(mysql.info.gz) Not enough file handles
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(mysql.info.gz) Cannot initialize character set
(mysql.info.gz) Common errors
A.2.17 File Not Found
---------------------
If you get `ERROR '...' not found (errno: 23)', `Can't open file: ...
(errno: 24)', or any other error with `errno 23' or `errno 24' from
MySQL, it means that you haven't allocated enough file descriptors for
the MySQL server. You can use the `perror' utility to get a
description of what the error number means:
shell> perror 23
Error code 23: File table overflow
shell> perror 24
Error code 24: Too many open files
shell> perror 11
Error code 11: Resource temporarily unavailable
The problem here is that `mysqld' is trying to keep open too many files
simultaneously. You can either tell `mysqld' not to open so many files
at once or increase the number of file descriptors available to
`mysqld'.
To tell `mysqld' to keep open fewer files at a time, you can make the
table cache smaller by reducing the value of the `table_cache' system
variable (the default value is 64). Reducing the value of
`max_connections' also will reduce the number of open files (the
default value is 100).
To change the number of file descriptors available to `mysqld', you can
use the `--open-files-limit' option to `mysqld_safe' or (as of MySQL
3.23.30) set the `open_files_limit' system variable. Server
system variables. The easiest way to set these values is to add an
option to your option file. Option files. If you have an old
version of `mysqld' that doesn't support setting the open files limit,
you can edit the `mysqld_safe' script. There is a commented-out line
`ulimit -n 256' in the script. You can remove the `#' character to
uncomment this line, and change the number `256' to set the number of
file descriptors to be made available to `mysqld'.
`--open-files-limit' and `ulimit' can increase the number of file
descriptors, but only up to the limit imposed by the operating system.
There is also a "hard" limit that can be overridden only if you start
`mysqld_safe' or `mysqld' as `root' (just remember that you also need
to start the server with the `--user' option in this case so that it
does not continue to run as `root' after it starts up). If you need to
increase the operating system limit on the number of file descriptors
available to each process, consult the documentation for your system.
* If you run the `tcsh' shell, `ulimit' will not work! `tcsh'
will also report incorrect values when you ask for the current limits.
In this case, you should start `mysqld_safe' using `sh'.
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(mysql.info.gz) Cannot initialize character set
(mysql.info.gz) Common errors
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