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[HIVE-10132] LLAP: Tez heartbeats are delayed by ~500+ ms due to Hadoop IPC client - Hive - [issue]
...HADOOP-11772 has a clearer bug report of the core issue inside hadoop-common.Due to the delayed heartbeats reaching the AM, the reducers are losing up-to a couple of seconds for a 60ms (x10 ...
http://issues.apache.org/jira/browse/HIVE-10132    Author: Gopal V, 2015-03-28, 06:01
[HIVE-10128] LLAP: BytesBytesMultiHashMap does not allow concurrent read-only access - Hive - [issue]
...The multi-threaded performance takes a serious hit when LLAP shares hashtables between the probe threads running in parallel. This is an explicit synchronized block inside ReusableRowContain...
http://issues.apache.org/jira/browse/HIVE-10128    Author: Gopal V, 2015-03-28, 03:59
[HIVE-10121] Implement a hive --service udflint command to check UDF jars for common shading mistakes - Hive - [issue]
...Several SerDe and UDF jars tend to shade in various parts of the dependencies including hadoop-common or guava without relocation.Implement a simple udflint tool which automates some part of...
http://issues.apache.org/jira/browse/HIVE-10121    Author: Gopal V, 2015-03-27, 21:07
[HIVE-10103] LLAP: Cancelling tasks fails to stop cache filling threads - Hive - [issue]
...Running a bad query (~1Tb scan on a 1Gb cache) and killing the tasks via the container launcher fails to free up the cache filler threads.The cache filler threads with no consumers get stuck...
http://issues.apache.org/jira/browse/HIVE-10103    Author: Gopal V, 2015-03-26, 21:04
[HIVE-9976] Possible race condition in DynamicPartitionPruner for <200ms tasks - Hive - [issue]
...Race condition in the DynamicPartitionPruner between DynamicPartitionPruner::processVertex() and DynamicPartitionpruner::addEvent() for tasks which respond with both the result and success i...
http://issues.apache.org/jira/browse/HIVE-9976    Author: Gopal V, 2015-03-26, 06:10
[HIVE-10082] LLAP: UnwrappedRowContainer throws exceptions - Hive - [issue]
...TPC-DS Query27 runs with map-joins enabled results in errors originating from these lines in UnwrappedRowContainer::unwrap()    for (int index : valueIndex) {     &n...
http://issues.apache.org/jira/browse/HIVE-10082    Author: Gopal V, 2015-03-26, 04:39
[HIVE-10081] LLAP: Make the low-level IO threadpool configurable - Hive - [issue]
...The LLAP low level reader thread-pool is hard-limited to 10-threads, which is not sufficient to max out the network bandwidth on a 10GigE network.These threads are often seen in IOWAIT, sinc...
http://issues.apache.org/jira/browse/HIVE-10081    Author: Gopal V, 2015-03-25, 04:12
[HIVE-10075] LLAP: Object Estimator digs in via a deep hashCode() - Hive - [issue]
...LLAP ObjectEstimator started showing up in profiles, due to the fact that it does a deep hash-code while creating a hash-set of unique objects.Possibly replace HashSet with IdentityHashMap?...
http://issues.apache.org/jira/browse/HIVE-10075    Author: Gopal V, 2015-03-24, 23:27
[HIVE-10047] LLAP: VectorMapJoinOperator gets an over-flow on batchSize of 1024 - Hive - [issue]
...Simple LLAP queries on constrained resources runs into an exception which suggests that the Caused by: java.lang.ArrayIndexOutOfBoundsException: 1024        at org.a...
http://issues.apache.org/jira/browse/HIVE-10047    Author: Gopal V, 2015-03-21, 07:26
[HIVE-9814] LLAP: JMX web-service end points for monitoring & metrics - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-9814    Author: Gopal V, 2015-03-20, 23:21
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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