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From "zhangduo (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10201) Port 'Make flush decisions per column family' to trunk
Date Mon, 27 Oct 2014 09:12:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

zhangduo updated HBASE-10201:
    Attachment: HBASE-10201.patch

Sorry I was wrong, getSequenceId in HLogKey will block until logSeqNum is set, so I can get
the sequence id before syncing WAL. But I do not want to change the order when mutate, so
I add a method to record oldestSequenceId, which is called after WAL appendNoSync and before
releasing updateLock.

The patch passed all unit tests on my machine.

> Port 'Make flush decisions per column family' to trunk
> ------------------------------------------------------
>                 Key: HBASE-10201
>                 URL: https://issues.apache.org/jira/browse/HBASE-10201
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>         Attachments: 3149-trunk-v1.txt, HBASE-10201-0.98.patch, HBASE-10201-0.98_1.patch,
HBASE-10201-0.98_2.patch, HBASE-10201.patch
> Currently the flush decision is made using the aggregate size of all column families.
When large and small column families co-exist, this causes many small flushes of the smaller
CF. We need to make per-CF flush decisions.

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