Increase the TCP keepalive window. It should fix your issue. To debug more establish and snif the packets from your client end.
Wireshark should say what's happening.
From: Debraj Manna <subharaj.manna@xxxxxxxxx>
Sent: Saturday, June 1, 2024 5:18:02 PM
To: Muhammad Ikram <mmikram@xxxxxxxxx>
Cc: pgsql-admin <pgsql-admin@xxxxxxxxxxxxxx>
Subject: Re: Timeouts in Postgresql JDBC Driver
Sent: Saturday, June 1, 2024 5:18:02 PM
To: Muhammad Ikram <mmikram@xxxxxxxxx>
Cc: pgsql-admin <pgsql-admin@xxxxxxxxxxxxxx>
Subject: Re: Timeouts in Postgresql JDBC Driver
Thanks for replying. I am using hikari so following defaults are already set.
connectionTimeout 30 secs
idleTimeout 10 mins
In this case shouldn't the client connection be timed out rather than hanging?
On Sat, 1 Jun, 2024, 16:23 Muhammad Ikram, <mmikram@xxxxxxxxx> wrote:
Hi Debraj,
See which of these option works best for you
Client side Timeouts ... socketTimeout, loginTimeout, connectTimeout
Server side Timeouts ... statement_timeout
If you are using connection pooling e.g. HikariCP then you may set setConnectionTimeout, setIdleTimeout, setMaxLifetime
Regards,Muhammad Ikrambitnine
On Sat, Jun 1, 2024 at 2:41 PM Debraj Manna <subharaj.manna@xxxxxxxxx> wrote:
Hi
I am using Postgresql JDBC Driver 42.7.3 with Postgres 14.9 with default settings.
I am observing sometimes my Postgres Client thread getting stuck like below. I have observed it for about ~12 hours and the thread was stuck like below. Can someone let me know if there are some known issues with the JDBC Driver that I am using or are there any timeout settings that I can set in either the Postgres server or JDBC client level that will allow me to not land in this situation
pool-9-thread-1" #352 prio=5 os_prio=0 cpu=28470.75ms elapsed=175425.73s tid=0x00007fd1a0053e50 nid=0x1cb runnable [0x00007fd17ecfd000]
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.Net.poll(java.base@17.0.10/Native Method)
at sun.nio.ch.NioSocketImpl.park(java.base@17.0.10/NioSocketImpl.java:186)
at sun.nio.ch.NioSocketImpl.park(java.base@17.0.10/NioSocketImpl.java:195)
at sun.nio.ch.NioSocketImpl.implRead(java.base@17.0.10/NioSocketImpl.java:319)
at sun.nio.ch.NioSocketImpl.read(java.base@17.0.10/NioSocketImpl.java:355)
at sun.nio.ch.NioSocketImpl$1.read(java.base@17.0.10/NioSocketImpl.java:808)
at java.net.Socket$SocketInputStream.read(java.base@17.0.10/Socket.java:966)
at sun.security.ssl.SSLSocketInputRecord.read(java.base@17.0.10/SSLSocketInputRecord.java:484)
at sun.security.ssl.SSLSocketInputRecord.readHeader(java.base@17.0.10/SSLSocketInputRecord.java:478)
at sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(java.base@17.0.10/SSLSocketInputRecord.java:70)
at sun.security.ssl.SSLSocketImpl.readApplicationRecord(java.base@17.0.10/SSLSocketImpl.java:1465)
at sun.security.ssl.SSLSocketImpl$AppInputStream.read(java.base@17.0.10/SSLSocketImpl.java:1069)
at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:162)
at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:129)
at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)
at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:74)
at org.postgresql.core.PGStream.receiveChar(PGStream.java:467)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2166)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:371)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:502)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:419)
at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:194)
at org.postgresql.jdbc.PgPreparedStatement.execute(PgPreparedStatement.java:180)
at com.zaxxer.hikari.pool.ProxyPreparedStatement.execute(ProxyPreparedStatement.java:44)
at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.execute(HikariProxyPreparedStatement.java)
...at com.sp.gossiper.producers.GossiperProducerScheduler.readCheckpoint(GossiperProducerScheduler.java:369)
--
Muhammad Ikram
