RE: [External] Facing error frequently on tomcat app server

Hi Vijay,

Thanks for the update. We have same configuration on different like test, uat and stage.
But facing issue only on stage with below error.

Thanks and Regards,
Lakshmikanth.Ch

From: Vijaykumar Jain [mailto:vjain(at)opentable(dot)com]
Sent: Monday, January 28, 2019 1:42 PM
To: lakshmikanth chintakindi
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: [External] Facing error frequently on tomcat app server

The above logs just shows tomcat has some issue connecting to postgresql server, but not helpful beyond that.
There may be a few things to check.

i guess the list here is good for reference to check
https://stackoverflow.com/questions/15806083/org-postgresql-util-psqlexception-the-connection-attempt-failed

Also, do you connect to postgresql server directly or via some pooling like pgbouncer?

Regards,
Vijay

On Mon, Jan 28, 2019 at 1:28 PM lakshmikanth chintakindi <lakshmikanth_ch(at)optum(dot)com<mailto:lakshmikanth_ch(at)optum(dot)com>> wrote:
Hi Team,

We are facing issue frequently on one of the tomcat app server with the below error.
After restarting the JVM the issue will resolves and again it occurs after 1-2days.Could you please help on this below postgres error.

Db server
postgres --version
postgres (PostgreSQL) 10.3

App Server
Server version: Apache Tomcat/6.0.29
Server built: July 19 2010 1458
Server number: 6.0.0.29
OS Name: Linux
OS Version: 2.6.32-754.3.5.el6.x86_64
Architecture: amd64
JVM Version: 1.8.0_121-b13
JVM Vendor: Oracle Corporation

Jan 26, 2019 3:27:51 AM org.postgresql.Driver connect
SEVERE: Connection error:
org.postgresql.util.PSQLException: The connection attempt failed.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:275)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:194)
at org.postgresql.Driver.makeConnection(Driver.java:450)
at org.postgresql.Driver.connect(Driver.java:252)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at com.uhg.ihr.jedi.database.DataSource.<init>(DataSource.java:31)
at com.uhg.ihr.jedi.database.SqlDatabase.newDataSource(SqlDatabase.java:400)
at com.uhg.ihr.jedi.database.SqlDatabase.<init>(SqlDatabase.java:170)
at com.uhg.ihr.jedi.database.postgresql.PostgresqlDatabase.<init>(PostgresqlDatabase.java:99)
at com.uhg.ihr.jedi.database.Database.open(Database.java:145)
at com.uhg.ihr.jedi.database.Database.open(Database.java:157)
at com.uhg.ihr.cache.resourcepool.DatabasePool.createResourceImpl(DatabasePool.java:226)
at com.uhg.ihr.cache.resourcepool.DatabasePool.createResourceImpl(DatabasePool.java:32)
at com.uhg.ihr.cache.resourcepool.ResourcePool.createResource(ResourcePool.java:349)
at com.uhg.ihr.cache.resourcepool.ResourcePool.get(ResourcePool.java:217)
at com.uhg.ihr.cache.resourcepool.BoundedResourcePool.get(BoundedResourcePool.java:78)
at com.uhg.ihr.service.mq.fair.DefaultFairQueueComponentQueue.getFairCount(DefaultFairQueueComponentQueue.java:46)
at com.uhg.ihr.service.message.fair.DefaultFairHealthDataMessageQueueService$ComponentQueueMonitorTask.adjustFeederThreadPool(DefaultFairHealthDataMessageQueueService.java:251)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at com.uhg.ihr.service.message.fair.DefaultFairHealthDataMessageQueueService$ComponentQueueMonitorTask.run(DefaultFairHealthDataMessageQueueService.java:217)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.EOFException
at org.postgresql.core.PGStream.receiveChar(PGStream.java:290)
at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:418)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:222)
... 28 more

Thanks and Regards,
Lakshmikanth.Ch

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