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Tsz Wo Nicholas Sze commented on HDFS-7276: ------------------------------------------- > Do we want to have a mechanism to decrease the memory usage held by the > FixedLengthManager#freeQueue after the peak passes? ... Filed HDFS-7321. > Limit the number of byte arrays used by DFSOutputStream > ------------------------------------------------------- > > Key: HDFS-7276 > URL: https://issues.apache.org/jira/browse/HDFS-7276 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs-client > Reporter: Tsz Wo Nicholas Sze > Assignee: Tsz Wo Nicholas Sze > Fix For: 2.6.0 > > Attachments: h7276_20141021.patch, h7276_20141022.patch, > h7276_20141023.patch, h7276_20141024.patch, h7276_20141027.patch, > h7276_20141027b.patch, h7276_20141028.patch, h7276_20141029.patch, > h7276_20141029b.patch, h7276_20141030.patch, h7276_20141031.patch > > > When there are a lot of DFSOutputStream's writing concurrently, the number of > outstanding packets could be large. The byte arrays created by those packets > could occupy a lot of memory. -- This message was sent by Atlassian JIRA (v6.3.4#6332)