[
https://issues.apache.org/jira/browse/HBASE-18796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16178644#comment-16178644
]
Abhishek Singh Chouhan commented on HBASE-18796:
------------------------------------------------
I believe that branch-1.3's scan code doesn't suffer from the bug that the
addendum is solving and hence should not be needed there. branch-1.3 uses
ClientSmallReversedScanner for the scan, the loadCache method in
ClientSmallReversedScanner doesn't modify the passed in scan object's caching,
which is the case in later branches in ClientScanner.java
if (scan.getLimit() >0) {
int newLimit = scan.getLimit() - numberOfCompleteRows;
assert newLimit >=0;
scan.setLimit(newLimit);
}
The original change however still applies to branch-1.3. I ran the test suite
locally and the tests pass for me.
Will commit the original change to branch-1.3 later today unless objections.
> Admin#isTableAvailable returns incorrect result before daughter regions are
> opened
> ----------------------------------------------------------------------------------
>
> Key: HBASE-18796
> URL: https://issues.apache.org/jira/browse/HBASE-18796
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.3.1
> Reporter: Abhishek Singh Chouhan
> Assignee: Abhishek Singh Chouhan
> Fix For: 2.0.0, 3.0.0, 1.4.0, 1.3.2, 1.5.0
>
> Attachments: HBASE-18796-addendum.branch-1.patch,
> HBASE-18796-addendum.master.patch, HBASE-18796.branch-1.001.patch,
> HBASE-18796.branch-1.001.patch, HBASE-18796.branch-1.002.patch,
> HBASE-18796.branch-1.003.patch, HBASE-18796.master.001.patch
>
>
> Admin#isTableAvailable checks if it can getServerName for the meta entries it
> reads. During the time of split server location are added to the meta entries
> in MetaTableAccessor#splitRegion although the description of the method says
> "Does not add the location information to the daughter regions since they are
> not open yet.". At this point during the split daughter regions are not
> actually open, so we can get to a state where parent is offline, daughters
> are not yet open but isTableAvailable returns true.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
