| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta charset="utf-8" /> |
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> |
| <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags --> |
| <meta name="description" content="A new open source Apache Hadoop ecosystem project, Apache Kudu completes Hadoop's storage layer to enable fast analytics on fast data" /> |
| <meta name="author" content="Cloudera" /> |
| <title>Apache Kudu - Apache Kudu 1.13.0 Release Notes</title> |
| <!-- Bootstrap core CSS --> |
| <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" |
| integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" |
| crossorigin="anonymous"> |
| |
| <!-- Custom styles for this template --> |
| <link href="/css/kudu.css" rel="stylesheet"/> |
| <link href="/css/asciidoc.css" rel="stylesheet"/> |
| <link rel="shortcut icon" href="/img/logo-favicon.ico" /> |
| <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css" /> |
| |
| |
| |
| <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries --> |
| <!--[if lt IE 9]> |
| <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script> |
| <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script> |
| <![endif]--> |
| </head> |
| <body> |
| <div class="kudu-site container-fluid"> |
| <!-- Static navbar --> |
| <nav class="navbar navbar-default"> |
| <div class="container-fluid"> |
| <div class="navbar-header"> |
| <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"> |
| <span class="sr-only">Toggle navigation</span> |
| <span class="icon-bar"></span> |
| <span class="icon-bar"></span> |
| <span class="icon-bar"></span> |
| </button> |
| |
| <a class="logo" href="/"><img |
| src="//d3dr9sfxru4sde.cloudfront.net/i/k/apachekudu_logo_0716_80px.png" |
| srcset="//d3dr9sfxru4sde.cloudfront.net/i/k/apachekudu_logo_0716_80px.png 1x, //d3dr9sfxru4sde.cloudfront.net/i/k/apachekudu_logo_0716_160px.png 2x" |
| alt="Apache Kudu"/></a> |
| |
| </div> |
| <div id="navbar" class="collapse navbar-collapse"> |
| <ul class="nav navbar-nav navbar-right"> |
| <li > |
| <a href="/">Home</a> |
| </li> |
| <li > |
| <a href="/overview.html">Overview</a> |
| </li> |
| <li class="active"> |
| <a href="/docs/">Documentation</a> |
| </li> |
| <li > |
| <a href="/releases/">Releases</a> |
| </li> |
| <li > |
| <a href="/blog/">Blog</a> |
| </li> |
| <!-- NOTE: this dropdown menu does not appear on Mobile, so don't add anything here |
| that doesn't also appear elsewhere on the site. --> |
| <li class="dropdown"> |
| <a href="/community.html" role="button" aria-haspopup="true" aria-expanded="false">Community <span class="caret"></span></a> |
| <ul class="dropdown-menu"> |
| <li class="dropdown-header">GET IN TOUCH</li> |
| <li><a class="icon email" href="/community.html">Mailing Lists</a></li> |
| <li><a class="icon slack" href="https://getkudu-slack.herokuapp.com/">Slack Channel</a></li> |
| <li role="separator" class="divider"></li> |
| <li><a href="/community.html#meetups-user-groups-and-conference-presentations">Events and Meetups</a></li> |
| <li><a href="/committers.html">Project Committers</a></li> |
| <li><a href="/ecosystem.html">Ecosystem</a></li> |
| <!--<li><a href="/roadmap.html">Roadmap</a></li>--> |
| <li><a href="/community.html#contributions">How to Contribute</a></li> |
| <li role="separator" class="divider"></li> |
| <li class="dropdown-header">DEVELOPER RESOURCES</li> |
| <li><a class="icon github" href="https://github.com/apache/incubator-kudu">GitHub</a></li> |
| <li><a class="icon gerrit" href="http://gerrit.cloudera.org:8080/#/q/status:open+project:kudu">Gerrit Code Review</a></li> |
| <li><a class="icon jira" href="https://issues.apache.org/jira/browse/KUDU">JIRA Issue Tracker</a></li> |
| <li role="separator" class="divider"></li> |
| <li class="dropdown-header">SOCIAL MEDIA</li> |
| <li><a class="icon twitter" href="https://twitter.com/ApacheKudu">Twitter</a></li> |
| <li><a href="https://www.reddit.com/r/kudu/">Reddit</a></li> |
| <li role="separator" class="divider"></li> |
