[ https://issues.apache.org/jira/browse/CASSANDRA-7272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jeremiah Jordan updated CASSANDRA-7272: --------------------------------------- Summary: Add "Major" Compaction to LCS and split sstables during STCS major compaction (was: Add "Major" Compaction to LCS ) > Add "Major" Compaction to LCS and split sstables during STCS major compaction > ----------------------------------------------------------------------------- > > Key: CASSANDRA-7272 > URL: https://issues.apache.org/jira/browse/CASSANDRA-7272 > Project: Cassandra > Issue Type: Improvement > Reporter: T Jake Luciani > Assignee: Marcus Eriksson > Priority: Minor > Labels: compaction, docs-impacting, lcs > Fix For: 2.2.0 beta 1 > > > LCS has a number of minor issues (maybe major depending on your perspective). > LCS is primarily used for wide rows so for instance when you repair data in > LCS you end up with a copy of an entire repaired row in L0. Over time if you > repair you end up with multiple copies of a row in L0 - L5. This can make > predicting disk usage confusing. > Another issue is cleaning up tombstoned data. If a tombstone lives in level > 1 and data for the cell lives in level 5 the data will not be reclaimed from > disk until the tombstone reaches level 5. > I propose we add a "major" compaction for LCS that forces consolidation of > data to level 5 to address these. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org