[ https://issues.apache.org/jira/browse/HAWQ-762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kavinder Dhaliwal resolved HAWQ-762. ------------------------------------ Resolution: Fixed Fix Version/s: (was: backlog) 2.1.0.0-incubating > Hive aggregation queries through PXF sometimes hang > --------------------------------------------------- > > Key: HAWQ-762 > URL: https://issues.apache.org/jira/browse/HAWQ-762 > Project: Apache HAWQ > Issue Type: Bug > Components: Hcatalog, PXF > Affects Versions: 2.0.0.0-incubating > Reporter: Oleksandr Diachenko > Assignee: Kavinder Dhaliwal > Labels: performance > Fix For: 2.1.0.0-incubating > > > Reproduce Steps: > {code} > select count(*) from hcatalog.default.hivetable; > {code} > sometimes, this query will hang and we see from pxf logs that Hive thrift > server cannot be connected from PXF agent. > While users can still visit hive metastore (through HUE) and execute the same > query. > After a restart of PXF agent, this query goes through without issues. > *Troubleshooting Guide* > - check catalina.out (tomcat) and pxf-service.log to see if the query request > gets to tomcat/pxf webapp, any exceptions happened during the time window > - enable {code}log_min_messages=DEBUG2{code} to see at which step the query > is stuck > - try: > {code} > curl http://<uri:port>/pxf/ProtocolVersion > {code} > where URI is the hostname or IP of the machine you installed PXF, port is > usually 51200 if you didn’t change it. > The response you’ll get if PXF service is running OK: > {code} > {version: v14} > {code} -- This message was sent by Atlassian JIRA (v6.3.15#6346)