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https://issues.apache.org/jira/browse/HBASE-4052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066834#comment-13066834
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ramkrishna.s.vasudevan commented on HBASE-4052:
-----------------------------------------------
@Ted, one small correction in the patch that was applied
Actually the patch catches the NotServingRegionException as RemoteException and
then
checks for the instanceof NotServingRegionException .
{noformat}
catch (Throwable t) {
if (t instanceof RemoteException) {
t = ((RemoteException)t).unwrapRemoteException();
}
{noformat}
But the latest AssignmentManager.java in trunk shows that it was applied in
{noformat}
catch (NotServingRegionException nsre) {
LOG.info("Server " + server + " returned " + nsre + " for " +
region.getEncodedName());
// Presume that master has stale data. Presume remote side just split.
// Presume that the split message when it comes in will fix up the
master's
// in memory cluster state.
if (checkIfRegionBelongsToDisabling(region)) {
{noformat}
So the scenario of partial disabling is failing to recover back to DISABLED
state.
Can you please check and reapply the patch.
> Enabling a table after master switch does not allow table scan, throwing
> NotServingRegionException
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-4052
> URL: https://issues.apache.org/jira/browse/HBASE-4052
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.3
> Environment: Linux
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.90.4
>
> Attachments: 4052.txt, Disabled.bmp, Disabling-1.bmp,
> Disabling-2.bmp, HBASE-4052-1-0.90_1.patch, HBASE-4052-1-_TestCode.patch,
> HBASE-4052-1-trunk_1.patch, HBASE-4052.patch,
> TestMasterRestartAfterDisablingTable.java
>
>
> Following is the scenario:
> Start RS and Active and standby masters
> Create table and insert data.
> Disable the table.
> Stop the active master and switch to the standby master.
> Now enable the table.
> Do a scan on the enabled table.
> NotServingRegionException is Thrown.
> But the same works well when we dont switch the master.
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