</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">仅允许在第一次启动服务器前修改</td></tr></tbody></table> <ul><li>enable_partial_insert</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">enable_partial_insert</th></tr></thead> <tbody><tr><td style="text-align:center;">Description</td> <td style="text-align:left;">在一次insert请求中，如果部分测点写入失败，是否继续写入其他测点</td></tr> <tr><td style="text-align:center;">Type</td> <td style="text-align:left;">Bool</td></tr> <tr><td style="text-align:center;">Default</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">Effective</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>fetch_size</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">fetch_size</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">批量读取数据的时候，每一次读取数据的数量。单位为数据条数，即不同时间戳的个数。某次会话中，用户可以在使用时自己设定，此时仅在该次会话中生效。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">10000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>force_wal_period_in_ms</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">force_wal_period_in_ms</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">写前日志定期刷新到磁盘的周期，单位毫秒，有可能丢失至多flush_wal_period_in_ms毫秒的操作。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">10</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>flush_wal_threshold</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">flush_wal_threshold</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">写前日志的条数达到该值之后，刷新到磁盘，有可能丢失至多flush_wal_threshold个操作</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">10000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>merge_concurrent_threads</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">merge_concurrent_threads</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">乱序数据进行合并的时候最多可以用来进行merge的线程数。值越大，对IO和CPU消耗越多。值越小，当乱序数据过多时，磁盘占用量越大，读取会变慢。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">0</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>enable_parameter_adapter</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">enable_parameter_adapter</th></tr></thead> <tbody><tr><td style="text-align:center;">Description</td> <td style="text-align:left;">开启自动调整系统参数，避免爆内存</td></tr> <tr><td style="text-align:center;">Type</td> <td style="text-align:left;">Bool</td></tr> <tr><td style="text-align:center;">Default</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">Effective</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>memtable_size_threshold</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">memtable_size_threshold</th></tr></thead> <tbody><tr><td style="text-align:center;">Description</td> <td style="text-align:left;">内存缓冲区 memtable 阈值</td></tr> <tr><td style="text-align:center;">Type</td> <td style="text-align:left;">Long</td></tr> <tr><td style="text-align:center;">Default</td> <td style="text-align:left;">1073741824</td></tr> <tr><td style="text-align:center;">Effective</td> <td style="text-align:left;">enable_parameter_adapter为false时生效、重启服务器生效</td></tr></tbody></table> <ul><li>avg_series_point_number_threshold</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">avg_series_point_number_threshold</th></tr></thead> <tbody><tr><td style="text-align:center;">Description</td> <td style="text-align:left;">内存中平均每个时间序列点数最大值，达到触发flush</td></tr> <tr><td style="text-align:center;">Type</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">Default</td> <td style="text-align:left;">10000</td></tr> <tr><td style="text-align:center;">Effective</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>tsfile_size_threshold</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">tsfile_size_threshold</th></tr></thead> <tbody><tr><td style="text-align:center;">Description</td> <td style="text-align:left;">每个 tsfile 大小</td></tr> <tr><td style="text-align:center;">Type</td> <td style="text-align:left;">Long</td></tr> <tr><td style="text-align:center;">Default</td> <td style="text-align:left;">536870912</td></tr> <tr><td style="text-align:center;">Effective</td> <td style="text-align:left;">enable_parameter_adapter为false时生效、重启服务器生效</td></tr></tbody></table> <ul><li>enable_partition</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">enable_partition</th></tr></thead> <tbody><tr><td style="text-align:center;">Description</td> <td style="text-align:left;">是否开启将数据按时间分区存储的功能，如果关闭，所有数据都属于分区 0</td></tr> <tr><td style="text-align:center;">Type</td> <td style="text-align:left;">Bool</td></tr> <tr><td style="text-align:center;">Default</td> <td style="text-align:left;">false</td></tr> <tr><td style="text-align:center;">Effective</td> <td style="text-align:left;">仅允许在第一次启动服务器前修改</td></tr></tbody></table> <ul><li>partition_interval</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">partition_interval</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">用于存储组分区的时间段长度，用户指定的存储组下会使用该时间段进行分区，单位：秒</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int64</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">604800</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">仅允许在第一次启动服务器前修改</td></tr></tbody></table> <ul><li>memtable_num_in_each_storage_group</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">memtable_num_in_each_storage_group</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">每个存储组所控制的memtable的最大数量，这决定了来源于多少个不同时间分区的数据可以并发写入<br>举例来说，你的时间分区为按天分区，想要同时并发写入3天的数据，那么这个值应该被设置为6(3个给顺序写入，3个给乱序写入)</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">10</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>multi_dir_strategy</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">multi_dir_strategy</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">IoTDB在tsfile_dir中为TsFile选择目录时采用的策略。可使用简单类名或类名全称。系统提供以下三种策略：<br>1. SequenceStrategy：IoTDB按顺序从tsfile_dir中选择目录，依次遍历tsfile_dir中的所有目录，并不断轮循；<br>2. MaxDiskUsableSpaceFirstStrategy：IoTDB优先选择tsfile_dir中对应磁盘空余空间最大的目录；<br>3. MinFolderOccupiedSpaceFirstStrategy：IoTDB优先选择tsfile_dir中已使用空间最小的目录；<br>4. UserDfineStrategyPackage（用户自定义策略）<br>您可以通过以下方法完成用户自定义策略：<br>1. 继承cn.edu.tsinghua.iotdb.conf.directories.strategy.DirectoryStrategy类并实现自身的Strategy方法；<br>2. 