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David Handermann resolved NIFI-6501. ------------------------------------ Fix Version/s: 1.20.0 Resolution: Fixed > Add config to limit buffer queue size in CaptureChangeMySQL > ----------------------------------------------------------- > > Key: NIFI-6501 > URL: https://issues.apache.org/jira/browse/NIFI-6501 > Project: Apache NiFi > Issue Type: Improvement > Components: Configuration > Affects Versions: 1.9.2, 1.14.0, 1.13.1, 1.13.2 > Reporter: Purushotham Pushpavanthar > Assignee: Matt Burgess > Priority: Major > Labels: easyfix > Fix For: 1.20.0 > > Attachments: image-2019-08-02-11-29-10-829.png > > Time Spent: 3h 50m > Remaining Estimate: 0h > > CaptureChangeMySQL processor registers a listener with Blocking Queue as > buffer with the BinLogClient. When the thread polling from the Queue is > slower compared to writer, the queue grows uncontrollably and brings down the > node. > Since the flow writing to listeners in > [mysql-binlog-connector-java|[https://github.com/shyiko/mysql-binlog-connector-java]] > is blocking, we should initialize the queue with *initial size* and *queue > offer timeout* specified by the user based in cluster configuration. > [http://apache-nifi-developer-list.39713.n7.nabble.com/NiFi-Cluster-crashes-while-running-CaptureChangeMySQL-for-CDC-td20895.html] -- This message was sent by Atlassian Jira (v8.20.10#820010)