| <li class="dropdown-header">APACHE SOFTWARE FOUNDATION</li> |
| <li><a href="https://www.apache.org/security/" target="_blank">Security</a></li> |
| <li><a href="https://www.apache.org/foundation/sponsorship.html" target="_blank">Sponsorship</a></li> |
| <li><a href="https://www.apache.org/foundation/thanks.html" target="_blank">Thanks</a></li> |
| <li><a href="https://www.apache.org/licenses/" target="_blank">License</a></li> |
| </ul> |
| </li> |
| <li > |
| <a href="/faq.html">FAQ</a> |
| </li> |
| </ul><!-- /.nav --> |
| </div><!-- /#navbar --> |
| </div><!-- /.container-fluid --> |
| </nav> |
| |
| <!-- |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| --> |
| |
| |
| <div class="container"> |
| <div class="row"> |
| <div class="col-md-9"> |
| |
| <h1>Apache Kudu 1.13.0 Release Notes</h1> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_upgrade_notes"><a class="link" href="#rn_1.13.0_upgrade_notes">Upgrade Notes</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>The Sentry integration has been removed and the Ranger integration should now |
| be used in its place for fine-grained authorization.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_deprecations"><a class="link" href="#rn_1.13.0_deprecations">Deprecations</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Support for Python 2.x and Python 3.4 and earlier is deprecated and may be |
| removed in the next minor release.</p> |
| </li> |
| <li> |
| <p>The <code>kudu-mapreduce</code> integration has been deprecated and may be removed in the |
| next minor release. Similar functionality and capabilities now exist via the |
| Apache Spark, Apache Hive, Apache Impala, and Apache NiFi integrations.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_new_features"><a class="link" href="#rn_1.13.0_new_features">New features</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Added table ownership support. All newly created tables are automatically |
| owned by the user creating them. It is also possible to change the owner by |
| altering the table. You can also assign privileges to table owners via Apache |
| Ranger (see <a href="https://issues.apache.org/jira/browse/KUDU-3090">KUDU-3090</a>).</p> |
| </li> |
| <li> |
| <p>An experimental feature is added to Kudu that allows it to automatically |
| rebalance tablet replicas among tablet servers. The background task can be |
| enabled by setting the <code>--auto_rebalancing_enabled</code> flag on the Kudu masters. |
| Before starting auto-rebalancing on an existing cluster, the CLI rebalancer |
| tool should be run first (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-2780">KUDU-2780</a>).</p> |
| </li> |
| <li> |
| <p>Bloom filter column predicate pushdown has been added to allow optimized |
| execution of filters which match on a set of column values with a |
| false-positive rate. Support for Impala queries utilizing Bloom filter |
| predicate is available yielding performance improvements of 19% to 30% in TPC-H |
| benchmarks and around 41% improvement for distributed joins across large |
| tables. Support for Spark is not yet available. (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-2483">KUDU-2483</a>).</p> |
| </li> |
| <li> |
| <p>AArch64-based (ARM) architectures are now supported including published Docker |
| images.</p> |
| </li> |
| <li> |
| <p>The Java client now supports the columnar row format returned from the server |
| transparently. Using this format can reduce the server CPU and size of the |
| request over the network for scans. The columnar format can be enabled via the |
| setRowDataFormat() method on the KuduScanner.</p> |
| </li> |
| <li> |
| <p>An experimental feature that can be enabled by setting the |
| <code>--enable_workload_score_for_perf_improvement_ops</code> prioritizes flushing and |
