Re: DCD and TCP timeout
From: Riyaj Shamsudeen <riyaj.shamsudeen_at_gmail.com>
Date: Tue, 12 Nov 2013 16:28:38 -0800
Message-ID: <CAA2DszzKVfQepDOpPg4jGScTM+QNeMQAhAcWxdfQwXyHWHjEgg_at_mail.gmail.com>
Hello Amir
That document has a bug. I think, the author of the document intended to reduce tcp_retries2 to 5, not tcp_retries. I just found another document 1087365.1 and that is accurately specifying following values. Leave tcp_retries alone for now. Try with the following setup and test it.
Date: Tue, 12 Nov 2013 16:28:38 -0800
Message-ID: <CAA2DszzKVfQepDOpPg4jGScTM+QNeMQAhAcWxdfQwXyHWHjEgg_at_mail.gmail.com>
Hello Amir
That document has a bug. I think, the author of the document intended to reduce tcp_retries2 to 5, not tcp_retries. I just found another document 1087365.1 and that is accurately specifying following values. Leave tcp_retries alone for now. Try with the following setup and test it.
net.ipv4.tcp_keepalive_time 3000 net.ipv4.tcp_retries2 5 net.ipv4.tcp_syn_retries 1
Cheers
Riyaj Shamsudeen
Principal DBA,
Ora!nternals - http://www.orainternals.com - Specialists in Performance,
RAC and EBS
Blog: http://orainternals.wordpress.com/
Oracle ACE Director and OakTable member <http://www.oaktable.com/>
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-- http://www.freelists.org/webpage/oracle-lReceived on Wed Nov 13 2013 - 01:28:38 CET