Core Dump of a process in Red Hat Linux 5.9 Post: 302953086

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Operating Systems Linux Red Hat Core Dump of a process in Red Hat Linux 5.9 Post 302953086 by Anjan Ganguly on Tuesday 25th of August 2015 09:34:43 AM

08-25-2015

Registered User

But I can not predict when my application stalls?It is not definite?Can you tell me the procedure (step by step) in gcore to take the core dump.I have tested the following and it is dumping in running condition.
The following commands are executed to take the dump.

1) Ulimit –c (To check the limit of dump file which will be created)
In normal system it yields ‘0’. Means no dump file will be created.
2) Ulimit –c unlimited (to make the volume of dump file as unlimited)
You should get ‘unlimited’ as output if you again type ‘’ulimit –c’’ command in $ prompt.
3) gdb --pid = ‘10008’ (10008 is the PID of WEBFGSERVER in linux system where WEBFGSERVER is running)
You will be redirected to gdb prompt.
4) Typed the following in gdb prompt.
gdb> gcore. It will take 45 secs to 1 minute to create the memory dump. When you are redirected to gdb> type the following.
5) gdb> quit
6) It will create a file named core.10008 in the directory you are in.
Is there any thing wrong in it.If not then how the above steps can be used to core dump immediately after the process stalls?

Anjan Ganguly

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LEARN ABOUT CENTOS

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)