Alexander Belyak created IGNITE-6898: ----------------------------------------
Summary: Datastreamers can lead to OOM on server side Key: IGNITE-6898 URL: https://issues.apache.org/jira/browse/IGNITE-6898 Project: Ignite Issue Type: Bug Security Level: Public (Viewable by anyone) Components: general Affects Versions: 2.1 Reporter: Alexander Belyak If grid server node process many datastreamer in same time (from many clients, with many cache backups and persistence, i.e. if processing take some time) it can lead to OutOfMemoryError in server JVM. To fix we can: 1) specify buffer sized in bytes instead of entries 2) use pageMemory to store streamer buffers I get this problem on 16 server node grid with 45g heap each and 15 clients with 2 datastreamer each with this settings: autoFlushFrequency=0 allowOverwrite=false perNodeParallelOperations=8 perNodeBufferSize=10000 Each client have 64g heap. -- This message was sent by Atlassian JIRA (v6.4.14#64029)