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We are having a open social app. which is developed on jsp/java+MySQL combination.and Tomcat5 is webserver. every now and then ,I am getting this error

Can't create a new thread (errno 12); if you are not out of available memory,
you can consult the manual for a possible OS-dependent bug

please let me know If u guys have come across it.

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Several reasons come to mind. If this is happening once in awhile you have to check whether you have too many open connections. Starts by looking at mysql processlist. Each thread allocates memory up to the max setting in your mysql config. show processlist; – Vangel Feb 29 at 20:14
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Yes ... found this error on my MacBook with OS X 10.5.8 -- Mac works off line but will not connect "Could not connect: Can't create a new thread (errno12); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug."

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Are you out of memory when this happens?

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