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Leitao Guo updated HDFS-7692: ----------------------------- Attachment: HDFS-7692.02.patch > DataStorage#addStorageLocations(...) should support MultiThread to speedup > the upgrade of block pool at multi storage directories. > ---------------------------------------------------------------------------------------------------------------------------------- > > Key: HDFS-7692 > URL: https://issues.apache.org/jira/browse/HDFS-7692 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Affects Versions: 2.5.2 > Reporter: Leitao Guo > Assignee: Leitao Guo > Labels: BB2015-05-TBR > Attachments: HDFS-7692.01.patch, HDFS-7692.02.patch > > > {code:title=DataStorage#addStorageLocations(...)|borderStyle=solid} > for (StorageLocation dataDir : dataDirs) { > File root = dataDir.getFile(); > ... ... > bpStorage.recoverTransitionRead(datanode, nsInfo, bpDataDirs, > startOpt); > addBlockPoolStorage(bpid, bpStorage); > ... ... > successVolumes.add(dataDir); > } > {code} > In the above code the storage directories will be analyzed one by one, which > is really time consuming when upgrading HDFS with datanodes have dozens of > large volumes. MultiThread dataDirs analyzing should be supported here to > speedup upgrade. -- This message was sent by Atlassian JIRA (v6.3.4#6332)