| compacting hot tablets.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_improvements"><a class="link" href="#rn_1.13.0_improvements">Optimizations and improvements</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Hive metastore synchronization now supports Hive 3 and later.</p> |
| </li> |
| <li> |
| <p>The Spark KuduContext accumulator metrics now track operation counts per table |
| instead of cumulatively for all tables.</p> |
| </li> |
| <li> |
| <p>The <code>kudu local_replica delete</code> CLI tool now accepts multiple tablet |
| identifiers. Along with the newly added <code>--ignore_nonexistent</code> flag, this |
| helps with scripting scenarios when removing multiple tablet replicas from a |
| particular Tablet Server.</p> |
| </li> |
| <li> |
| <p>Both Master’s and Tablet Server’s web UI now displays the name for a service |
| thread pool group at the <code>/threadz</code> page</p> |
| </li> |
| <li> |
| <p>Introduced <code>queue_overflow_rejections_</code> metrics for both Masters and Tablet |
| Servers: number of RPC requests of a particular type dropped due to RPC |
| service queue overflow.</p> |
| </li> |
| <li> |
| <p>Introduced a CoDel-like queue control mechanism for the apply queue. This |
| helps to avoid accumulating too many write requests and timing them out in |
| case of seek-bound workloads (e.g., uniform random inserts). The newly |
| introduced queue control mechanism is disabled by default. To enable it, set |
| the <code>--tablet_apply_pool_overload_threshold_ms</code> Tablet Server’s flag to |
| appropriate value, e.g. 250 (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-1587">KUDU-1587</a>).</p> |
| </li> |
| <li> |
| <p>Java client’s error collector can be resized (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-1422">KUDU-1422</a>).</p> |
| </li> |
| <li> |
| <p>Calls to the Kudu master server are now drastically reduced when using scan |
| tokens. Previously deserializing a scan token would result in a GetTableSchema |
| request and potentially a GetTableLocations request. Now the table schema and |
| location information is serialized into the scan token itself avoiding the |
| need for any requests to the master when processing them.</p> |
| </li> |
| <li> |
| <p>The default size of Master’s RPC queue is now 100 (it was 50 in earlier |
| releases). This is to optimize for use cases where a Kudu cluster has many |
| clients working concurrently.</p> |
| </li> |
| <li> |
| <p>Masters now have an option to cache table location responses. This is |
| targeted for Kudu clusters which have many clients working concurrently. By |
| default, the caching of table location responses is disabled. To enable table |
| location caching, set the proper capacity of the table location cache using |
| Master’s <code>--table_locations_cache_capacity_mb</code> flag (setting to 0 disables the |
| caching). Up to 17% of improvement is observed in GetTableLocations request |
| rate when enabling the caching.</p> |
| </li> |
| <li> |
| <p>Removed lock contention on Raft consensus lock in Tablet Servers while |
| processing a write request. This helps to avoid RPC queue overflows when |
| handling concurrent write requests to the same tablet from multiple clients |
| (see <a href="https://issues.apache.org/jira/browse/KUDU-2727">KUDU-2727</a>).</p> |
| </li> |
| <li> |
| <p>Master’s performance for handling concurrent GetTableSchema requests has been |
| improved. End-to-end tests indicated up to 15% improvement in sustained |
| request rate for high concurrency scenarios.</p> |
| </li> |
| <li> |
| <p>Kudu servers now use protobuf Arena objects to perform all RPC |
| request/response-related memory allocations. This gives a boost for overall |
| RPC performance, and with further optimization the result request rate |
| was increased significantly for certain methods. For example, the result request |
| rate increased up to 25% for Master’s GetTabletLocations() RPC in case of |
| highly concurrent scenarios (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-636">KUDU-636</a>).</p> |
| </li> |
| <li> |
