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https://issues.apache.org/jira/browse/HBASE-7502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545505#comment-13545505
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Ted Yu edited comment on HBASE-7502 at 1/6/13 10:25 PM:
--------------------------------------------------------
Nice finding, Himanshu. Some minor comments:
{code}
+ public List<RegionServerThread> getLiveRegionServers() {
+ return hbaseCluster.getLiveRegionServerThreads();
{code}
Since List of RegionServerThread is returned, I think the new method should be
named getLiveRegionServerThreads()
{code}
+ regionServerAlive = true;
+ Thread.sleep(100);
{code}
The sleep() is used to wait for rs to be out of live region server list. I
think 10 ms can be used instead of 100ms.
was (Author: yuzhih...@gmail.com):
Nice finding, Himanshu. Some minor comments:
{code}
+ public List<RegionServerThread> getLiveRegionServers() {
+ return hbaseCluster.getLiveRegionServerThreads();
{code}
Since List of RegionServerThread is returned, I think the new method should be
named getLiveRegionServerThreads()
{code}
+ regionServerAlive = true;
+ Thread.sleep(100);
{code}
Why is the sleep() needed ?
> TestScannerTimeout fails on snapshot branch
> -------------------------------------------
>
> Key: HBASE-7502
> URL: https://issues.apache.org/jira/browse/HBASE-7502
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: hbase-7290
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: hbase-7290
>
> Attachments: HBASE-7502-v1.patch
>
>
> TestScannerTimeout#test3686a fails consistently on snapshot branch. This is
> because there is an increase in the number of watches on the rs znode and its
> deletion takes more time now. The repercussion is that when test3686a starts,
> it ensures that there are two regionservers and it counts the aborted
> regionserver as a live one. While processing, it kills one of its server, and
> also the znode of the previously aborted server expires. Overall effect is
> there are no regionservers now, and client hangs.
> {code}
> Error Message
> test timed out after 300000 milliseconds
> Stacktrace
> java.lang.Exception: test timed out after 300000 milliseconds
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.close(HConnectionManager.java:1769)
> at org.apache.hadoop.hbase.client.HTable.close(HTable.java:961)
> at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:180)
> at org.apache.hadoop.hbase.client.MetaScanner.access$000(MetaScanner.java:54)
> at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:133)
> at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:130)
> at
> org.apache.hadoop.hbase.client.HConnectionManager.execute(HConnectionManager.java:360)
> {code}
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