[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: 2034-v21.txt Rebase and Fix test. RemoveTest is timing out after the last test and cannot find the reason. The ExpiringMap (callbacks) is not freeing up. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, 2034-v19-rebased.txt, 2034-v19.txt, 2034-v20.txt, 2034-v21.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: 2034-v21.txt This new patch fixes the unit tests. Added a way to force a ExpiringMap.shutdown() without waiting for it to empty up. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, 2034-v19-rebased.txt, 2034-v19.txt, 2034-v20.txt, 2034-v21.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: (was: 2034-v21.txt) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, 2034-v19-rebased.txt, 2034-v19.txt, 2034-v20.txt, 2034-v21.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-2034: -- Attachment: 2034-v19-rebased.txt rebased v19. no other changes made. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, 2034-v19-rebased.txt, 2034-v19.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: 2034-v20.txt Rebased and fix ConsistencyLevelTest RemoveTest is timing out. Not sure if it is related. Update soon. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, 2034-v19-rebased.txt, 2034-v19.txt, 2034-v20.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: 2034-v19.txt Rebase and consolidates patch files 17 and 18 Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, 2034-v19.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-2034: -- Attachment: 2034-v18.txt bq. hintsInProgress.incrementAndGet(); happens outside of the executor and actually before scheduling it You're right, I mis-read that. bq. I process the callback after the message expired. If the CL was achieved (and the requirement for a hint are gathered) I return true for this target meaning that a hint needs to be written. Actually I think this does not achieve our goal of making read-repair unnecessary. For that, we need to always hint when an attempted write fails. bq. I think I prefer make the user wait for RPCTimeout That's reasonable. v18 attached (applies on top of 17). I've added waiting for hints to finish to MS.shutdown, added a call to MS.shutdown from the shutdown hook, and added a call to stopRPCServer from the shutdown hook and from drain. (This is important, because there is nothing else to prevent new messages from being added to MS's callback map.) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, 2034-v18.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v15.patch v15 replaces v14. - Wait for hints are handled in the IWriteResponseHandler - Fix broken SP.shoudHint Note: I think the Callback.shoudHint needs an enhancement for when we are during shut down in MessagingService. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-2034: -- Attachment: 2034-v16.txt bq. I process the callback after the message expired That makes sense. bq. I think the Callback.shoudHint needs an enhancement for when we are during shut down in MessagingService Yes. We should probably either wait for the messages to time out (which is mildly annoying to the user) or just write hints for everything (which may be confusing: why are there hints being sent after I restart, when no node was ever down?) I don't see a perfect solution. Also, still need to address this: bq. currentHintsQueueSize [now totalHints] increment needs to be done OUTSIDE the runnable or it will never get above the number of task executors v16 attached: rebased to current head, fixed import ordering, and added some comments. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: 2034-v17.txt Fix defective v1 patch. CallbackInfo and CreatiomTimeAware were missing. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, 2034-v16.txt, 2034-v17.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v15.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v14.patch v14 replaces v13. - Wait for the hint at SP.mutate() - Avoid passing a list of down host and handle them with FD. - Simplifies even more the logic in SP.sendToHintedEndpoints Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v14.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v13.patch V13 replaces v12. - SImplify the logic sendToHintedEndpoint in SP. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v12.patch, CASSANDRA-2034-trunk-v13.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v11.patch v11 replaces v10. - add more volatile to variable that can be changed through JMX - Add CallbackInfo and CallbackInfoWithMassage and store the message in the same ExpiringMap. - Clean up some code style violations - Simplify a bit the logic in SP.sendToHintedEndPoints. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v11.patch rebase and add missing classes. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v11.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v10.patch v10 patch. - Remove the hint executor and use MutationStage instead. - Add a queueSize counter to reject hints when the queue is full. It only applies for hints we know before hand that the node is down. I don't check for it for the hints written from MessagingService during write timeout. - Add More JMX info in StorageProxyMBean Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v10.patch, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v9.patch v9 replaces v8. added: - one more shutdown for hintsWriter (that was missing in StorageProxy. - write all the pending hints in MessageService instead of waiting for them to time out. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk-v9.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v8.patch Replaces v7. - Add an new executor in SP with an uncapped queue. - Add proper shutdown to MessagingService and SP. - Add scheduling hints on RPC timeout through MessagingService Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk-v8.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v7.patch New v7 patch. - When HH is enabled it waits for the min(RPC Timeout , all replicas's ACK) The down side is that even for CL.ONE we wait for all the replicas to reply to decide if we need to write a hint or not. So if a node is slow, request/mutation with CL.ONE will perform slightly slower when HH is enabled. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk-v7.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v4.patch v4 replaces previous ones. Fire hints when a replica does not reply Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v5.patch v5 replaces v4. add src/java/org/apache/cassandra/concurrent/CreationTimeAwareFuture.java Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-2034: -- Attachment: 2034-formatting.txt Attaching formatting patch that applies on top of v5. (Easier than explaining in English.) Looking at the actual hints next. :) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v6.patch v6 replaces (v5 + 2034-formatting) - applies Jonathan formatting patch - add assertion in AbstractWriteResponseHandler#markTargetAsReplied - log warning when the hint queue is full and there is a RejectionException when trying to queue up a new task Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: 2034-formatting.txt, CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk-v4.patch, CASSANDRA-2034-trunk-v5.patch, CASSANDRA-2034-trunk-v6.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v3.patch Add missing local writes for when a node is a coordinator, is a replica and also holds a hint. Wire up a bit the nodereplied logic in the WriteHandler. Still need to write hints on failure. (next patch) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk-v3.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk.patch Attaching a preliminary patch. I still need to handle hints on failure. Please have a look at how the timeouts are handled and if that part needs to be improved. Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v2.patch Replaces first version Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Comment: was deleted (was: Replaces first version) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: (was: CASSANDRA-2034-trunk.patch) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: (was: CASSANDRA-2034-trunk-v2.patch) Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk.patch Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patricio Echague updated CASSANDRA-2034: Attachment: CASSANDRA-2034-trunk-v2.patch Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Patricio Echague Fix For: 1.0 Attachments: CASSANDRA-2034-trunk-v2.patch, CASSANDRA-2034-trunk.patch Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] Updated: (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jonathan Ellis updated CASSANDRA-2034: -- Fix Version/s: (was: 0.7.3) 0.8 Remaining Estimate: 8h Original Estimate: 8h Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Jonathan Ellis Fix For: 0.8 Original Estimate: 8h Remaining Estimate: 8h Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] Updated: (CASSANDRA-2034) Make Read Repair unnecessary when Hinted Handoff is enabled
[ https://issues.apache.org/jira/browse/CASSANDRA-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Brandon Williams updated CASSANDRA-2034: Fix Version/s: (was: 0.7.2) 0.7.3 Make Read Repair unnecessary when Hinted Handoff is enabled --- Key: CASSANDRA-2034 URL: https://issues.apache.org/jira/browse/CASSANDRA-2034 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Jonathan Ellis Assignee: Jonathan Ellis Fix For: 0.7.3 Currently, HH is purely an optimization -- if a machine goes down, enabling HH means RR/AES will have less work to do, but you can't disable RR entirely in most situations since HH doesn't kick in until the FailureDetector does. Let's add a scheduled task to the mutate path, such that we return to the client normally after ConsistencyLevel is achieved, but after RpcTimeout we check the responseHandler write acks and write local hints for any missing targets. This would making disabling RR when HH is enabled a much more reasonable option, which has a huge impact on read throughput. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira
