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

You need to attach postgresql logs for anyone to be able to even help you :)
the logs may show issues related to if the server is not up, of is having
issues accepting connections for other reason etc.

Regards,
Vijay

On Mon, Jan 28, 2019 at 3:21 PM lakshmikanth chintakindi <
lakshmikanth_ch(at)optum(dot)com> wrote:

> 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> 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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