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| <main class="article default-main full-800" data-ceiling="topbar"> |
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| <p>You are viewing the documentation for a prerelease version.</p> |
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| <li class="tool edit"><a href="https://github.com/apache/cassandra/edit/trunk/doc/modules/cassandra/pages/managing/tools/sstable/sstableupgrade.adoc" title="Edit Page" target="_blank" rel="noopener">Edit</a></li> |
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| <article class="doc"> |
| <h1 class="page">sstableupgrade</h1> |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Upgrade the sstables in the given table (or snapshot) to the current |
| version of Cassandra. This process is typically done after a Cassandra |
| version upgrade. This operation will rewrite the sstables in the |
| specified table to match the currently installed version of Cassandra. |
| The sstableupgrade command can also be used to downgrade sstables to a |
| previous version.</p> |
| </div> |
| <div class="paragraph"> |
| <p>The snapshot option will only upgrade the specified snapshot. Upgrading |
| snapshots is required before attempting to restore a snapshot taken in a |
| major version older than the major version Cassandra is currently |
| running. This will replace the files in the given snapshot as well as |
| break any hard links to live sstables.</p> |
| </div> |
| <div class="paragraph"> |
| <p>Cassandra must be stopped before this tool is executed, or unexpected |
| results will occur. Note: the script does not verify that Cassandra is |
| stopped.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="usage"><a class="anchor" href="#usage"></a>Usage</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>sstableupgrade <options> <keyspace> <table> [snapshot_name]</p> |
| </div> |
| <table class="tableblock frame-all grid-all stretch"> |
| <colgroup> |
| <col style="width: 50%;"> |
| <col style="width: 50%;"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">--debug</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">display stack traces</p></td> |
| </tr> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">-h,--help</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">display this help message</p></td> |
| </tr> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">-k,--keep-source</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">do not delete the source sstables</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rewrite-tables-to-the-current-cassandra-version"><a class="anchor" href="#rewrite-tables-to-the-current-cassandra-version"></a>Rewrite tables to the current Cassandra version</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Start with a set of sstables in one version of Cassandra:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>ls -al /tmp/cassandra/data/keyspace1/standard1-9695b790a63211e8a6fb091830ac5256/ |
| ... |
| -rw-r--r-- 1 user wheel 348 Aug 22 13:45 keyspace1-standard1-ka-1-CRC.db |
| -rw-r--r-- 1 user wheel 5620000 Aug 22 13:45 keyspace1-standard1-ka-1-Data.db |
| -rw-r--r-- 1 user wheel 10 Aug 22 13:45 keyspace1-standard1-ka-1-Digest.sha1 |
| -rw-r--r-- 1 user wheel 25016 Aug 22 13:45 keyspace1-standard1-ka-1-Filter.db |
| -rw-r--r-- 1 user wheel 480000 Aug 22 13:45 keyspace1-standard1-ka-1-Index.db |
| -rw-r--r-- 1 user wheel 9895 Aug 22 13:45 keyspace1-standard1-ka-1-Statistics.db |
| -rw-r--r-- 1 user wheel 3562 Aug 22 13:45 keyspace1-standard1-ka-1-Summary.db |
| -rw-r--r-- 1 user wheel 79 Aug 22 13:45 keyspace1-standard1-ka-1-TOC.txt</pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>After upgrading the Cassandra version, upgrade the sstables:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>sstableupgrade keyspace1 standard1 |
| Found 1 sstables that need upgrading. |
| Upgrading BigTableReader(path='/var/lib/cassandra/data/keyspace1/standard1-9695b790a63211e8a6fb091830ac5256/keyspace1-standard1-ka-1-Data.db') |
| Upgrade of BigTableReader(path='/var/lib/cassandra/data/keyspace1/standard1-9695b790a63211e8a6fb091830ac5256/keyspace1-standard1-ka-1-Data.db') complete. |
| |
| ls -al /tmp/cassandra/data/keyspace1/standard1-9695b790a63211e8a6fb091830ac5256/ |
| ... |
| drwxr-xr-x 2 user wheel 64 Aug 22 13:48 backups |
| -rw-r--r-- 1 user wheel 292 Aug 22 13:48 mc-2-big-CRC.db |
| -rw-r--r-- 1 user wheel 4599475 Aug 22 13:48 mc-2-big-Data.db |
| -rw-r--r-- 1 user wheel 10 Aug 22 13:48 mc-2-big-Digest.crc32 |
| -rw-r--r-- 1 user wheel 25256 Aug 22 13:48 mc-2-big-Filter.db |
