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[HIVE-10175] PartitionPruning lacks a fast-path exit for large IN() queries - Hive - [issue]
...TezCompiler::runDynamicPartitionPruning() & ppr.PartitionPruner() calls the graph walker even if all tables provided to the optimizer are unpartitioned (or temporary) tables.This makes i...
http://issues.apache.org/jira/browse/HIVE-10175    Author: Gopal V, 2015-04-03, 00:07
[HIVE-10162] LLAP: Avoid deserializing the plan > 1 times in a single thread - Hive - [issue]
...Kryo shows up in the critical hot-path for LLAP when using a plan with a very large filter condition, due to the fact that the plan is deserialized more than once for each task....
http://issues.apache.org/jira/browse/HIVE-10162    Author: Gopal V, 2015-04-02, 22:56
[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, 2015-04-01, 22:46
[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, 2015-04-01, 21:19
[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, 2015-04-01, 04:20
[HIVE-10164] LLAP: ORC BIGINT SARGs regressed after Parquet PPD fixes (HIVE-8122) - Hive - [issue]
...HIVE-8122 seems to have introduced a toString() to the ORC PPD codepath for BIGINT.https://github.com/apache/hive/blob/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/sarg/SearchArgumentImpl....
http://issues.apache.org/jira/browse/HIVE-10164    Author: Gopal V, 2015-04-01, 01:58
[HIVE-10156] SimpleFetchOptimizer - disable all threshold check for an unfiltered select - Hive - [issue]
...SimpleFetchOptimizer does not optimize simple projections without a filter on an extremely large table by skipping to the FetchTask with -1 limit....
http://issues.apache.org/jira/browse/HIVE-10156    Author: Gopal V, 2015-03-31, 04:39
[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-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-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
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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