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https://issues.apache.org/jira/browse/CASSANDRA-10962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Petrov updated CASSANDRA-10962:
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Description:
If auto_snapshot is set to true in cassandra.yaml, each time you restart
Cassandra, a snapshot is created for system.compactions_in_progress as the
table is truncated at cassandra start.
However as datas in this table are temporary, Cassandra should not create
snapshot for this table (or maybe even for system.* tables). This will be
coherent with the fact that "nodetool listsnapshots" doesn't even list this
table.
Exemple:
{code}
$ nodetool listsnapshots | grep compactions
$ ls -lh
system/compactions_in_progress-55080ab05d9c388690a4acb25fe1f77b/snapshots/
total 16K
drwxr-xr-x 2 cassandra cassandra 4.0K Nov 30 13:12
1448885530280-compactions_in_progress
drwxr-xr-x 2 cassandra cassandra 4.0K Dec 7 15:36
1449498977181-compactions_in_progress
drwxr-xr-x 2 cassandra cassandra 4.0K Dec 14 18:20
1450113621506-compactions_in_progress
drwxr-xr-x 2 cassandra cassandra 4.0K Jan 4 12:53
1451908396364-compactions_in_progress
{code}
was:
If auto_snapshot is set to true in cassandra.yaml, each time you restart
Cassandra, a snapshot is created for system.compactions_in_progress as the
table is truncated at cassandra start.
However as datas in this table are temporary, Cassandra should not create
snapshot for this table (or maybe even for system.* tables). This will be
coherent with the fact that "nodetool listsnapshots" doesn't even list this
table.
Exemple:
$ nodetool listsnapshots | grep compactions
$ ls -lh
system/compactions_in_progress-55080ab05d9c388690a4acb25fe1f77b/snapshots/
total 16K
drwxr-xr-x 2 cassandra cassandra 4.0K Nov 30 13:12
1448885530280-compactions_in_progress
drwxr-xr-x 2 cassandra cassandra 4.0K Dec 7 15:36
1449498977181-compactions_in_progress
drwxr-xr-x 2 cassandra cassandra 4.0K Dec 14 18:20
1450113621506-compactions_in_progress
drwxr-xr-x 2 cassandra cassandra 4.0K Jan 4 12:53
1451908396364-compactions_in_progress
> Cassandra should not create snapshot at restart for compactions_in_progress
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-10962
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10962
> Project: Cassandra
> Issue Type: Bug
> Environment: Ubuntu 14.04.3 LTS
> Reporter: FACORAT
> Priority: Minor
>
> If auto_snapshot is set to true in cassandra.yaml, each time you restart
> Cassandra, a snapshot is created for system.compactions_in_progress as the
> table is truncated at cassandra start.
> However as datas in this table are temporary, Cassandra should not create
> snapshot for this table (or maybe even for system.* tables). This will be
> coherent with the fact that "nodetool listsnapshots" doesn't even list this
> table.
> Exemple:
> {code}
> $ nodetool listsnapshots | grep compactions
> $ ls -lh
> system/compactions_in_progress-55080ab05d9c388690a4acb25fe1f77b/snapshots/
> total 16K
> drwxr-xr-x 2 cassandra cassandra 4.0K Nov 30 13:12
> 1448885530280-compactions_in_progress
> drwxr-xr-x 2 cassandra cassandra 4.0K Dec 7 15:36
> 1449498977181-compactions_in_progress
> drwxr-xr-x 2 cassandra cassandra 4.0K Dec 14 18:20
> 1450113621506-compactions_in_progress
> drwxr-xr-x 2 cassandra cassandra 4.0K Jan 4 12:53
> 1451908396364-compactions_in_progress
> {code}
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