[
https://issues.apache.org/jira/browse/HBASE-6032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13283098#comment-13283098
]
Hadoop QA commented on HBASE-6032:
----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12529563/6032-ports-5987.txt
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 15 new or modified tests.
+1 hadoop23. The patch compiles against the hadoop 0.23.x profile.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
-1 findbugs. The patch appears to introduce 36 new Findbugs (version
1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in .
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/1992//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/1992//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/1992//console
This message is automatically generated.
> Port HFileBlockIndex improvement from HBASE-5987
> ------------------------------------------------
>
> Key: HBASE-6032
> URL: https://issues.apache.org/jira/browse/HBASE-6032
> Project: HBase
> Issue Type: Task
> Reporter: Zhihong Yu
> Attachments: 6032-ports-5987.txt
>
>
> Excerpt from HBASE-5987:
> First, we propose to lookahead for one more block index so that the
> HFileScanner would know the start key value of next data block. So if the
> target key value for the scan(reSeekTo) is "smaller" than that start kv of
> next data block, it means the target key value has a very high possibility in
> the current data block (if not in current data block, then the start kv of
> next data block should be returned. +Indexing on the start key has some
> defects here+) and it shall NOT query the HFileBlockIndex in this case. On
> the contrary, if the target key value is "bigger", then it shall query the
> HFileBlockIndex. This improvement shall help to reduce the hotness of
> HFileBlockIndex and avoid some unnecessary IdLock Contention or Index Block
> Cache lookup.
> This JIRA is to port the fix to HBase trunk, etc.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
