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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12870) "Major compaction triggered" and "Skipping major compaction" messages lack the region information
Date Tue, 02 May 2017 17:54:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15993393#comment-15993393

Andrew Purtell commented on HBASE-12870:

lgtm. We are changing a log line format but it's DEBUG level so can't be expected to be stable
for scraping. Let me run some local checks and then commit. Thanks [~ckulkarni]

> "Major compaction triggered" and "Skipping major compaction" messages lack the region
> -------------------------------------------------------------------------------------------------
>                 Key: HBASE-12870
>                 URL: https://issues.apache.org/jira/browse/HBASE-12870
>             Project: HBase
>          Issue Type: Improvement
>          Components: Compaction
>    Affects Versions: 1.3.1
>            Reporter: Hari Krishna Dara
>            Assignee: Chinmay Kulkarni
>              Labels: compaction, patch
>             Fix For: 1.3.2
>         Attachments: HBASE-12870.patch
> The below messages coming from {{RatioBasedCompactionPolicy}} log the default {{.toString()}}
output of itself, which is not useful:
> {noformat}
> 2015-01-16 06:15:07,166 DEBUG org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy:
Major compaction triggered on store org.apache.hadoop.hbase.regionserver.compactions.ExploringCompactionPolicy@4acab1f5;
time since last major compaction 339994249ms
> {noformat}
> {noformat}
> 2015-01-16 09:49:12,872 DEBUG org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy:
Skipping major compaction of org.apache.hadoop.hbase.regionserver.compactions.ExploringCompactionPolicy@7b9f47bb
because one (major) compacted file only and oldestTime 6795587394ms is < ttl=15552000000
> {noformat}
> It should log the store/region information instead. Unfortunately, this information seems
to be unavailable at this point, so more context needs to be supplied while calling {{RatioBasedCompactionPolicy.isMajorCompaction()}}.

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