Colin Patrick McCabe
Vinod Kumar Vavilapalli
Tsz Wo Nicholas Sze
Aaron T. Myers
Brahma Reddy Battula
Uma Maheswara Rao G
Arun C Murthy
Colin P. McCabe
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[HDFS-8387] Erasure Coding: Revisit the long and int datatypes usage in striping logic
...This idea of this jira is to revisit the usage of long and int data types in the striping logic.Related discussion here in HDFS-8294...
, 2017-03-21, 03:09
[HDFS-9879] Erasure Coding : schedule striped blocks to be cached on DataNodes
...This jira to discuss and implement the caching of striped block objects on the appropriate datanode.Presently it is checking block group size and scheduling the blockGroupId to the datanode,...
, 2017-01-19, 08:21
[HDFS-8125] Erasure Coding: Expose refreshECSchemas command to reload predefined schemas
...This is to expose refreshECSchemas command to administrators. When invoking this command it will reload predefined schemas from configuration file and dynamically update the schema definitio...
, 2017-01-19, 03:07
[HDFS-10461] Erasure Coding: Optimize block checksum recalculation logic on the fly by reconstructing multiple missed blocks at a time
...This is HDFS-9833 follow-on task. HDFS-9833 is recomputing only one block checksum a time. The reconstruction logic can be further optimized by reconstructing multiple blocks at a time.There...
, 2017-01-19, 00:16
[HDFS-8959] Provide an iterator-based API for listing all the snapshottable directories
...Presently DistributedFileSystem#getSnapshottableDirListing() is sending all the SnapshottableDirectoryStatus array to the clients. Now the client should have enough space to hold it in mem...
, 2017-01-07, 00:57
[HDFS-10186] DirectoryScanner: Improve logs by adding full path of both actual and expected block directories
...As per the discussion, this jira is to improve directory scanner log by adding the wrong and correct directory path so that admins can take necessary actions....
, 2017-01-06, 01:52
[HDFS-11193] [SPS]: Erasure coded files should be considered for satisfying storage policy
...Erasure coded striped files supports storage policies HOT, COLD, ALLSSD. HdfsAdmin#satisfyStoragePolicy API call on a directory should consider all immediate files under that directory and n...
, 2017-01-05, 17:32
[HDFS-11082] Erasure Coding : Provide replicated EC policy to just replicating the files
...The idea of this jira is to provide a new replicated EC policy so that we can override the EC policy on a parent directory and go back to just replicating the files based on replication fact...
, 2016-12-23, 10:18
[HDFS-11032] [SPS]: Handling of block movement failure at the coordinator datanode
...The idea of this jira is to discuss and implement an efficient failure(block movement failure) handling logic at the datanode cooridnator. Code reference.Following are the possible err...
, 2016-12-23, 01:09
[HDFS-11164] Mover should avoid unnecessary retries if the block is pinned
...When mover is trying to move a pinned block to another datanode, it will internally hits the following IOException and mark the block movement as failure. Since the Mover has dfs.mover.retry...
, 2016-12-14, 01:48
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