Repository: cassandra Updated Branches: refs/heads/trunk 2046c30ad -> c2c43f814
http://git-wip-us.apache.org/repos/asf/cassandra/blob/c2c43f81/doc/source/tools/sstable/sstableverify.rst ---------------------------------------------------------------------- diff --git a/doc/source/tools/sstable/sstableverify.rst b/doc/source/tools/sstable/sstableverify.rst new file mode 100644 index 0000000..dad3f44 --- /dev/null +++ b/doc/source/tools/sstable/sstableverify.rst @@ -0,0 +1,91 @@ +.. Licensed to the Apache Software Foundation (ASF) under one +.. or more contributor license agreements. See the NOTICE file +.. distributed with this work for additional information +.. regarding copyright ownership. The ASF licenses this file +.. to you 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. + +sstableverify +------------- + +Check sstable(s) for errors or corruption, for the provided table. + +ref: https://issues.apache.org/jira/browse/CASSANDRA-5791 + +Cassandra must be stopped before this tool is executed, or unexpected results will occur. Note: the script does not verify that Cassandra is stopped. + +Usage +^^^^^ +sstableverify <options> <keyspace> <table> + +=================================== ================================================================================ +--debug display stack traces +-e, --extended extended verification +-h, --help display this help message +-v, --verbose verbose output +=================================== ================================================================================ + +Basic Verification +^^^^^^^^^^^^^^^^^^ + +This is the basic verification. It is not a very quick process, and uses memory. You might need to increase your memory settings if you have many sstables. + +Example:: + + sstableverify keyspace eventlog + Verifying BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') (7.353MiB) + Deserializing sstable metadata for BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') + Checking computed hash of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') + Verifying BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') (3.775MiB) + Deserializing sstable metadata for BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') + Checking computed hash of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') + +Extended Verification +^^^^^^^^^^^^^^^^^^^^^ + +During an extended verification, the individual values will be validated for errors or corruption. This of course takes more time. + +Example:: + + root@DC1C1:/# sstableverify -e keyspace eventlog + WARN 14:08:06,255 Only 33.096GiB free across all data volumes. Consider adding more capacity to your cluster or removing obsolete snapshots + Verifying BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') (7.353MiB) + Deserializing sstable metadata for BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') + Checking computed hash of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') + Extended Verify requested, proceeding to inspect values + Verify of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-32-big-Data.db') succeeded. All 33211 rows read successfully + Verifying BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') (3.775MiB) + Deserializing sstable metadata for BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') + Checking computed hash of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') + Extended Verify requested, proceeding to inspect values + Verify of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-37-big-Data.db') succeeded. All 17068 rows read successfully + +Corrupted File +^^^^^^^^^^^^^^ + +Corrupted files are listed if they are detected by the script. + +Example:: + + sstableverify keyspace eventlog + Verifying BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-40-big-Data.db') (7.416MiB) + Deserializing sstable metadata for BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-40-big-Data.db') + Checking computed hash of BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-40-big-Data.db') + Error verifying BigTableReader(path='/var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-40-big-Data.db'): Corrupted: /var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-40-big-Data.db + +A similar (but less verbose) tool will show the suggested actions:: + + nodetool verify keyspace eventlog + error: Invalid SSTable /var/lib/cassandra/data/keyspace/eventlog-6365332094dd11e88f324f9c503e4753/mc-40-big-Data.db, please force repair + + + --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org
