( Debugging server

Info Catalog ( Porting ( Porting ( Debugging client
 E.1 Debugging a MySQL Server
 If you are using some functionality that is very new in MySQL, you can
 try to run `mysqld' with the `--skip-new' (which will disable all new,
 potentially unsafe functionality) or with `--safe-mode' which disables
 a lot of optimization that may cause problems.   Crashing.
 If `mysqld' doesn't want to start, you should verify that you don't have
 any `my.cnf' files that interfere with your setup!  You can check your
 `my.cnf' arguments with `mysqld --print-defaults' and avoid using them
 by starting with `mysqld --no-defaults ...'.
 If `mysqld' starts to eat up CPU or memory or if it "hangs," you can
 use `mysqladmin processlist status' to find out if someone is executing
 a query that takes a long time.  It may be a good idea to run
 `mysqladmin -i10 processlist status' in some window if you are
 experiencing performance problems or problems when new clients can't
 The command `mysqladmin debug' will dump some information about locks
 in use, used memory and query usage to the MySQL log file. This may
 help solve some problems.  This command also provides some useful
 information even if you haven't compiled MySQL for debugging!
 If the problem is that some tables are getting slower and slower you
 should try to optimize the table with `OPTIMIZE TABLE' or `myisamchk'.
  MySQL Database Administration. You should also check the slow
 queries with `EXPLAIN'.
 You should also read the OS-specific section in this manual for
 problems that may be unique to your environment.   Operating
 System Specific Notes.


* Compiling for debugging     Compiling MySQL for Debugging
* Making trace files          Creating Trace Files
* Using gdb on mysqld         Debugging `mysqld' under `gdb'
* Using stack trace           Using a Stack Trace
* Using log files             Using Log Files to Find Cause of Errors in `mysqld'
* Reproduceable test case     Making a Test Case If You Experience Table Corruption
Info Catalog ( Porting ( Porting ( Debugging client
automatically generated byinfo2html