将实现的类的完整类名（包名加类名，UserDfineStrategyPackage）填写到该配置项；<br>3. 将该类jar包添加到工程中。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">MaxDiskUsableSpaceFirstStrategy</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>rpc_address</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">rpc_address</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;"></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">"0.0.0.0"</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>rpc_port</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">rpc_port</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">jdbc服务监听端口。请确认该端口不是系统保留端口并且未被占用。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Short Int : [0,65535]</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">6667</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>time_zone</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">time_zone</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">服务器所处的时区，默认为北京时间（东八区）</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Time Zone String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">+08:00</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">触发生效</td></tr></tbody></table> <ul><li>enable_stat_monitor</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">enable_stat_monitor</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">选择是否启动后台统计功能</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Boolean</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">false</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>concurrent_flush_thread</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">concurrent_flush_thread</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">当IoTDB将内存中的数据写入磁盘时，最多启动多少个线程来执行该操作。如果该值小于等于0，那么采用机器所安装的CPU核的数量。默认值为0。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">0</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>stat_monitor_detect_freq_in_second</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">stat_monitor_detect_freq_in_second</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">每隔一段时间（以秒为单位）检测当前记录统计量时间范围是否超过stat_monitor_retain_interval，并进行定时清理。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">600</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>stat_monitor_retain_interval_in_second</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">stat_monitor_retain_interval_in_second</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">系统统计信息的保留时间（以秒为单位），超过保留时间范围的统计数据将被定时清理。</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Int32</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">600</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>tsfile_storage_fs</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">tsfile_storage_fs</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">Tsfile和相关数据文件的存储文件系统。目前支持LOCAL（本地文件系统）和HDFS两种</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">LOCAL</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">仅允许在第一次启动服务器前修改</td></tr></tbody></table> <ul><li>core_site_path</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">core_site_path</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在Tsfile和相关数据文件存储到HDFS的情况下用于配置core-site.xml的绝对路径</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">/etc/hadoop/conf/core-site.xml</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>hdfs_site_path</li></ul> <table><thead><tr><th style="text-align:center;">Name</th> <th style="text-align:left;">hdfs_site_path</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在Tsfile和相关数据文件存储到HDFS的情况下用于配置hdfs-site.xml的绝对路径</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">/etc/hadoop/conf/hdfs-site.xml</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>hdfs_ip</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">hdfs_ip</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在Tsfile和相关数据文件存储到HDFS的情况下用于配置HDFS的IP。<strong>如果配置了多于1个hdfs_ip，则表明启用了Hadoop HA</strong></td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">localhost</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>hdfs_port</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">hdfs_port</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在Tsfile和相关数据文件存储到HDFS的情况下用于配置HDFS的端口</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">9000</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>dfs_nameservices</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">hdfs_nameservices</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在使用Hadoop HA的情况下用于配置HDFS的nameservices</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">hdfsnamespace</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>dfs_ha_namenodes</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">hdfs_ha_namenodes</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在使用Hadoop HA的情况下用于配置HDFS的nameservices下的namenodes</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">nn1,nn2</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>dfs_ha_automatic_failover_enabled</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">dfs_ha_automatic_failover_enabled</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在使用Hadoop HA的情况下用于配置是否使用失败自动切换</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">Boolean</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>dfs_client_failover_proxy_provider</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">dfs_client_failover_proxy_provider</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">在使用Hadoop HA且使用失败自动切换的情况下配置失败自动切换的实现方式</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>hdfs_use_kerberos</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">hdfs_use_kerberos</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">是否使用kerberos验证访问hdfs</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">false</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>kerberos_keytab_file_path</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">kerberos_keytab_file_path</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">kerberos