[jira] [Commented] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14312583#comment-14312583 ] Kannan Rajah commented on MAPREDUCE-6237: - [~ozawa] Is the patch alright?

[jira] [Created] (MAPREDUCE-6247) Use DBCP connection pooling in DBInputFormat

Kannan Rajah created MAPREDUCE-6247: --- Summary: Use DBCP connection pooling in DBInputFormat Key: MAPREDUCE-6247 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6247 Project: Hadoop Map/Reduce

[jira] [Commented] (MAPREDUCE-6237) Multiple mappers with DBInputFormat don't work because of reusing conections

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14312745#comment-14312745 ] Kannan Rajah commented on MAPREDUCE-6237: - Created MAPREDUCE-6247 to track

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Attachment: mapreduce-6237.patch DBRecordReader is not thread safe

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Attachment: (was: mapreduce-6237.patch) DBRecordReader is not thread safe

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Attachment: mapreduce-6237.patch getConnection maintains same semantics as earlier -

[jira] [Commented] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14305720#comment-14305720 ] Kannan Rajah commented on MAPREDUCE-6237: - I understand that this causes a

[jira] [Commented] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14304294#comment-14304294 ] Kannan Rajah commented on MAPREDUCE-6237: - Fixed the patch to retain

[jira] [Commented] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14304291#comment-14304291 ] Kannan Rajah commented on MAPREDUCE-6237: - Fixed the patch to retain

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Attachment: mapreduce-6237.patch DBRecordReader is not thread safe

[jira] [Commented] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14301929#comment-14301929 ] Kannan Rajah commented on MAPREDUCE-6237: - I don't see connection pooling

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Component/s: mrv2 Target Version/s: 2.6.1 DBRecordReader is not thread safe

[jira] [Work started] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Work on MAPREDUCE-6237 started by Kannan Rajah. --- DBRecordReader is not thread safe -

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Status: Patch Available (was: In Progress) Changed getConnection method to

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Attachment: mapreduce-6237.patch DBRecordReader is not thread safe

[jira] [Commented] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14301667#comment-14301667 ] Kannan Rajah commented on MAPREDUCE-6237: - [~tomwhite] [~kimballa] I will

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Description: DBInputFormat.createDBRecorder is reusing JDBC connections across

[jira] [Updated] (MAPREDUCE-6237) DBRecordReader is not thread safe

[ https://issues.apache.org/jira/browse/MAPREDUCE-6237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah updated MAPREDUCE-6237: Description: DBInputFormat.createDBRecorder is reusing JDBC connections across

[jira] [Created] (MAPREDUCE-6237) DBRecordReader is not thread safe

Kannan Rajah created MAPREDUCE-6237: --- Summary: DBRecordReader is not thread safe Key: MAPREDUCE-6237 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6237 Project: Hadoop Map/Reduce

[jira] [Commented] (MAPREDUCE-3902) MR AM should reuse containers for map tasks, there-by allowing fine-grained control on num-maps for users without need for CombineFileInputFormat etc.

[ https://issues.apache.org/jira/browse/MAPREDUCE-3902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14233212#comment-14233212 ] Kannan Rajah commented on MAPREDUCE-3902: - [~rohithsharma] Can you share the

[jira] [Commented] (MAPREDUCE-3902) MR AM should reuse containers for map tasks, there-by allowing fine-grained control on num-maps for users without need for CombineFileInputFormat etc.

[ https://issues.apache.org/jira/browse/MAPREDUCE-3902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14233492#comment-14233492 ] Kannan Rajah commented on MAPREDUCE-3902: - OK. I am going to start looking at

[jira] [Assigned] (MAPREDUCE-3902) MR AM should reuse containers for map tasks, there-by allowing fine-grained control on num-maps for users without need for CombineFileInputFormat etc.

[ https://issues.apache.org/jira/browse/MAPREDUCE-3902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Kannan Rajah reassigned MAPREDUCE-3902: --- Assignee: Kannan Rajah (was: Siddharth Seth) MR AM should reuse containers for

[jira] [Commented] (MAPREDUCE-3902) MR AM should reuse containers for map tasks, there-by allowing fine-grained control on num-maps for users without need for CombineFileInputFormat etc.

[ https://issues.apache.org/jira/browse/MAPREDUCE-3902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14232081#comment-14232081 ] Kannan Rajah commented on MAPREDUCE-3902: - [~sseth] I am going to look at JVM