Connection to mysql server in SYN_SENT
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Sunil
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Published on 2012-04-07T12:35:22Z
Indexed on
2012/04/07
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We are facing a strange problem from last few days between our application server and database server(Mysql): connection to database server from application server hangs in SYN_SENT
state and after that we are not able to make any connection to database server on mysql port(3306). When we checked the netstat
output on database server its in SYN_RECV
state.
What I can figure out is mysql server is receiving the SYN request and responding also and its not reaching to the client hence SYN_RECV
at server side and SYN_SENT
at client side.
I think SYN_SENT
state should go after some time and because of this other db connection attempts to same server should not hang.
Does anybody have any idea how can we resolve this issue?
Out setup details :
Application server: RHEL 5.4, kernel-release = 2.6.18-164.el5, x86_64
Database server: Mysql Version : 5.1.49 RHEL 5.4, kernel-release = 2.6.18-164.el5, x86_64
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