[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tianying Chang updated HBASE-6070: -- @stack Thanks. I want to get some second opinion from others. I guess it is better to do this by opening a separate jira. I have created HBASE-7058 for this purpose. If other people found no other potential problem, I can provide patch. AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.94.1, 0.96.0 Attachments: HBASE-6070_0.92_1.patch, HBASE-6070_0.92.patch, HBASE-6070_0.94_1.patch, HBASE-6070_0.94.patch, HBASE-6070_trunk_1.patch, HBASE-6070_trunk.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[
https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tianying Chang updated HBASE-6070:
--
@ram,
I am reading the code related to region split. I feel that this code below in
AssignmentManager seems to be dead code. Because 1) I don't see any place that
callls to update the regionState to be State.SPLIT. 2) for scenario when region
has already been split and RS crashed, ServerShutdownHandler should have
already taken care of it. Am I missing something here. Thanks
if (rs.isSplit()) {
LOG.debug(Ephemeral node deleted, regionserver crashed?, +
clearing from RIT; rs= + rs);
regionOffline(rs.getRegion());
AM.nodeDeleted and SSH races creating problems for regions under SPLIT
--
Key: HBASE-6070
URL: https://issues.apache.org/jira/browse/HBASE-6070
Project: HBase
Issue Type: Bug
Affects Versions: 0.92.1, 0.94.0
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
Fix For: 0.92.2, 0.94.1, 0.96.0
Attachments: HBASE-6070_0.92_1.patch, HBASE-6070_0.92.patch,
HBASE-6070_0.94_1.patch, HBASE-6070_0.94.patch, HBASE-6070_trunk_1.patch,
HBASE-6070_trunk.patch
We tried to address the problems in Master restart and RS restart while SPLIT
region is in progress as part of HBASE-5806.
While doing some more we found still there is one race condition.
- Split has just started and the znode is in RS_SPLIT state.
- RS goes down.
- First call back for SSH comes.
- As part of the fix for HBASE-5806 SSH knows that some region is in RIT.
- But now nodeDeleted event comes for the SPLIt node and there we try to
delete the RIT.
- After this we try to see in the SSH whether any node is in RIT. As we
dont find the region in RIT the region is never assigned.
When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So
we missed it. Now we found that. Will come up with a patch shortly.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
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[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Hadoop Flags: Reviewed AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch, HBASE-6070_trunk_1.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Resolution: Fixed Status: Resolved (was: Patch Available) AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch, HBASE-6070_trunk_1.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_0.94.patch AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.94.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_0.92.patch AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.94.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_trunk.patch Uploaded patches for all branches. Tested in cluster including scenarios for HBASE-5806. Pls review and provide your comments. AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.94.patch, HBASE-6070_trunk.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Status: Patch Available (was: Open) AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.94.0, 0.92.1 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.94.patch, HBASE-6070_trunk.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Status: Open (was: Patch Available) AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.94.0, 0.92.1 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_trunk.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_0.92_1.patch AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_trunk.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_0.94_1.patch AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch, HBASE-6070_trunk_1.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Status: Patch Available (was: Open) AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.94.0, 0.92.1 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch, HBASE-6070_trunk_1.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_trunk_1.patch Updated patches fixing the comments. I tried running the failed testcase. It passed every time. AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch, HBASE-6070_trunk_1.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: (was: HBASE-6070_trunk_1.patch) AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
[jira] [Updated] (HBASE-6070) AM.nodeDeleted and SSH races creating problems for regions under SPLIT
[ https://issues.apache.org/jira/browse/HBASE-6070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ramkrishna.s.vasudevan updated HBASE-6070: -- Attachment: HBASE-6070_trunk_1.patch Just reattaching the patch. AM.nodeDeleted and SSH races creating problems for regions under SPLIT -- Key: HBASE-6070 URL: https://issues.apache.org/jira/browse/HBASE-6070 Project: HBase Issue Type: Bug Affects Versions: 0.92.1, 0.94.0 Reporter: ramkrishna.s.vasudevan Assignee: ramkrishna.s.vasudevan Fix For: 0.92.2, 0.96.0, 0.94.1 Attachments: HBASE-6070_0.92.patch, HBASE-6070_0.92_1.patch, HBASE-6070_0.94.patch, HBASE-6070_0.94_1.patch, HBASE-6070_trunk.patch, HBASE-6070_trunk_1.patch We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806. While doing some more we found still there is one race condition. - Split has just started and the znode is in RS_SPLIT state. - RS goes down. - First call back for SSH comes. - As part of the fix for HBASE-5806 SSH knows that some region is in RIT. - But now nodeDeleted event comes for the SPLIt node and there we try to delete the RIT. - After this we try to see in the SSH whether any node is in RIT. As we dont find the region in RIT the region is never assigned. When we fixed HBASE-5806 step 6 happened first and then step 5 happened. So we missed it. Now we found that. Will come up with a patch shortly. -- 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
