[jira] [Created] (TEZ-3351) Handle ATS performance issues for Hive-LLAP.

2016-07-14 Thread Harish Jaiprakash (JIRA)
Harish Jaiprakash created TEZ-3351:
--

 Summary: Handle ATS performance issues for Hive-LLAP.
 Key: TEZ-3351
 URL: https://issues.apache.org/jira/browse/TEZ-3351
 Project: Apache Tez
  Issue Type: Bug
Reporter: Harish Jaiprakash
Assignee: Harish Jaiprakash


With Hive-LLAP, we have subsecond queries and hence can run lots of queries in 
a small interval. This can overload ATS with lot of events and create large 
number of file hdfs. This jira is to reduce performance impact of ATS logging 
by Tez.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)


[jira] [Created] (TEZ-3350) Shuffle spills are not spilled to a container-specific directory

2016-07-14 Thread Jason Lowe (JIRA)
Jason Lowe created TEZ-3350:
---

 Summary: Shuffle spills are not spilled to a container-specific 
directory
 Key: TEZ-3350
 URL: https://issues.apache.org/jira/browse/TEZ-3350
 Project: Apache Tez
  Issue Type: Bug
Affects Versions: 0.7.1
Reporter: Jason Lowe


If a Tez task receives too much input data and needs to spill the inputs to 
disk it ends up using a path that is not container-specific.  Therefore YARN 
will not automatically cleanup these files when the container exits as it 
should, and instead the files linger until the entire application completes.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)


[jira] [Created] (TEZ-3349) Tez: PipelinedSorter - remove interface calls from the inner loop

2016-07-14 Thread Gopal V (JIRA)
Gopal V created TEZ-3349:


 Summary: Tez: PipelinedSorter - remove interface calls from the 
inner loop
 Key: TEZ-3349
 URL: https://issues.apache.org/jira/browse/TEZ-3349
 Project: Apache Tez
  Issue Type: Bug
Reporter: Gopal V


IndexedSortable is responsible for a huge degradation in sort performance in 
PipelinedSorter.

With the TezRawComparator in place, the interface dispatch within indexed 
sortable is significantly affecting the speed of the sort impl.

!movabs-check.png!



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)