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[HDFS-6716] Update usage of KeyProviderCryptoExtension APIs on NameNode - HDFS - [issue]
...Some recent changes have landed to the KeyProviderCryptoExtension APIs, need to update the usage in HDFS to reflect this....
http://issues.apache.org/jira/browse/HDFS-6716    Author: Andrew Wang, 2014-07-22, 01:28
[HDFS-6690] Deduplicate xattr names in memory - HDFS - [issue]
...When the same string is used repeatedly for an xattr name, we could potentially save some NN memory by deduplicating the strings....
http://issues.apache.org/jira/browse/HDFS-6690    Author: Andrew Wang, 2014-07-17, 14:45
[HDFS-6619] Clean up encryption-related tests - HDFS - [issue]
...Would be good to clean up TestHDFSEncryption and TestEncryptionZonesAPI. These tests could be renamed, test timeouts added/adjusted, reduced number of minicluster start/stops, whitespace, et...
http://issues.apache.org/jira/browse/HDFS-6619    Author: Andrew Wang, 2014-07-15, 21:59
[HDFS-6668] Add and expose KeyProvider-related metrics on NameNode - HDFS - [issue]
...Would be good to expose the health of the KeyProvider on the NameNode, e.g. request latency, # of failures, # ops, etc....
http://issues.apache.org/jira/browse/HDFS-6668    Author: Andrew Wang, 2014-07-11, 18:59
[HDFS-6653] Delegate KeyProviderExtension#toString to underlying KeyProvider - HDFS - [issue]
...Would be nice to delegate this, else we get the default reference toString...
http://issues.apache.org/jira/browse/HDFS-6653    Author: Andrew Wang, 2014-07-10, 04:52
[HDFS-6635] Refactor encryption zone functionality into new EncryptionZoneManager class - HDFS - [issue]
...Working on HDFS-6474, there's a need to do additional actions upon operations like removing an encryption zone. This would be easier if the encryptionZones map wasn't directly accessed and w...
http://issues.apache.org/jira/browse/HDFS-6635    Author: Andrew Wang, 2014-07-08, 05:50
[HDFS-6613] Improve logging in caching classes - HDFS - [issue]
...Some of the log prints in the caching classes are incorrect or confusing, could use some improvement.Also adding some trace logging to help debug intermittent TestCacheDirectives failures, s...
http://issues.apache.org/jira/browse/HDFS-6613    Author: Andrew Wang, 2014-07-04, 16:15
[HDFS-6624] TestBlockTokenWithDFS#testEnd2End fails sometimes - HDFS - [issue]
...On a recent test-patch.sh run, saw this error which did not repro locally:Error MessageRebalancing expected avg utilization to become 0.2, but on datanode it remains at 0.08 ...
http://issues.apache.org/jira/browse/HDFS-6624    Author: Andrew Wang, 2014-07-03, 09:25
[HDFS-6605] Client server negotiation of cipher suite - HDFS - [issue]
...For compatibility purposes, the client and server should negotiate what cipher suite to use based on their respective capabilities. This is also a way for the server to reject old clients th...
http://issues.apache.org/jira/browse/HDFS-6605    Author: Andrew Wang, 2014-07-03, 06:38
[HDFS-6332] Support protobuf-based directory listing output suitable for OIV - HDFS - [issue]
...The initial listing output may be in JSON, but protobuf would be a better serialization format down the road....
http://issues.apache.org/jira/browse/HDFS-6332    Author: Andrew Wang, 2014-07-03, 06:28
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