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Posted to issues@hbase.apache.org by "Phabricator (JIRA)" <ji...@apache.org> on 2012/05/05 00:53:49 UTC
[jira] [Commented] (HBASE-5813) Retry immediately after a
NotServingRegionException in a multiput
[ https://issues.apache.org/jira/browse/HBASE-5813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268780#comment-13268780 ]
Phabricator commented on HBASE-5813:
------------------------------------
Kannan has commented on the revision "[jira] [HBASE-5813] [89-fb] Retry immediately after a NotServingRegionException in a multiput".
INLINE COMMENTS
src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java:1707 for efficiency, let's populate this map only if msWaitOnSameRegionLoc > 0.
That for most common cases, i.e. the 1 attempt case, we avoid building this map.
src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java:1765 could you explain this change: why don't we add these failed requests to the "failed" list?
REVISION DETAIL
https://reviews.facebook.net/D2847
> Retry immediately after a NotServingRegionException in a multiput
> -----------------------------------------------------------------
>
> Key: HBASE-5813
> URL: https://issues.apache.org/jira/browse/HBASE-5813
> Project: HBase
> Issue Type: Improvement
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Attachments: D2847.1.patch, D2847.10.patch, D2847.11.patch, D2847.12.patch, D2847.2.patch, D2847.3.patch, D2847.4.patch, D2847.5.patch, D2847.6.patch, D2847.7.patch, D2847.8.patch, D2847.9.patch
>
>
> After we get some errors in a multiput we invalidate the region location cache and wait for the configured time interval according to the backoff policy. However, if all "errors" in multiput processing were NotServingRegionExceptions, we don't really need to wait. We can retry immediately.
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