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Colin Patrick McCabe
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[HDFS-4974] Analyze and add annotations to Namenode protocol methods and enable retry
...This jira is intended for: Discussing current @Idempotent annotations in HDFS protocols and adding that annotation where it is missing. Discuss how retry should be enabled for non-idempotent...
, 2013-08-27, 23:08
[HDFS-2843] Rename protobuf message StorageInfoProto to NodeInfoProto
...StorageInfoProto has cTime, layoutVersion, namespaceID and clusterID. This is really information of a node that is part of the cluster, such as Namenode, Standby/Secondary/Backup/Checkpointe...
, 2013-08-22, 08:09
[HDFS-4985] Add storage type to the protocol and expose it in block report and block locations
...With HDFS-2880 datanode now supports storage abstraction. This is to add storage type in to the protocol. Datanodes currently report blocks per storage. Storage would include storage type at...
, 2013-08-22, 00:19
[HDFS-4777] File creation with overwrite flag set to true results in logSync holding namesystem lock
...FSNamesystem#startFileInternal calls delete. Delete method releases the write lock, making parts of startFileInternal code unintentionally executed without write lock being held....
, 2013-08-13, 13:52
[HDFS-4979] Implement retry cache on the namenode
, 2013-07-26, 23:41
[HDFS-4956] DistributedFileSystem does not handle CreateFlag.APPEND in create call
...Currently DistributedFileSystem does not handle CreateFlag.APPEND in the implementation of FileSystem#create() method. It only support OVERWRITE & CREATE or just CREATE....
, 2013-07-26, 11:35
[HDFS-4602] TestBookKeeperHACheckpoints fails
...See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1344/Failed tests: testStandbyExceptionThrownDuringCheckpoint(org.apache.hadoop.contrib.bkjournal.TestBookKeeperHACheckpoints): SBN...
, 2013-07-24, 15:12
[HDFS-4892] Number of transceivers reported by the datanode is incorrect
...Currently a datanode reports the transceiver count to namenode. Namenode aggregates this as TotalLoad metrics and is used for monitoring cluster activity. It is also used for making block pl...
, 2013-07-23, 03:22
[HDFS-5008] Make ClientProtocol#abandonBlock() idempotent
...Currently when abandonBlock is called, if the block does not exist, then the namenode throws an exception. I propose making it idempotent, by returning success if the block that is being aba...
, 2013-07-22, 19:31
[HDFS-4912] Cleanup FSNamesystem#startFileInternal
...FSNamesystem#startFileInternal is used by both create and append. This results in ugly if else conditions to consider append/create scenarios. This method can be refactored and the code can ...
, 2013-07-13, 15:08
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