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ASF GitHub Bot commented on HADOOP-18872: ----------------------------------------- anujmodi2021 closed pull request #6284: HADOOP-18872: [Backport to 3.3] [ABFS] [BugFix] Misreporting Retry Count for Sub-sequential and Parallel Operations URL: https://github.com/apache/hadoop/pull/6284 > ABFS: Misreporting Retry Count for Sub-sequential and Parallel Operations > ------------------------------------------------------------------------- > > Key: HADOOP-18872 > URL: https://issues.apache.org/jira/browse/HADOOP-18872 > Project: Hadoop Common > Issue Type: Sub-task > Components: build > Affects Versions: 3.3.6 > Reporter: Anmol Asrani > Assignee: Anuj Modi > Priority: Major > Labels: Bug, pull-request-available > Fix For: 3.4.0 > > > There was a bug identified where retry count in the client correlation id was > wrongly reported for sub-sequential and parallel operations triggered by a > single file system call. This was due to reusing same tracing context for all > such calls. > We create a new tracing context as soon as HDFS call comes. We keep on > passing that same TC for all the client calls. > For instance, when we get a createFile call, we first call metadata > operations. If those metadata operations somehow succeeded after a few > retries, the tracing context will have that many retry count in it. Now when > actual call for create is made, same retry count will be used to construct > the headers(clientCorrelationId). Alhough the create operation never failed, > we will still see retry count from the previous request. > Fix is to use a new tracing context object for all the network calls made. > All the sub-sequential and parallel operations will have same primary request > Id to correlate them, yet they will have their own tracing of retry count. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org