[ https://issues.apache.org/jira/browse/HDDS-3748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mukul Kumar Singh reassigned HDDS-3748: --------------------------------------- Assignee: Attila Doroszlai > Consider reusing bytebuffer in FilePerBlockStrategy::readChunk > -------------------------------------------------------------- > > Key: HDDS-3748 > URL: https://issues.apache.org/jira/browse/HDDS-3748 > Project: Hadoop Distributed Data Store > Issue Type: Improvement > Reporter: Rajesh Balamohan > Assignee: Attila Doroszlai > Priority: Major > Labels: perfomance > Attachments: Screenshot 2020-06-08 at 10.18.03 AM.png > > > [https://github.com/apache/hadoop-ozone/blob/master/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/impl/FilePerBlockStrategy.java#L148] > > {code:java} > long len = info.getLen(); > long offset = info.getOffset(); > ByteBuffer data = ByteBuffer.allocate((int) len); > ChunkUtils.readData(chunkFile, data, offset, len, volumeIOStats); > {code} > > Instead of allocating buffer in every readChunk, it may be possible to reuse > via threadLocal ByteBuffer. Sizes/Limits could be adjusted on need basis. > This is to reduce memory pressure on DN. > !Screenshot 2020-06-08 at 10.18.03 AM.png|width=1022,height=668! -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: ozone-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: ozone-issues-h...@hadoop.apache.org