[jira] [Updated] (HBASE-6152) Split abort is not handled properly

2012-06-02 Thread ramkrishna.s.vasudevan (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HBASE-6152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ramkrishna.s.vasudevan updated HBASE-6152:
--

Attachment: HBASE-6152_0.94.patch

Test case to reproduce this issue.  Infact this will happen in 0.92.0 and 
0.92.1 and not in the latest code in 0.92 or 0.94.
Now the current code 
{code}
if (rs.isSplit() || rs.isSplitting()) {
{code}
does not have this line.  So it should not create a problem here.  It was 
removed as part of HBASE-6070. Prior to this it could have happened.  The same 
has been reproduced in the testcase.

 Split abort is not handled properly
 ---

 Key: HBASE-6152
 URL: https://issues.apache.org/jira/browse/HBASE-6152
 Project: HBase
  Issue Type: Bug
Affects Versions: 0.92.0
Reporter: Devaraj Das
Assignee: Devaraj Das
 Attachments: HBASE-6152_0.94.patch


 I ran into this:
 1. RegionServer started to split a region(R), but the split was taking a long 
 time, and hence the split was aborted
 2. As part of cleanup, the RS deleted the ZK node that it created initially 
 for R
 3. The master (AssignmentManager) noticed the node deletion, and made R 
 offline
 4. The RS recovered from the failure, and at some point of time, tried to do 
 the split again.
 5. The master got an event RS_ZK_REGION_SPLIT but the server gave an error 
 like - Received SPLIT for region R from server RS but it doesn't exist 
 anymore,..
 6. The RS apparently did the split successfully this time, but is stuck on 
 the master to delete the znode for the region. It kept on saying - 
 org.apache.hadoop.hbase.regionserver.SplitTransaction: Still waiting on the 
 master to process the split for R and it was stuck there forever. 

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[jira] [Updated] (HBASE-6152) Split abort is not handled properly

2012-06-01 Thread Devaraj Das (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HBASE-6152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Devaraj Das updated HBASE-6152:
---

Description: 
I ran into this:
1. RegionServer started to split a region(R), but the split was taking a long 
time, and hence the split was aborted
2. As part of cleanup, the RS deleted the ZK node that it created initially for 
R
3. The master (AssignmentManager) noticed the node deletion, and made R offline
4. The RS recovered from the failure, and at some point of time, tried to do 
the split again.
5. The master got an event RS_ZK_REGION_SPLIT but the server gave an error like 
- Received SPLIT for region R from server RS but it doesn't exist anymore,..
6. The RS apparently did the split successfully this time, but is stuck on the 
master to delete the znode for the region. It kept on saying - 
org.apache.hadoop.hbase.regionserver.SplitTransaction: Still waiting on the 
master to process the split for R and it was stuck there forever. 

  was:
I ran into this:
1. RegionServer started to split a region(R), but the split was taking a long 
time, and hence the split was aborted
2. As part of cleanup, the RS deleted the ZK node that it created initially for 
R
3. The master (AssignmentManager) noticed the node deletion, and made R offline
4. The RS recovered from the failure, and at some point of time, tried to do 
the split again.
5. The master got an event RS_ZK_REGION_SPLITTING but the server gave an error 
like - Received SPLIT for region R from server RS but it doesn't exist 
anymore,..
6. The RS apparently did the split successfully this time, but is stuck on the 
master to delete the znode for the region. It kept on saying - 
org.apache.hadoop.hbase.regionserver.SplitTransaction: Still waiting on the 
master to process the split for R and it was stuck there forever. 


 Split abort is not handled properly
 ---

 Key: HBASE-6152
 URL: https://issues.apache.org/jira/browse/HBASE-6152
 Project: HBase
  Issue Type: Bug
Affects Versions: 0.92.0
Reporter: Devaraj Das
Assignee: Devaraj Das

 I ran into this:
 1. RegionServer started to split a region(R), but the split was taking a long 
 time, and hence the split was aborted
 2. As part of cleanup, the RS deleted the ZK node that it created initially 
 for R
 3. The master (AssignmentManager) noticed the node deletion, and made R 
 offline
 4. The RS recovered from the failure, and at some point of time, tried to do 
 the split again.
 5. The master got an event RS_ZK_REGION_SPLIT but the server gave an error 
 like - Received SPLIT for region R from server RS but it doesn't exist 
 anymore,..
 6. The RS apparently did the split successfully this time, but is stuck on 
 the master to delete the znode for the region. It kept on saying - 
 org.apache.hadoop.hbase.regionserver.SplitTransaction: Still waiting on the 
 master to process the split for R and it was stuck there forever. 

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