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[HDFS-11034] Provide a command line tool to clear decommissioned DataNode information from the NameNode without restarting.
...Information about decommissioned DataNodes remains tracked in the NameNode for the entire NameNode process lifetime. Currently, the only way to clear this information is to restart the...
, 2017-09-21, 09:19
[HDFS-11995] HDFS Architecture documentation incorrectly describes writing to a local temporary file.
...The HDFS Architecture documentation has a section titled "Staging" that describes clients writing to a local temporary file first before interacting with the NameNode to allocate file metada...
, 2017-06-20, 05:14
[HDFS-9505] HDFS Architecture documentation needs to be refreshed.
...The HDFS Architecture document is out of date with respect to the current design of the system.http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsDesign.htmlThere are ...
, 2017-06-19, 17:37
[HDFS-9038] DFS reserved space is erroneously counted towards non-DFS used.
...HDFS-5215 changed the DataNode volume available space calculation to consider the reserved space held by the dfs.datanode.du.reserved configuration property. As a side effect, reserved...
, 2017-05-04, 11:58
[HDFS-5608] WebHDFS: implement ACL APIs.
...Implement and test GETACLS and SETACL in WebHDFS....
, 2017-02-16, 16:30
[HDFS-9409] DataNode shutdown does not guarantee full shutdown of all threads due to race condition.
...DataNode#shutdown is documented to return "only after shutdown is complete". Even after completion of this method, it's possible that threads started by the DataNode are still running....
, 2017-02-06, 19:58
[HDFS-8432] Introduce a minimum compatible layout version to allow downgrade in more rolling upgrade use cases.
...Maintain the prior layout version during the upgrade window and reject attempts to use new features until after the upgrade has been finalized. This guarantees that the prior software ...
, 2017-01-17, 22:26
[HDFS-9534] Add CLI command to clear storage policy from a path.
...The hdfs storagepolicies command has sub-commands for -setStoragePolicy and -getStoragePolicy on a path. However, there is no -removeStoragePolicy to remove a previously set storage po...
, 2017-01-09, 19:24
[HDFS-8510] Provide different timeout settings for hdfs dfsadmin -getDatanodeInfo.
...During a rolling upgrade, an administrator runs hdfs dfsadmin -getDatanodeInfo to check if a DataNode has stopped. Currently, this operation is subject to the RPC connection retries de...
, 2017-01-06, 22:06
[HDFS-7121] For JournalNode operations that must succeed on all nodes, execute a pre-check to verify that the operation can succeed.
...Several JournalNode operations are not satisfied by a quorum. They must succeed on every JournalNode in the cluster. If the operation succeeds on some nodes, but fails on others,...
, 2017-01-06, 22:04
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