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Sylvain Lebresne commented on CASSANDRA-4781: --------------------------------------------- Alright, v3 lgtm, +1 (I had in mind of throwing an exception if compaction_compaction_interval < 0 but I realize that it's slightly more complex than I though and not only related to that option so let's leave it like that here and I'll open a separate ticket for improving validation). @Mina you cannot have hit this bug in 1.1.6 because it concerns code that is 1.2.0 only. So if you had a problem upgrading, that would be something else. > Sometimes Cassandra starts compacting system-shema_columns cf repeatedly > until the node is killed > ------------------------------------------------------------------------------------------------- > > Key: CASSANDRA-4781 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4781 > Project: Cassandra > Issue Type: Bug > Affects Versions: 1.2.0 beta 1 > Environment: Ubuntu 12.04, single-node Cassandra cluster > Reporter: Aleksey Yeschenko > Assignee: Yuki Morishita > Fix For: 1.2.0 beta 2 > > Attachments: 4781.txt, 4781-v2.txt, 4781-v3.txt > > > Cassandra starts flushing system-schema_columns cf in a seemingly infinite > loop: > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,804 CompactionTask.java > (line 239) Compacted to > [/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32107-Data.db,]. > 3,827 to 3,827 (~100% of original) bytes for 3 keys at 0.202762MB/s. Time: > 18ms. > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,804 CompactionTask.java > (line 119) Compacting > [SSTableReader(path='/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32107-Data.db')] > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,824 CompactionTask.java > (line 239) Compacted to > [/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32108-Data.db,]. > 3,827 to 3,827 (~100% of original) bytes for 3 keys at 0.182486MB/s. Time: > 20ms. > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,825 CompactionTask.java > (line 119) Compacting > [SSTableReader(path='/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32108-Data.db')] > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,864 CompactionTask.java > (line 239) Compacted to > [/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32109-Data.db,]. > 3,827 to 3,827 (~100% of original) bytes for 3 keys at 0.096045MB/s. Time: > 38ms. > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,864 CompactionTask.java > (line 119) Compacting > [SSTableReader(path='/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32109-Data.db')] > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,894 CompactionTask.java > (line 239) Compacted to > [/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32110-Data.db,]. > 3,827 to 3,827 (~100% of original) bytes for 3 keys at 0.121657MB/s. Time: > 30ms. > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,894 CompactionTask.java > (line 119) Compacting > [SSTableReader(path='/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32110-Data.db')] > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,914 CompactionTask.java > (line 239) Compacted to > [/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32111-Data.db,]. > 3,827 to 3,827 (~100% of original) bytes for 3 keys at 0.202762MB/s. Time: > 18ms. > INFO [CompactionExecutor:7] 2012-10-09 17:55:46,914 CompactionTask.java > (line 119) Compacting > [SSTableReader(path='/var/lib/cassandra/data/system/schema_columns/system-schema_columns-ia-32111-Data.db')] > ......... > Don't know what's causing it. Don't know a way to predictably trigger this > behaviour. It just happens sometimes. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira