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https://issues.apache.org/jira/browse/HBASE-1947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12772747#action_12772747 ]
Jean-Daniel Cryans commented on HBASE-1947:
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Ryan reviewed this patch and wants me to clear the compaction message. I will commit the same patch but with:
{code}
- // Startup a compaction early if one is needed, if region has references.
- if (region.hasReferences()) {
+ // Startup a compaction early if one is needed, if region has references
+ // or it a store has too many store files
+ if (region.hasReferences() || region.hasTooManyStoreFiles()) {
this.compactSplitThread.compactionRequested(region,
- "Region has references on open");
+ region.hasReferences() ? "Region has references on open" :
+ "Region has too many store files");
{code}
If HBase starts/stops often in less than 24 hours, you end up with lots of store files
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Key: HBASE-1947
URL:
https://issues.apache.org/jira/browse/HBASE-1947Project: Hadoop HBase
Issue Type: Improvement
Affects Versions: 0.20.1
Reporter: Jean-Daniel Cryans
Fix For: 0.20.2, 0.21.0
Attachments: HBASE-1947.patch
Since we don't compact on open and close of regions, all regions that have edits will do a flush when the cluster is stopped so that if you do it a couple of times in a row it's easy to get more than 10 store files and it won't be compacted until the next day. On open, we should check that number and compact if needed.
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