Re: Running Valgrind on ndmp

Hi,
Can we get any help here ?

Thanks,
Pallavi

On Thu, Sep 5, 2019, 4:28 PM Pallavi Shinde <[email protected]> wrote:

> Hi,
>
> Comments prefixed with [PS] below.
>
> > 1.      service ndmpd stop
> > 2.       service ndmpd start
> > 3.       valgrind -v --num-callers=50 --log-file=ndmp_valgrind_30_8.log
> --leak-check=full /usr/local/ndmp/ndmpd
> >
> > echo $? Returns 1 after the 3rd command.
>
> Does running ndmpd "by hand" work as the third step?
> 3. /usr/local/ndmp/ndmpd &   # start in background, note the PID
> 4. ps -ef   # does ndmpd show with the same PID as given by the shell?
>
> [PS] In step 3, the process, if run by hand (/usr/local/ndmp/ndmpd &)
> exits immideiately.
>
> If "service ndmpd start" does anything other than execute
> /usr/local/ndmp/ndmpd,
> then it may be necessary to add a level of indirection through a shell
> script
> that runs valgrind:
>
> 1. service ndmpd stop
> 2. mv /usr/local/ndmp/ndmpd /usr/local/ndmp/ndmpd.real
> 3. cat >/usr/local/ndmp/ndmpd <<!EOF!
> #!/bin/bash
> exec valgrind -v --num-callers=50 --log-file=ndmp_valgrind_30_8.log
> --leak-check=full /usr/local/ndmp/ndmpd.real
> !EOF!
> 4. chmod +x /usr/local/ndmp/ndmpd
> 5. service ndmpd start
>
> [PS] service ndmpd start FAILS to run using a wrapper.
>
> $ service ndmpd stop
> Stopping ndmpd:                                            [  OK  ]
>
> $ service ndmpd start
> Starting ndmpd:                                            [FAILED]
>
> $ cat /usr/local/ndmp/ndmpd
> #!/bin/bash
> #/usr/local/ndmp/ndmpd.real
> exec valgrind -v --num-callers=50 --log-file=ndmp_valgrind_04_09.log
> --leak-check=full /usr/local/ndmp/ndmpd.real
>
> $ ps -ef | grep valgrind
> root     22481     1  0 11:38 ?        00:00:00 valgrind -v
> --num-callers=50 --log-file=ndmp_valgrind_04_09.log --leak-check=full
> /usr/local/ndmp/ndmpd.real
> root     23269  4513  0 11:42 pts/4    00:00:00 grep --color=auto valgrind
>
> $ ps -ef | grep ndmpd
> root     22481     1  0 11:38 ?        00:00:00 valgrind -v
> --num-callers=50 --log-file=ndmp_valgrind_04_09.log --leak-check=full
> /usr/local/ndmp/ndmpd.real
> root     23309  4513  0 11:42 pts/4    00:00:00 grep --color=auto ndmpd
>
> As  per our observation ndmp internally starts session monitor. But in
> this case we were not able to see the session monitor and ndmp.
>
> Is there any other way to run valgrind on ndmp ?
>
> Thanks,
> Pallavi
>
> On Fri, Aug 30, 2019, 8:19 PM John Reiser <[email protected]> wrote:
>
>> > 1.      service ndmpd stop
>> > 2.       service ndmpd start
>> > 3.       valgrind -v --num-callers=50 --log-file=ndmp_valgrind_30_8.log
>> --leak-check=full /usr/local/ndmp/ndmpd
>> >
>> > echo $? Returns 1 after the 3rd command.
>>
>> Does running ndmpd "by hand" work as the third step?
>> 3. /usr/local/ndmp/ndmpd &   # start in background, note the PID
>> 4. ps -ef   # does ndmpd show with the same PID as given by the shell?
>>
>> If "service ndmpd start" does anything other than execute
>> /usr/local/ndmp/ndmpd,
>> then it may be necessary to add a level of indirection through a shell
>> script
>> that runs valgrind:
>>
>> 1. service ndmpd stop
>> 2. mv /usr/local/ndmp/ndmpd /usr/local/ndmp/ndmpd.real
>> 3. cat >/usr/local/ndmp/ndmpd <<!EOF!
>> #!/bin/bash
>> exec valgrind -v --num-callers=50 --log-file=ndmp_valgrind_30_8.log
>> --leak-check=full /usr/local/ndmp/ndmpd.real
>> !EOF!
>> 4. chmod +x /usr/local/ndmp/ndmpd
>> 5. service ndmpd start
>>
>> --
>>
>>
>>
>> _______________________________________________
>> Valgrind-users mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/valgrind-users
>>
>

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