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https://issues.apache.org/jira/browse/HBASE-5813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-5813:
-------------------------------
Attachment: D2847.5.patch
mbautin updated the revision "[jira] [HBASE-5813] [89-fb] Retry immediately
after a NotServingRegionException in a multiput".
Reviewers: Liyin, Kannan, khemani, todd, tedyu, stack, JIRA
Adding more logic to handle the case when we get an NSRE but the region
location is the same for one of the regions on a regionserver. It is possible
that that region is being reassigned and the new location has not yet been
written to META. In order to avoid exhausting retries too quickly in that case,
we wait for the appropriate amount of time before the retry.
This will need one more iteration—a request that started as a multi-put might
become a single put during the course of retries, and previous region location
needs to be correctly passed from multi-put to single put.
REVISION DETAIL
https://reviews.facebook.net/D2847
AFFECTED FILES
src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java
> 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, D2847.2.patch, D2847.3.patch,
> D2847.4.patch, D2847.5.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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