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[HBASE-7970] Improve file descriptor usage: currently, there are two file descriptors per storefile - HBase - [issue]
...This is because there are two open calls in the HFile: one with checksum and another for without checksum support in v2:see the method in HFile:createReaderWithEncoding()FSDataInputStream fs...
http://issues.apache.org/jira/browse/HBASE-7970    Author: Himanshu Vashishtha, 2013-04-29, 22:40
[HBASE-8395] Remove TestFromClientSide.testPoolBehavior - HBase - [issue]
...This test tests the underlying ThreadPoolExecutor's thread management, and has nothing to do with HBase functionality. I suggest we should delete it....
http://issues.apache.org/jira/browse/HBASE-8395    Author: Himanshu Vashishtha, 2013-04-24, 13:22
[HBASE-7937] Retry log rolling to support HA NN scenario - HBase - [issue]
...A failure in log rolling causes regionserver abort. In case of HA NN, it will be good if there is a retry mechanism to roll the logs.A corresponding jira for MemStore retries is HBASE-7507....
http://issues.apache.org/jira/browse/HBASE-7937    Author: Himanshu Vashishtha, 2013-04-24, 06:44
[HBASE-8102] Replication NodeFailoverWorker should check other rs znodes before proceeding - HBase - [issue]
...NodeFailoverWorker takes the dead rs znode and starts processing it (moving the log znodes under it, etc). Even a regionserver restart will trigger this znodes movement. This cause some othe...
http://issues.apache.org/jira/browse/HBASE-8102    Author: Himanshu Vashishtha, 2013-04-23, 20:26
[HBASE-8294] Make HBaseConfiguration a singleton class - HBase - [issue]
...HBaseConfiguration.create() calls a new Configuration object. Ideally, we would like to have just one configuration object in the jvm....
http://issues.apache.org/jira/browse/HBASE-8294    Author: Himanshu Vashishtha, 2013-04-09, 14:48
[HBASE-8288] HBaseFileSystem: Refactoring and correct semantics for createPath methods - HBase - [issue]
...This jira is for two issues I see in the HBaseFileSystem class:1) Load testing on a 7 node cluster using ycsb insert workload shows that static initialization of conf properties results in a...
http://issues.apache.org/jira/browse/HBASE-8288    Author: Himanshu Vashishtha, 2013-04-09, 08:33
[HBASE-6550] Refactoring ReplicationSink to make it more responsive of cluster health - HBase - [issue]
...ReplicationSink replicates the WALEdits in the local cluster. It uses native HBase client to insert the mutations. Sometime, it takes a while to process it (may be due to region splitting, g...
http://issues.apache.org/jira/browse/HBASE-6550    Author: Himanshu Vashishtha, 2013-04-07, 06:17
[HBASE-7607] Fix TestRegionServerCoprocessorExceptionWithAbort flakiness in 0.94 - HBase - [issue]
...TestRegionServerCoprocessorExceptionWithAbort fails sometimes both on trunk and 0.94.X. The codebase is different in both. In 0.94.x, client retries to look at the root region, while the clu...
http://issues.apache.org/jira/browse/HBASE-7607    Author: Himanshu Vashishtha, 2013-04-06, 04:25
[HBASE-8211] Support for NN HA for 0.94 - HBase - [issue]
...HBase-8156 is for adding support for retrying non-idempotent operations. This is useful in case NN is suffering from n/w hiccups, etc. This jira is to add similar support for 0.94.x branch....
http://issues.apache.org/jira/browse/HBASE-8211    Author: Himanshu Vashishtha, 2013-04-05, 02:38
[HBASE-8156] Support for Namenode HA for non-idempotent operations - HBase - [issue]
...In hadoop 2 HA, non-idempotent operations are not retried at the hdfs side. This is by design as retrying a non-idempotent operation might not be a good design choice for some use case. HBas...
http://issues.apache.org/jira/browse/HBASE-8156    Author: Himanshu Vashishtha, 2013-03-30, 00:04
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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