| <p>Tablet Servers now use protobuf Arena for allocating Raft-related runtime |
| structures. This results in substantial reduction of CPU cycles used and |
| increases write throughput (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-636">KUDU-636</a>).</p> |
| </li> |
| <li> |
| <p>Tablet Servers now use protobuf Arena for allocating EncodedKeys to reduce |
| allocator contention and improve memory locality (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-636">KUDU-636</a>).</p> |
| </li> |
| <li> |
| <p>Bloom filter predicate evaluation for scans can be computationally expensive. |
| A heuristic has been added that verifies rejection rate of the supplied Bloom |
| filter predicate below which the Bloom filter predicate is automatically |
| disabled. This helped reduce regression observed with Bloom filter predicate |
| in TPC-H benchmark query #9 (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-3140">KUDU-3140</a>).</p> |
| </li> |
| <li> |
| <p>Improved scan performance of dictionary and plain-encoded string columns by |
| avoiding copying them (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-2844">KUDU-2844</a>).</p> |
| </li> |
| <li> |
| <p>Improved maintenance manager’s heuristics to prioritize larger memstores |
| (see <a href="https://issues.apache.org/jira/browse/KUDU-3180">KUDU-3180</a>).</p> |
| </li> |
| <li> |
| <p>Spark client’s KuduReadOptions now supports setting a snapshot timestamp for |
| repeatable reads with READ_AT_SNAPSHOT consistency mode (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-3177">KUDU-3177</a>).</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_fixed_issues"><a class="link" href="#rn_1.13.0_fixed_issues">Fixed Issues</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Kudu scans now honor location assignments when multiple tablet servers are |
| co-located with the client.</p> |
| </li> |
| <li> |
| <p>Fixed a bug that caused IllegalArgumentException to be thrown when trying to |
| create a predicate for a DATE column in Kudu Java client (see |
| <a href="https://issues.apache.org/jira/browse/KUDU-3152">KUDU-3152</a>).</p> |
| </li> |
| <li> |
| <p>Fixed a potential race when multiple RPCs work on the same scanner object.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_wire_compatibility"><a class="link" href="#rn_1.13.0_wire_compatibility">Wire Protocol compatibility</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Kudu 1.13.0 is wire-compatible with previous versions of Kudu:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Kudu 1.13 clients may connect to servers running Kudu 1.0 or later. If the client uses |
| features that are not available on the target server, an error will be returned.</p> |
| </li> |
| <li> |
| <p>Rolling upgrade between Kudu 1.12 and Kudu 1.13 servers is believed to be possible |
| though has not been sufficiently tested. Users are encouraged to shut down all nodes |
| in the cluster, upgrade the software, and then restart the daemons on the new version.</p> |
| </li> |
| <li> |
| <p>Kudu 1.0 clients may connect to servers running Kudu 1.13 with the exception of the |
| below-mentioned restrictions regarding secure clusters.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="paragraph"> |
| <p>The authentication features introduced in Kudu 1.3 place the following limitations |
| on wire compatibility between Kudu 1.13 and versions earlier than 1.3:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>If a Kudu 1.13 cluster is configured with authentication or encryption set to "required", |
| clients older than Kudu 1.3 will be unable to connect.</p> |
| </li> |
| <li> |
| <p>If a Kudu 1.13 cluster is configured with authentication and encryption set to "optional" |
| or "disabled", older clients will still be able to connect.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_incompatible_changes"><a class="link" href="#rn_1.13.0_incompatible_changes">Incompatible Changes in Kudu 1.13.0</a></h2> |
| <div class="sectionbody"> |
| <div class="sect2"> |
| <h3 id="rn_1.13.0_client_compatibility"><a class="link" href="#rn_1.13.0_client_compatibility">Client Library Compatibility</a></h3> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>The Kudu 1.13 Java client library is API- and ABI-compatible with Kudu 1.12. Applications |
| written against Kudu 1.12 will compile and run against the Kudu 1.13 client library and |
| vice-versa.</p> |
| </li> |
| <li> |
| <p>The Kudu 1.13 C++ client is API- and ABI-forward-compatible with Kudu 1.12. |
| Applications written and compiled against the Kudu 1.12 client library will run without |
| modification against the Kudu 1.13 client library. Applications written and compiled |
| against the Kudu 1.13 client library will run without modification against the Kudu 1.12 |
| client library.</p> |
| </li> |
| <li> |
| <p>The Kudu 1.13 Python client is API-compatible with Kudu 1.12. Applications |
| written against Kudu 1.12 will continue to run against the Kudu 1.13 client |
| and vice-versa.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_known_issues"><a class="link" href="#rn_1.13.0_known_issues">Known Issues and Limitations</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Please refer to the <a href="known_issues.html">Known Issues and Limitations</a> section of the |
| documentation.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.13.0_contributors"><a class="link" href="#rn_1.13.0_contributors">Contributors</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Kudu 1.13.0 includes contributions from 22 people, including 9 first-time |
| contributors:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Jim Apple</p> |
| </li> |
| <li> |
| <p>Kevin J McCarthy</p> |
| </li> |
| <li> |
| <p>Li Zhiming</p> |
| </li> |
| <li> |
| <p>Mahesh Reddy</p> |
| </li> |
| <li> |
| <p>Romain Rigaux</p> |
| </li> |
| <li> |
| <p>RuiChen</p> |
| </li> |
| <li> |
| <p>Shuping Zhou</p> |
| </li> |
| <li> |
| <p>ningw</p> |
| </li> |
| <li> |
| <p>wenjie</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="resources_and_next_steps"><a class="link" href="#resources_and_next_steps">Resources</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><a href="http://kudu.apache.org">Kudu Website</a></p> |
| </li> |
| <li> |
| <p><a href="http://github.com/apache/kudu">Kudu GitHub Repository</a></p> |
| </li> |
| <li> |
| <p><a href="index.html">Kudu Documentation</a></p> |
| </li> |
| <li> |
| <p><a href="prior_release_notes.html">Release notes for older releases</a></p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_installation_options"><a class="link" href="#_installation_options">Installation Options</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>For full installation details, see <a href="installation.html">Kudu Installation</a>.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_next_steps"><a class="link" href="#_next_steps">Next Steps</a></h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><a href="quickstart.html">Kudu Quickstart</a></p> |
| </li> |
| <li> |
| <p><a href="installation.html">Installing Kudu</a></p> |
| </li> |
| <li> |
| <p><a href="configuration.html">Configuring Kudu</a></p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="col-md-3"> |
| |
| <div id="toc" data-spy="affix" data-offset-top="70"> |
| <ul> |
| |
| <li> |
| |
| <a href="index.html">Introducing Kudu</a> |
| </li> |
| <li> |
| <span class="active-toc">Kudu Release Notes</span> |
| <ul class="sectlevel1"> |
| <li><a href="#rn_1.13.0_upgrade_notes">Upgrade Notes</a></li> |
| <li><a href="#rn_1.13.0_deprecations">Deprecations</a></li> |
| <li><a href="#rn_1.13.0_new_features">New features</a></li> |
| <li><a href="#rn_1.13.0_improvements">Optimizations and improvements</a></li> |
| <li><a href="#rn_1.13.0_fixed_issues">Fixed Issues</a></li> |
| <li><a href="#rn_1.13.0_wire_compatibility">Wire Protocol compatibility</a></li> |
| <li><a href="#rn_1.13.0_incompatible_changes">Incompatible Changes in Kudu 1.13.0</a> |
