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https://issues.apache.org/jira/browse/HIVE-18278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
shining updated HIVE-18278:
---------------------------
Description:
Launch a hive cli client, it will be build 4 connections on postgresql, when
hive cli is openned 20 or more, the postgresql connections will be
Exhausted(default 100 connections). Then execute the command will be error:
{noformat}
hive> show tables;
FAILED: Error in acquiring locks: java.lang.RuntimeException:
java.sql.SQLException:
Unable to open a test
connection to the given database.
JDBC url =
jdbc:postgresql://101.12.4.1:5432/hive, username = hive.
Terminating connection pool
(set lazyInit to true if you expect to start your database after your app).
Original Exception:
------org.postgresql.util.PSQLException:
FATAL: remaining connection slots are reserved for
non-replication superuser connections
{noformat}
I also test in hive 1.1, When open a new hive cli, the connection number of
pgsql doesnot increase. Why the hive2.3 occupy 4 connection? Anyone else know
this?
was:
Launch a hive cli client, it will be build 4 connections on postgresql, when
hive cli is openned 20 or more, the postgresql connections will be
Exhausted(default 100 connections). Then execute the command will be error:
{noformat}
hive> show tables;
FAILED: Error in acquiring locks: java.lang.RuntimeException:
java.sql.SQLException: Unable to open a test connection to the given database.
JDBC url = jdbc:postgresql://101.12.4.1:5432/hive, username = hive. Terminating
connection pool (set lazyInit to true if you expect to start your database
after your app). Original Exception: ------
org.postgresql.util.PSQLException: FATAL: remaining connection slots are
reserved for non-replication superuser connections
{noformat}
I also test in hive 1.1, When open a new hive cli, the connection number of
pgsql doesnot increase. Why the hive2.3 occupy 4 connection? Anyone else know
this?
> Error in acquiring locks: java.lang.RuntimeException: java.sql.SQLException:
> Unable to open a test connection to the given database.
> ------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-18278
> URL: https://issues.apache.org/jira/browse/HIVE-18278
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 2.3.0
> Environment: Hive:2.3.0
> MetaStore DB : postgresql
> Reporter: shining
>
> Launch a hive cli client, it will be build 4 connections on postgresql, when
> hive cli is openned 20 or more, the postgresql connections will be
> Exhausted(default 100 connections). Then execute the command will be error:
> {noformat}
> hive> show tables;
> FAILED: Error in acquiring locks: java.lang.RuntimeException:
> java.sql.SQLException:
> Unable to open a test
> connection to the given database.
> JDBC url =
> jdbc:postgresql://101.12.4.1:5432/hive, username = hive.
> Terminating connection
> pool (set lazyInit to true if you expect to start your database after your
> app).
> Original Exception:
> ------org.postgresql.util.PSQLException:
> FATAL: remaining connection slots are reserved for
> non-replication superuser connections
> {noformat}
> I also test in hive 1.1, When open a new hive cli, the connection number of
> pgsql doesnot increase. Why the hive2.3 occupy 4 connection? Anyone else
> know this?
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