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https://issues.apache.org/jira/browse/HBASE-10201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14215472#comment-14215472
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zhangduo commented on HBASE-10201:
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{quote}
Can you briefly describe the addition in patch v7 w.r.t. per store sequence Id
{quote}
I move the map which stores familyName->oldestSeqIdInStore to FSHLog, and when
start a flush, pass the familyNames which will be flushed to HLog.
And when replay, skip WAL cells with seqId per store instead of a single seqId
of region.
{quote}
Why is main() needed in the unit test ?
{quote}
It is used to benchmark a real cluster
> 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
> Components: wal
> Reporter: Ted Yu
> Assignee: zhangduo
> Priority: Critical
> Fix For: 2.0.0, 0.98.9, 0.99.2
>
> Attachments: 3149-trunk-v1.txt, HBASE-10201-0.98.patch,
> HBASE-10201-0.98_1.patch, HBASE-10201-0.98_2.patch, HBASE-10201-0.99.patch,
> HBASE-10201.patch, HBASE-10201_1.patch, HBASE-10201_2.patch,
> HBASE-10201_3.patch, HBASE-10201_4.patch, HBASE-10201_5.patch,
> HBASE-10201_6.patch, HBASE-10201_7.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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