[jira] [Commented] (HBASE-5689) Skipping RecoveredEdits may cause data loss

2012-04-05 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-5689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247960#comment-13247960 ] Ming Ma commented on HBASE-5689: Really nice finding and fix. Some comments regarding perf

[jira] [Commented] (HBASE-3996) Support multiple tables and scanners as input to the mapper in map/reduce jobs

2012-03-28 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13240765#comment-13240765 ] Ming Ma commented on HBASE-3996: Appreciate if anyone can clarify the type of applications

[jira] [Commented] (HBASE-5329) addRowLock() may allocate duplicate lock id, causing the client to be blocked

2012-02-03 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-5329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=1316#comment-1316 ] Ming Ma commented on HBASE-5329: It seems addScanner() might have similar issue.

[jira] [Commented] (HBASE-5140) TableInputFormat subclass to allow N number of splits per region during MR jobs

2012-01-06 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-5140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13181582#comment-13181582 ] Ming Ma commented on HBASE-5140: Is it the same as HBASE-4063? > TableInp

[jira] [Commented] (HBASE-5094) The META can hold an entry for a region with a different server name from the one actually in the AssignmentManager thus making the region inaccessible.

2012-01-04 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-5094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13180214#comment-13180214 ] Ming Ma commented on HBASE-5094: Ram, it turns out that my patch which is based on an earl

[jira] [Commented] (HBASE-5109) Fix TestAvroServer so that it waits properly for the modifyTable operation to complete

2012-01-04 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-5109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179794#comment-13179794 ] Ming Ma commented on HBASE-5109: Thanks, Ted. Then, it is mostly taken cared of. Just want

[jira] [Commented] (HBASE-5094) The META can hold an entry for a region with a different server name from the one actually in the AssignmentManager thus making the region inaccessible.

2012-01-03 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-5094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179258#comment-13179258 ] Ming Ma commented on HBASE-5094: It is a tricky bug. I tend to agree with Stack here. Perh

[jira] [Commented] (HBASE-4934) Display Master server and Regionserver start time on respective info servers.

2011-12-29 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177343#comment-13177343 ] Ming Ma commented on HBASE-4934: Jonathan, there is a special case when expired ZK session

[jira] [Commented] (HBASE-4677) Remove old single bulkLoadHFile method

2011-10-31 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140725#comment-13140725 ] Ming Ma commented on HBASE-4677: What is the general recommendation to application develop

[jira] [Commented] (HBASE-4298) Support to drain RS nodes through ZK

2011-10-31 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140233#comment-13140233 ] Ming Ma commented on HBASE-4298: Just in case, there was another code review at https://r

[jira] [Commented] (HBASE-4524) support for more than one region in .META. table

2011-09-30 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118603#comment-13118603 ] Ming Ma commented on HBASE-4524: Agree on the "remove ROOT" suggestion for the current sca

[jira] [Commented] (HBASE-4357) Region in transition - in closing state

2011-09-29 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117900#comment-13117900 ] Ming Ma commented on HBASE-4357: How about the followings, similar to how OPENING is handl

[jira] [Commented] (HBASE-4497) If region opening fails after updating META HBCK reports it as inconsistent and scanning the region throws NSRE

2011-09-29 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117881#comment-13117881 ] Ming Ma commented on HBASE-4497: 1. Agree checkAndPut solution is good enough. I am just t

[jira] [Commented] (HBASE-4497) If region opening fails after updating META HBCK reports it as inconsistent and scanning the region throws NSRE

2011-09-28 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116981#comment-13116981 ] Ming Ma commented on HBASE-4497: Using startcode and timestamp is a good idea. However, I

[jira] [Commented] (HBASE-4497) If region opening fails after updating META HBCK reports it as inconsistent and scanning the region throws NSRE

2011-09-28 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116255#comment-13116255 ] Ming Ma commented on HBASE-4497: Did some testing on ZK, my assumption that the ZK's data

[jira] [Commented] (HBASE-4497) If region opening fails after updating META HBCK reports it as inconsistent and scanning the region throws NSRE

2011-09-27 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116232#comment-13116232 ] Ming Ma commented on HBASE-4497: ok, Ram. Add some more clarification. 1. It looks ZKAss

[jira] [Commented] (HBASE-4497) If region opening fails after updating META HBCK reports it as inconsistent and scanning the region throws NSRE

2011-09-27 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116151#comment-13116151 ] Ming Ma commented on HBASE-4497: checkAndPut might work. We will use checkAndPut on both Z

[jira] [Commented] (HBASE-4492) TestRollingRestart fails intermittently

2011-09-27 Thread Ming Ma (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HBASE-4492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115798#comment-13115798 ] Ming Ma commented on HBASE-4492: Here are the sequence of events how this could happen. It