*: improve compaction documentation #9601
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xiang90
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Apr 20, 2018
| @@ -6,7 +6,17 @@ An etcd cluster needs periodic maintenance to remain reliable. Depending on an e | |||
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| All etcd maintenance manages storage resources consumed by the etcd keyspace. Failure to adequately control the keyspace size is guarded by storage space quotas; if an etcd member runs low on space, a quota will trigger cluster-wide alarms which will put the system into a limited-operation maintenance mode. To avoid running out of space for writes to the keyspace, the etcd keyspace history must be compacted. Storage space itself may be reclaimed by defragmenting etcd members. Finally, periodic snapshot backups of etcd member state makes it possible to recover any unintended logical data loss or corruption caused by operational error. | |||
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| ## History compaction | |||
| ## History compaction: Raft | |||
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raft log retention. do not confuse our users here. compaction should always mean compaction on db.
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Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
Codecov Report
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## master #9601 +/- ##
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Coverage ? 69.23%
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Files ? 369
Lines ? 33725
Branches ? 0
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Hits ? 23349
Misses ? 8670
Partials ? 1706Continue to review full report at Codecov.
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@gyuho thanks for working on this! LGTM |
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lgtm |
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Fix #8018.
Address #7607.
#7607 needs more monitoring doc.
@mitake @yudai