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[HDFS-5120] add command-line support for manipulating cache pools - HDFS - [issue]
...We should add command-line support for creating, removing, and listing cache directives and manipulating cache pools....
http://issues.apache.org/jira/browse/HDFS-5120    Author: Colin Patrick McCabe, 2013-09-09, 19:55
[HDFS-5169] hdfs.c: translateZCRException: null pointer deref when translating some exceptions - HDFS - [issue]
...hdfs.c: translateZCRException: there is a null pointer deref when translating some exceptions....
http://issues.apache.org/jira/browse/HDFS-5169    Author: Colin Patrick McCabe, 2013-09-06, 21:08
[HDFS-5163] miscellaneous cache pool RPC fixes - HDFS - [issue]
...some minor fixes-- see below....
http://issues.apache.org/jira/browse/HDFS-5163    Author: Colin Patrick McCabe, 2013-09-06, 19:53
[HDFS-5121] add RPCs for creating and manipulating cache pools - HDFS - [issue]
...We should add RPCs for creating and manipulating cache pools....
http://issues.apache.org/jira/browse/HDFS-5121    Author: Colin Patrick McCabe, 2013-09-04, 19:24
[HDFS-3676] handleSaslConnection failure doesn't try to renew the correct UGI - HDFS - [issue]
...Client.java has this code:    private synchronized void handleSaslConnectionFailure(        final int currRetries, final int maxRetries, final Excepti...
http://issues.apache.org/jira/browse/HDFS-3676    Author: Colin Patrick McCabe, 2013-08-29, 20:02
[HDFS-5051] Propagate cache status information from the DataNode to the NameNode - HDFS - [issue]
...The DataNode needs to inform the NameNode of its current cache state. Let's wire up the RPCs and stub out the relevant methods on the DN and NN side....
http://issues.apache.org/jira/browse/HDFS-5051    Author: Colin Patrick McCabe, 2013-08-24, 04:43
[HDFS-5052] Add cacheRequest/uncacheRequest support to NameNode - HDFS - [issue]
...Add cacheRequest/uncacheRequest/listCacheRequest support to DFSAdmin and NameNode.  Maintain a list of active CachingRequests on the NameNode....
http://issues.apache.org/jira/browse/HDFS-5052    Author: Colin Patrick McCabe, 2013-08-24, 04:42
[HDFS-5050] Add DataNode support for mlock and munlock - HDFS - [issue]
...Add DataNode support for mlock and munlock.  The DataNodes should respond to RPCs telling them to mlock and munlock blocks.  Blocks should be uncached when the NameNode asks for th...
http://issues.apache.org/jira/browse/HDFS-5050    Author: Colin Patrick McCabe, 2013-08-24, 04:41
[HDFS-5101] ZCR should work with blocks bigger than 2 GB - HDFS - [issue]
...Zero-copy reads should work with blocks bigger than 2 GB.  This will a little tricky, because a single ByteBuffer can only span 2 GB in Java (due to the use of a signed 4-byte int for s...
http://issues.apache.org/jira/browse/HDFS-5101    Author: Colin Patrick McCabe, 2013-08-15, 21:54
[HDFS-4870] periodically re-resolve hostnames in included and excluded datanodes list - HDFS - [issue]
...We currently only resolve the hostnames in the included and excluded datanodes list once-- when the list is read.  The rationale for this is that in big clusters, DNS resolution for tho...
http://issues.apache.org/jira/browse/HDFS-4870    Author: Colin Patrick McCabe, 2013-08-05, 20:14
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB