Ulimit settings in Oracle 11g on Linux 5

Posted by Stuart on Server Fault See other posts from Server Fault or by Stuart
Published on 2012-09-11T12:28:29Z Indexed on 2012/09/11 15:40 UTC
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linux

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oracle11g

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ulimit

Is there an issue with "Ulimit -Hn" being set too low (at 1024) when (Oracle recommend 65536)? This is for Oracle 64-bit 11g on Linux 5.

It is one of the settings that appears to be woefully short of its recommendation. But I am also aware that the database server in question is an Oracle Data Guard Local Standby and should only really have a connection or two from its Primary database server (to ship the redo logs across).

The Local Standby database server has 'hung' about 3 times in as many months and then requires a reboot. I do not have access to this server, so rely on others to look at logs etc. The sanity check on kernel params uncovered the low value for "ulimit -Hn". Has anyone ever seen that 'low' value cause a hang or crash?

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