keytab file 的完整路径</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">/path</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>kerberos_principal</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">kerberos_principal</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">Kerberos 认证原则</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">your principal</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>authorizer_provider_class</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">authorizer_provider_class</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">权限服务的类名</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">org.apache.iotdb.db.auth.authorizer.LocalFileAuthorizer</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr> <tr><td style="text-align:center;">其他可选值</td> <td style="text-align:left;">org.apache.iotdb.db.auth.authorizer.OpenIdAuthorizer</td></tr></tbody></table> <ul><li>openID_url</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">openID_url</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">openID 服务器地址 （当OpenIdAuthorizer被启用时必须设定）</td></tr> <tr><td style="text-align:center;">类型</td> <td style="text-align:left;">String （一个http地址）</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">无</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <h2 id="数据类型自动推断"><a href="#数据类型自动推断" class="header-anchor">#</a> 数据类型自动推断</h2> <ul><li>enable_auto_create_schema</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">enable_auto_create_schema</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">当写入的序列不存在时，是否自动创建序列到Schema</td></tr> <tr><td style="text-align:center;">取值</td> <td style="text-align:left;">true or false</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">true</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>default_storage_group_level</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">default_storage_group_level</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">当写入的数据不存在且自动创建序列时，若需要创建相应的存储组，将序列路径的哪一层当做存储组. 例如, 如果我们接到一个新序列 root.sg0.d1.s2, 并且level=1， 那么root.sg0被视为存储组（因为root是level 0 层）</td></tr> <tr><td style="text-align:center;">取值</td> <td style="text-align:left;">整数</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">1</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>boolean_string_infer_type</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">boolean_string_infer_type</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">"true" 或者 "false" 被视为什么数据</td></tr> <tr><td style="text-align:center;">取值</td> <td style="text-align:left;">BOOLEAN 或者 TEXT</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">BOOLEAN</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>integer_string_infer_type</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">integer_string_infer_type</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">整数型数据被推断成什么</td></tr> <tr><td style="text-align:center;">取值</td> <td style="text-align:left;">INT32, INT64, FLOAT, DOUBLE, TEXT</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">FLOAT</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>nan_string_infer_type</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">nan_string_infer_type</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">NaN 字符串被推断为什么</td></tr> <tr><td style="text-align:center;">取值</td> <td style="text-align:left;">DOUBLE, FLOAT or TEXT</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">FLOAT</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <ul><li>floating_string_infer_type</li></ul> <table><thead><tr><th style="text-align:center;">名字</th> <th style="text-align:left;">floating_string_infer_type</th></tr></thead> <tbody><tr><td style="text-align:center;">描述</td> <td style="text-align:left;">"6.7"等浮点数被推断为什么</td></tr> <tr><td style="text-align:center;">取值</td> <td style="text-align:left;">DOUBLE, FLOAT or TEXT</td></tr> <tr><td style="text-align:center;">默认值</td> <td style="text-align:left;">FLOAT</td></tr> <tr><td style="text-align:center;">改后生效方式</td> <td style="text-align:left;">重启服务器生效</td></tr></tbody></table> <h2 id="开启gc日志"><a href="#开启gc日志" class="header-anchor">#</a> 开启GC日志</h2> <p>GC日志默认是关闭的。为了性能调优，用户可能会需要手机GC信息。 |
| 若要打开GC日志，则需要在启动IoTDB Server的时候加上"printgc"参数：</p> <div class="language-bash line-numbers-mode"><pre class="language-bash"><code><span class="token function">nohup</span> sbin/start-server.sh printgc <span class="token operator">></span>/dev/null <span class="token operator"><span class="token file-descriptor important">2</span>></span><span class="token file-descriptor important">&1</span> <span class="token operator">&</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>或者</p> <div class="language-bash line-numbers-mode"><pre class="language-bash"><code>sbin<span class="token punctuation">\</span>start-server.bat printgc |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>GC日志会被存储在<code>IOTDB_HOME/logs/gc.log</code>. 至多会存储10个gc.log文件，每个文件最多10MB。</p></div> <div class="page-nav"><p class="inner"><span class="prev"> |
| ← |
| <a href="/zh/UserGuide/V0.10.x/Server/Cluster Setup.html" class="prev"> |
| 集群设置 |
| </a></span> <span class="next"><a href="/zh/UserGuide/V0.10.x/Server/Docker Image.html"> |
| Docker镜像 |
| </a> |
| → |
| </span></p></div> <p style="text-align: center;">Copyright © 2021 The Apache Software Foundation.<br> |
| Apache and the Apache feather logo are trademarks of The Apache Software Foundation</p> <p style="text-align: center; margin-top: 10px; color: #444"> |
| Contact us: Join QQ Group 659990460 | Add friend <i>tietouqiao</i> and be invited to Wechat Group<br> |
| see <a href="https://github.com/apache/iotdb/issues/1995">Join the community</a> for more</p></main></div><div class="global-ui"></div></div> |
| <script src="/assets/js/app.097a6368.js" defer></script><script src="/assets/js/3.96a076a8.js" defer></script><script src="/assets/js/4.a65360c5.js" defer></script><script src="/assets/js/468.a6ae17ae.js" defer></script> |
| </body> |
| </html> |
