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https://issues.apache.org/jira/browse/HBASE-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13728717#comment-13728717
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Lars Hofhansl commented on HBASE-5954:
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HBASE-7801 and HBASE-8375 put the right client APIs in place, and in 0.95+ we
have the Hadoop1/Hadoop2 modules to avoid reflection hell.
This is then just a matter of:
# Instantiate a Writer with sync-on-close enabled
# pass the fsync through to our log syncer and issue the sync when requested
I think we would not allow pairing fsync with asynchronous sync'ing (the
current API would not support it anyway).
I'll see if I can find some time next week. Although my guess is that most
folks want global sync-on-close and global sync-behind-writes on the HDFS
cluster backing HBase.
> Allow proper fsync support for HBase
> ------------------------------------
>
> Key: HBASE-5954
> URL: https://issues.apache.org/jira/browse/HBASE-5954
> Project: HBase
> Issue Type: Improvement
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Priority: Critical
> Fix For: 0.98.0, 0.95.2
>
> Attachments: 5954-trunk-hdfs-trunk.txt, 5954-trunk-hdfs-trunk-v2.txt,
> 5954-trunk-hdfs-trunk-v3.txt, 5954-trunk-hdfs-trunk-v4.txt,
> 5954-trunk-hdfs-trunk-v5.txt, 5954-trunk-hdfs-trunk-v6.txt, hbase-hdfs-744.txt
>
>
> At least get recommendation into 0.96 doc and some numbers running w/ this
> hdfs feature enabled.
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