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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2014/07/19 00:46:12 UTC
[jira] [Comment Edited] (HBASE-11546) Backport HBASE-11059 to 0.98
[ https://issues.apache.org/jira/browse/HBASE-11546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14067024#comment-14067024 ]
Andrew Purtell edited comment on HBASE-11546 at 7/18/14 10:44 PM:
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This seems like a big change to attempt to backport to a stable branch.
Without a backport of HBASE-10569, which I don't think we can backport to a stable branch, meta updates after this patch is applied in the current state would happen via a remote RPC call in a synchronized block as per my understanding, which won't be ok.
Also, on any minor upgrade e.g. 0.98.4 to 0.98.5, it should be possible to do a rolling restart from .4 to .5. This change would seems to require *two* rolling restarts, and on the second restart the ordering of the master restart will be important.
Let's take a step back. Why is this change needed in 0.98?
was (Author: apurtell):
This seems like a big change to attempt to backport to a stable branch.
Without a backport of HBASE-10569, which I don't think we can backport to a stable branch, meta updates are currently done using a remote RPC call in a synchronized block as per my understanding, which won't be ok.
Also, on any minor upgrade e.g. 0.98.4 to 0.98.5, it should be possible to do a rolling restart from .4 to .5. This change would seems to require *two* rolling restarts, and on the second restart the ordering of the master restart will be important.
Let's take a step back. Why is this change needed in 0.98?
> Backport HBASE-11059 to 0.98
> ----------------------------
>
> Key: HBASE-11546
> URL: https://issues.apache.org/jira/browse/HBASE-11546
> Project: HBase
> Issue Type: Task
> Reporter: Virag Kothari
>
> Discuss concerns about backporting HBASE-11059 to 0.98
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