| <ul class="sectlevel2"> |
| <li><a href="#rn_1.13.0_client_compatibility">Client Library Compatibility</a></li> |
| </ul> |
| </li> |
| <li><a href="#rn_1.13.0_known_issues">Known Issues and Limitations</a></li> |
| <li><a href="#rn_1.13.0_contributors">Contributors</a></li> |
| <li><a href="#resources_and_next_steps">Resources</a></li> |
| <li><a href="#_installation_options">Installation Options</a></li> |
| <li><a href="#_next_steps">Next Steps</a></li> |
| </ul> |
| </li> |
| <li> |
| |
| <a href="quickstart.html">Quickstart Guide</a> |
| </li> |
| <li> |
| |
| <a href="installation.html">Installation Guide</a> |
| </li> |
| <li> |
| |
| <a href="configuration.html">Configuring Kudu</a> |
| </li> |
| <li> |
| |
| <a href="hive_metastore.html">Using the Hive Metastore with Kudu</a> |
| </li> |
| <li> |
| |
| <a href="kudu_impala_integration.html">Using Impala with Kudu</a> |
| </li> |
| <li> |
| |
| <a href="administration.html">Administering Kudu</a> |
| </li> |
| <li> |
| |
| <a href="troubleshooting.html">Troubleshooting Kudu</a> |
| </li> |
| <li> |
| |
| <a href="developing.html">Developing Applications with Kudu</a> |
| </li> |
| <li> |
| |
| <a href="schema_design.html">Kudu Schema Design</a> |
| </li> |
| <li> |
| |
| <a href="scaling_guide.html">Kudu Scaling Guide</a> |
| </li> |
| <li> |
| |
| <a href="security.html">Kudu Security</a> |
| </li> |
| <li> |
| |
| <a href="transaction_semantics.html">Kudu Transaction Semantics</a> |
| </li> |
| <li> |
| |
| <a href="background_tasks.html">Background Maintenance Tasks</a> |
| </li> |
| <li> |
| |
| <a href="configuration_reference.html">Kudu Configuration Reference</a> |
| </li> |
| <li> |
| |
| <a href="command_line_tools_reference.html">Kudu Command Line Tools Reference</a> |
| </li> |
| <li> |
| |
| <a href="metrics_reference.html">Kudu Metrics Reference</a> |
| </li> |
| <li> |
| |
| <a href="known_issues.html">Known Issues and Limitations</a> |
| </li> |
| <li> |
| |
| <a href="contributing.html">Contributing to Kudu</a> |
| </li> |
| <li> |
| |
| <a href="export_control.html">Export Control Notice</a> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| </div> |
| <footer class="footer"> |
| <div class="row"> |
| <div class="col-md-9"> |
| <p class="small"> |
| Copyright © 2020 The Apache Software Foundation. Last updated 2020-12-01 12:29:41 -0800 |
| </p> |
| <p class="small"> |
| Apache Kudu, Kudu, Apache, the Apache feather logo, and the Apache Kudu |
| project logo are either registered trademarks or trademarks of The |
| Apache Software Foundation in the United States and other countries. |
| </p> |
| </div> |
| <div class="col-md-3"> |
| <a class="pull-right" href="https://www.apache.org/events/current-event.html"> |
| <img src="https://www.apache.org/events/current-event-234x60.png"/> |
| </a> |
| </div> |
| </div> |
| </footer> |
| </div> |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> |
| <script> |
| // Try to detect touch-screen devices. Note: Many laptops have touch screens. |
| $(document).ready(function() { |
| if ("ontouchstart" in document.documentElement) { |
| $(document.documentElement).addClass("touch"); |
| } else { |
| $(document.documentElement).addClass("no-touch"); |
| } |
| }); |
| </script> |
| <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" |
| integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" |
| crossorigin="anonymous"></script> |
| <script> |
| (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ |
| (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), |
| m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) |
| })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); |
| |
| ga('create', 'UA-68448017-1', 'auto'); |
| ga('send', 'pageview'); |
| </script> |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/anchor-js/3.1.0/anchor.js"></script> |
| <script> |
| anchors.options = { |
| placement: 'right', |
| visible: 'touch', |
| }; |
| anchors.add(); |
| </script> |
| </body> |
| </html> |
| |