| -rw-r--r-- 1 user wheel 330807 Aug 22 13:48 mc-2-big-Index.db |
| -rw-r--r-- 1 user wheel 10312 Aug 22 13:48 mc-2-big-Statistics.db |
| -rw-r--r-- 1 user wheel 3506 Aug 22 13:48 mc-2-big-Summary.db |
| -rw-r--r-- 1 user wheel 80 Aug 22 13:48 mc-2-big-TOC.txt</pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rewrite-tables-to-the-current-cassandra-version-and-keep-tables-in-old-version"><a class="anchor" href="#rewrite-tables-to-the-current-cassandra-version-and-keep-tables-in-old-version"></a>Rewrite tables to the current Cassandra version, and keep tables in old version</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Again, starting with a set of sstables in one version:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>ls -al /tmp/cassandra/data/keyspace1/standard1-db532690a63411e8b4ae091830ac5256/ |
| ... |
| -rw-r--r-- 1 user wheel 348 Aug 22 13:58 keyspace1-standard1-ka-1-CRC.db |
| -rw-r--r-- 1 user wheel 5620000 Aug 22 13:58 keyspace1-standard1-ka-1-Data.db |
| -rw-r--r-- 1 user wheel 10 Aug 22 13:58 keyspace1-standard1-ka-1-Digest.sha1 |
| -rw-r--r-- 1 user wheel 25016 Aug 22 13:58 keyspace1-standard1-ka-1-Filter.db |
| -rw-r--r-- 1 user wheel 480000 Aug 22 13:58 keyspace1-standard1-ka-1-Index.db |
| -rw-r--r-- 1 user wheel 9895 Aug 22 13:58 keyspace1-standard1-ka-1-Statistics.db |
| -rw-r--r-- 1 user wheel 3562 Aug 22 13:58 keyspace1-standard1-ka-1-Summary.db |
| -rw-r--r-- 1 user wheel 79 Aug 22 13:58 keyspace1-standard1-ka-1-TOC.txt</pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>After upgrading the Cassandra version, upgrade the sstables, retaining |
| the original sstables:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>sstableupgrade keyspace1 standard1 -k |
| Found 1 sstables that need upgrading. |
| Upgrading BigTableReader(path='/var/lib/cassandra/data/keyspace1/standard1-db532690a63411e8b4ae091830ac5256/keyspace1-standard1-ka-1-Data.db') |
| Upgrade of BigTableReader(path='/var/lib/cassandra/data/keyspace1/standard1-db532690a63411e8b4ae091830ac5256/keyspace1-standard1-ka-1-Data.db') complete. |
| |
| ls -al /tmp/cassandra/data/keyspace1/standard1-db532690a63411e8b4ae091830ac5256/ |
| ... |
| drwxr-xr-x 2 user wheel 64 Aug 22 14:00 backups |
| -rw-r--r--@ 1 user wheel 348 Aug 22 13:58 keyspace1-standard1-ka-1-CRC.db |
| -rw-r--r--@ 1 user wheel 5620000 Aug 22 13:58 keyspace1-standard1-ka-1-Data.db |
| -rw-r--r--@ 1 user wheel 10 Aug 22 13:58 keyspace1-standard1-ka-1-Digest.sha1 |
| -rw-r--r--@ 1 user wheel 25016 Aug 22 13:58 keyspace1-standard1-ka-1-Filter.db |
| -rw-r--r--@ 1 user wheel 480000 Aug 22 13:58 keyspace1-standard1-ka-1-Index.db |
| -rw-r--r--@ 1 user wheel 9895 Aug 22 13:58 keyspace1-standard1-ka-1-Statistics.db |
| -rw-r--r--@ 1 user wheel 3562 Aug 22 13:58 keyspace1-standard1-ka-1-Summary.db |
| -rw-r--r--@ 1 user wheel 79 Aug 22 13:58 keyspace1-standard1-ka-1-TOC.txt |
| -rw-r--r-- 1 user wheel 292 Aug 22 14:01 mc-2-big-CRC.db |
| -rw-r--r-- 1 user wheel 4596370 Aug 22 14:01 mc-2-big-Data.db |
| -rw-r--r-- 1 user wheel 10 Aug 22 14:01 mc-2-big-Digest.crc32 |
| -rw-r--r-- 1 user wheel 25256 Aug 22 14:01 mc-2-big-Filter.db |
| -rw-r--r-- 1 user wheel 330801 Aug 22 14:01 mc-2-big-Index.db |
| -rw-r--r-- 1 user wheel 10312 Aug 22 14:01 mc-2-big-Statistics.db |
| -rw-r--r-- 1 user wheel 3506 Aug 22 14:01 mc-2-big-Summary.db |
| -rw-r--r-- 1 user wheel 80 Aug 22 14:01 mc-2-big-TOC.txt</pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rewrite-a-snapshot-to-the-current-cassandra-version"><a class="anchor" href="#rewrite-a-snapshot-to-the-current-cassandra-version"></a>Rewrite a snapshot to the current Cassandra version</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Find the snapshot name:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>nodetool listsnapshots |
| |
| Snapshot Details: |
| Snapshot name Keyspace name Column family name True size Size on disk |
| ... |
| 1534962986979 keyspace1 standard1 5.85 MB 5.85 MB</pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Then rewrite the snapshot:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>sstableupgrade keyspace1 standard1 1534962986979 |
| Found 1 sstables that need upgrading. |
| Upgrading BigTableReader(path='/var/lib/cassandra/data/keyspace1/standard1-5850e9f0a63711e8a5c5091830ac5256/snapshots/1534962986979/keyspace1-standard1-ka-1-Data.db') |
| Upgrade of BigTableReader(path='/var/lib/cassandra/data/keyspace1/standard1-5850e9f0a63711e8a5c5091830ac5256/snapshots/1534962986979/keyspace1-standard1-ka-1-Data.db') complete.</pre> |
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