Eric Lin created HIVE-13160:
-------------------------------
Summary: HS2 unable to load UDFs on startup when HMS is not ready
Key: HIVE-13160
URL: https://issues.apache.org/jira/browse/HIVE-13160
Project: Hive
Issue Type: Bug
Components: HiveServer2
Affects Versions: 1.2.1
Reporter: Eric Lin
Assignee: Vaibhav Gumashta
The error looks like this:
{code}
2016-02-24 21:16:09,901 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:16:09,971 WARN hive.metastore: [main]: Failed to connect to the
MetaStore Server...
2016-02-24 21:16:09,971 INFO hive.metastore: [main]: Waiting 1 seconds before
next connection attempt.
2016-02-24 21:16:10,971 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:16:10,975 WARN hive.metastore: [main]: Failed to connect to the
MetaStore Server...
2016-02-24 21:16:10,976 INFO hive.metastore: [main]: Waiting 1 seconds before
next connection attempt.
2016-02-24 21:16:11,976 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:16:11,979 WARN hive.metastore: [main]: Failed to connect to the
MetaStore Server...
2016-02-24 21:16:11,979 INFO hive.metastore: [main]: Waiting 1 seconds before
next connection attempt.
2016-02-24 21:16:12,987 WARN hive.ql.metadata.Hive: [main]: Failed to register
all functions.
java.lang.RuntimeException: Unable to instantiate
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
.....
2016-02-24 21:16:12,995 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:16:13,004 WARN hive.metastore: [main]: Failed to connect to the
MetaStore Server...
2016-02-24 21:16:13,004 INFO hive.metastore: [main]: Waiting 1 seconds before
next connection attempt.
2016-02-24 21:16:14,004 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:16:14,007 WARN hive.metastore: [main]: Failed to connect to the
MetaStore Server...
2016-02-24 21:16:14,007 INFO hive.metastore: [main]: Waiting 1 seconds before
next connection attempt.
2016-02-24 21:16:15,007 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:16:15,010 WARN hive.metastore: [main]: Failed to connect to the
MetaStore Server...
2016-02-24 21:16:15,010 INFO hive.metastore: [main]: Waiting 1 seconds before
next connection attempt.
2016-02-24 21:16:16,012 INFO org.apache.hive.service.server.HiveServer2:
[main]: Shutting down HiveServer2
2016-02-24 21:16:16,014 INFO org.apache.hive.service.server.HiveServer2:
[main]: Exception caught when calling stop of HiveServer2 before retrying start
java.lang.NullPointerException
at org.apache.hive.service.server.HiveServer2.stop(HiveServer2.java:283)
at
org.apache.hive.service.server.HiveServer2.startHiveServer2(HiveServer2.java:351)
at
org.apache.hive.service.server.HiveServer2.access$400(HiveServer2.java:69)
at
org.apache.hive.service.server.HiveServer2$StartOptionExecutor.execute(HiveServer2.java:545)
at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:418)
....
2016-02-24 21:16:16,014 WARN org.apache.hive.service.server.HiveServer2:
[main]: Error starting HiveServer2 on attempt 1, will retry in 60 seconds
......
2016-02-24 21:17:16,016 INFO org.apache.hive.service.server.HiveServer2:
[main]: Starting HiveServer2
2016-02-24 21:17:16,131 WARN org.apache.hadoop.hive.conf.HiveConf: [main]:
HiveConf of name hive.sentry.conf.url does not exist
2016-02-24 21:17:16,132 WARN org.apache.hadoop.hive.conf.HiveConf: [main]:
HiveConf of name hive.entity.capture.input.URI does not exist
2016-02-24 21:17:16,150 INFO org.apache.hadoop.security.UserGroupInformation:
[main]: Login successful for user
hive/[email protected] using keytab file hive.keytab
2016-02-24 21:17:16,150 INFO org.apache.hive.service.cli.CLIService: [main]:
SPNego httpUGI not created, spNegoPrincipal: , ketabFile:
2016-02-24 21:17:16,154 INFO hive.metastore: [main]: Trying to connect to
metastore with URI thrift://host-10-17-81-201.coe.cloudera.com:9083
2016-02-24 21:17:16,217 INFO hive.metastore: [main]: Opened a connection to
metastore, current connections: 1
2016-02-24 21:17:16,218 INFO hive.metastore: [main]: Connected to metastore.
{code}
And then none of the functions will be available for use as HS2 does not
re-register them after HMS is up and ready.
This is not desired behaviour, we shouldn't allow HS2 to be in a servicing
state if function list is not ready. Or, maybe instead of initialize the
function list when HS2 starts, try to load the function list when each Hive
session is created. Of course we can have a cache of function list somewhere
for better performance, but we would better decouple it from class Hive.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
