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ASF GitHub Bot logged work on HDDS-2034: ---------------------------------------- Author: ASF GitHub Bot Created on: 29/Sep/19 02:36 Start Date: 29/Sep/19 02:36 Worklog Time Spent: 10m Work Description: ChenSammi commented on issue #1469: HDDS-2034. Async RATIS pipeline creation and destroy through heartbea… URL: https://github.com/apache/hadoop/pull/1469#issuecomment-536242054 > @ChenSammi Thanks a lot for working on this! Please find my comments below. > > 1. For the SafeModeRules, if we allow pipeline creation during safe mode we need to modify the rules so that newly created pipelines are not counted in the rule. > > 2. Can we just trigger PipelineReport from the datanodes after creation of pipeline instead of CreatePipelineACK? That would greatly simplify the OPEN pipeline code. Thanks @lokeshj1703 for view the patch. 1. For SafeModeRules, I do modified the HealthyPipelineSafeModeRule a bit. Add two properties, one is "hdds.scm.safemode.pipeline.creation" to control whether create pipeline in safemode. Another is "hdds.scm.safemode.min.pipeline" control the minimum pipeline number to exit safe mode when create pipeline in safemode is enabled. 2. It's a good point. I will check the code to see if I leverage the trigger pipelineReport to replace the CreatePipelineACK. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 320100) Time Spent: 8h 20m (was: 8h 10m) > Async RATIS pipeline creation and destroy through heartbeat commands > -------------------------------------------------------------------- > > Key: HDDS-2034 > URL: https://issues.apache.org/jira/browse/HDDS-2034 > Project: Hadoop Distributed Data Store > Issue Type: Sub-task > Reporter: Sammi Chen > Assignee: Sammi Chen > Priority: Major > Labels: pull-request-available > Time Spent: 8h 20m > Remaining Estimate: 0h > > Currently, pipeline creation and destroy are synchronous operations. SCM > directly connect to each datanode of the pipeline through gRPC channel to > create the pipeline to destroy the pipeline. > This task is to remove the gRPC channel, send pipeline creation and destroy > action through heartbeat command to each datanode. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org