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[HIVE-9711] ORC Vectorization DoubleColumnVector.isRepeating=false if all entries are NaN - Hive - [issue]
...The isRepeating=true check uses Java equality, which results in NaN != NaN comparison operations.The noNulls case needs the current check folded into the previous loop, while the hasNulls ca...
http://issues.apache.org/jira/browse/HIVE-9711    Author: Gopal V, 2015-04-20, 20:56
[HIVE-10173] ThreadLocal synchronized initialvalue() is irrelevant in JDK7 - Hive - [issue]
...The threadlocals need not synchronize the calls to initialvalue(), since that is effectively going to be called once per-thread in JDK7.The anti-pattern lives on due to a very old JDK bug - ...
http://issues.apache.org/jira/browse/HIVE-10173    Author: Gopal V, 2015-04-20, 07:18
[HIVE-10190] CBO: AST mode checks for TABLESAMPLE with AST.toString().contains("TOK_TABLESPLITSAMPLE") - Hive - [issue]
...public static boolean validateASTForUnsupportedTokens(ASTNode ast) {    String astTree = ast.toStringTree();    // if any of following tokens are present in AST...
http://issues.apache.org/jira/browse/HIVE-10190    Author: Gopal V, 2015-04-17, 16:05
[HIVE-10217] LLAP: Support caching of uncompressed ORC data - Hive - [issue]
...Caused by: java.io.IOException: ORC compression buffer size (0) is smaller than LLAP low-level cache minimum allocation size (131072). Decrease the value for hive.llap.io.cache.orc.alloc.min...
http://issues.apache.org/jira/browse/HIVE-10217    Author: Gopal V, 2015-04-17, 11:31
[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, 2015-04-16, 15:17
[HIVE-9645] Constant folding case NULL equality - Hive - [issue]
...Hive logical optimizer does not follow the Null scan codepath when encountering a NULL = 1;NULL = 1 is not evaluated as false in the constant propogation implementation.hive> explain sele...
http://issues.apache.org/jira/browse/HIVE-9645    Author: Gopal V, 2015-04-16, 02:13
[HIVE-10334] LLAP: Self-joins with the cache enabled - Hive - [issue]
...Looks like reading the same split from 2 tasks in the same process might have some corner cases.hive> select count(1) from tpch_orc_snappy_1000.region y join tpch_orc_snappy_1000.region x...
http://issues.apache.org/jira/browse/HIVE-10334    Author: Gopal V, 2015-04-15, 02:35
[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, 2015-04-14, 22:31
[HIVE-10220] Disable all non-concurrent access to BytesBytesHashMap - Hive - [issue]
...HybridHashTableContainer can end up being cached if it does not spill - that needs to follow HIVE-10128 thread safety patterns for the partitioned hash maps....
http://issues.apache.org/jira/browse/HIVE-10220    Author: Gopal V, 2015-04-14, 22:31
[HIVE-10012] LLAP: Hive sessions run before Slider registers to YARN registry fail to launch - Hive - [issue]
...The LLAP YARN registry only registers entries after at least one daemon is up.Any Tez session starting before that will end up with an error listing zookeeper directories.2015-03-18 16:54:21...
http://issues.apache.org/jira/browse/HIVE-10012    Author: Gopal V, 2015-04-14, 22:07
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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