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[HIVE-7999] Hive metastore query too long when select * on table with large number of partitions - Hive - [issue]
...When it comes to selecting * on a Hive table with large number of partitions, a query like this:SELECT PARTITIONS.PART_ID, SDS.SD_ID, SDS.CD_ID, SERDES.SERDE_ID, PARTITIONS.CREATE_TIME, ... ...
http://issues.apache.org/jira/browse/HIVE-7999    Author: Chu Tong, 2014-12-17, 07:05
[HIVE-7906] Missing Index on Hive metastore query - Hive - [issue]
...When it comes to SELECT statement on a table with large number of partitions on Windows Azure DB, the query in the word document below causes major performance degradation. Adding this missi...
http://issues.apache.org/jira/browse/HIVE-7906    Author: Chu Tong, 2014-11-17, 00:59
[HIVE-8000] Hive query plan suboptimal on select from partitioned table with partition id as filters - Hive - [issue]
...When it comes to issue "SELECT * FROM test where id = 100 OR id = 101 OR id = 102" on table test with a large number of partitions, most of the load on the metastore comes from this query:se...
http://issues.apache.org/jira/browse/HIVE-8000    Author: Chu Tong, 2014-09-05, 06:20
[HIVE-7961] metastore schema improvement for adding partition to Hive table - Hive - [issue]
...One of the performance bottlenecks for adding a partition in Hive table and the query takes most of the time in this process is:SELECT A0.PART_NAME FROM PARTITIONS A0 LEFT OUTER JOIN TBLS B0...
http://issues.apache.org/jira/browse/HIVE-7961    Author: Chu Tong, 2014-09-03, 18:31
[HIVE-4801] output deprecation warning for hive.mapred.map.tasks.speculative.execution - Hive - [issue]
...Output deprecation warning for hive.mapred.map.tasks.speculative.execution, use are encouraged to use mapred.reduce.tasks.speculative.execution...
http://issues.apache.org/jira/browse/HIVE-4801    Author: Chu Tong, 2014-04-14, 22:01
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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