Re: [gomd-devel] <DAEMON>: major update for chpox support (register+checkpoint are done)

[Matthias Rechenburg]

Hi JP,

sounds all good to me and sorry for not being able to test it yet.
It is still on my todo but I see some more busy weeks coming here.
Please excuse further delays.

On Sonntag 02 November 2003 12:49, Gian Paolo Ghilardi wrote:
> Hi all.
>
> Sorry for disturbing you continously... ;)

you never disturb ;)

> Now the registration+checkpoint mechanism works (yesterday I worked only on
> the registration stuff).

:)))

> If you launch the daemon with the --test-chpox/-tc now you''ll be asked to
> enter a valid PID that will be registered and checkpointed 3 times. As
> usual in the CVS notes below you'll find an output example.
>
> ASAP I'll make the chpoxSupport class a thread (so the main app will be
> able to work).
> I thought to add a queue for pending registrations&dumps so the (single)
> thread will be able to do its job in the cleanest and safest way possibile
> (to avoid race conditions on thread access & function calls).
>
> I think I'll (optimistically) finish the chpox support stuff in a few
> weeks.

cool busy JP

>
> Byez.
>
> <rejected>
>
> PS:  patch from Busybee (Mirko Caserta) were applied to compils.h and
> install.sh files (thanks Mirko!).

great, thx to both of you


cheers,

Matt

>
>
> << CVS NOTES >>
>
> IN compile.sh
> (f) typos (signaled me by Busybee => thanks!)
>
> IN install.sh
> (f) typos (signaled me by Busybee => thanks!)
>
>
> NOTE: major update for chpoxSupport class
>
> IN chpoxProc.cpp
> (m) change from CHPOX_MAX_DUMPS to CHPOX_MAX_DUMPS_PER_PROCESS
>
> IN chpoxSupport.h/chpoxSupport.cpp
> (+) added dumpRegisteredProces() function => this function invoked process
> dump (==checkpointing).
> (+) in registerProcess() function => lots of changes (clenaups, checkpoint
> call, check is dump file was correctly generated, wait before checking for
> dump file,...)
> (+) in printRegisteredProcList() => cosmetics
> (+) tons of comments.
>
> IN constants.h
> (+) added #define CHPOX_DUMP_SIGNAL (signal id for checkpointing)
> (m) changed #define CHPOX_MAX_DUMPS to CHPOX_MAX_DUMPS_PER_PROCESS
> (m) changed #define CHPOX_DUMP_DIR /var/tmp to /tmp
>
> IN csCollector.h/csCollector.cpp
> (+) now the user will be asked for a valid PID to test the
> testRegisterProcess() function.
>
> OUTPUT EXAMPLE:
>
> [...]
>
> ***************************************
> *    TESTING CHPOX SUPPORT (ALPHA)    *
> ***************************************
>
> [TST]: this code is experimental! :)
> [TST]: please enter the PID of process to be checkpointed: 17719
>
> [TST]: round #1
> [TST]: try registering process with pid=17719
> [CHP]: pid: [17719] cmdline: [/bin/bash]
> [CHP]: registering the libs needed by program /bin/bash.
>        => /lib/libdl.so.2
>        => /lib/libc.so.6
>        => /lib/ld-linux.so.2
> [CHP]: the program needs 3 libs.
> [CHP]: registering the app....
>        => 17719:31:9:/tmp/bash_20031102_123131_17719.dump
> [CHP]: dump signal (31) succesfully sent to target process (pid=17719)
> [CHP]: wait 10 seconds before continuing...
> [CHP]: dump file correctly created
> (file=/tmp/bash_20031102_123131_17719.dump)
> [CHP]: added a new entry to the list of registered procs.
> [CHP]: number of saved dumps for the registered proc: 1
> [CHP]: the list of registered procs contains 1 entries.
>
> [TST]: round #2
> [TST]: try registering again process with pid=17719
>            to test the saved-procs linked list.
> [CHP]: pid: [17719] cmdline: [/bin/bash]
> [CHP]: registering the libs needed by program /bin/bash.
>        => /lib/libdl.so.2
>        => /lib/libc.so.6
>        => /lib/ld-linux.so.2
> [CHP]: the program needs 3 libs.
> [CHP]: registering the app....
>        => 17719:31:9:/tmp/bash_20031102_123141_17719.dump
> [CHP]: dump signal (31) succesfully sent to target process (pid=17719)
> [CHP]: wait 10 seconds before continuing...
> [CHP]: dump file correctly created
> (file=/tmp/bash_20031102_123141_17719.dump)
> [CHP]: proc yet registered.
> [CHP]: updated the proc entry.
> [CHP]: number of saved dumps for the registered proc: 2
>
> [TST]: round #3
> [TST]: try registering again process with pid=17719
>            to test the saved-procs linked list.
> [CHP]: pid: [17719] cmdline: [/bin/bash]
> [CHP]: registering the libs needed by program /bin/bash.
>        => /lib/libdl.so.2
> [CHP]: the program needs 1 libs.
> [CHP]: registering the app....
>        => 17719:31:9:/tmp/bash_20031102_123151_17719.dump
> [CHP]: dump signal (31) succesfully sent to target process (pid=17719)
> [CHP]: wait 10 seconds before continuing...
> [CHP]: dump file correctly created
> (file=/tmp/bash_20031102_123151_17719.dump)
> [CHP]: proc yet registered.
> [CHP]: updated the proc entry.
> [CHP]: number of saved dumps for the registered proc: 3
>
> [TST]: results...
> [TST]: you should see just one entry with 3 dumps
>        => Entry #1
>           Required libs (3 libs found):
>           - /lib/libdl.so.2
>           - /lib/libc.so.6
>           - /lib/ld-linux.so.2
>           Dump filenames (3 dump files found):
>           - /tmp/bash_20031102_123131_17719.dump
>           - /tmp/bash_20031102_123141_17719.dump
>           - /tmp/bash_20031102_123151_17719.dump
>
> [TST]: notice we waited 10 seconds between a round and another one.
> [TST]: test end.
>
>
>
> _______________________________________________
> gomd-devel mailing list
> address@hidden
> http://mail.nongnu.org/mailman/listinfo/gomd-devel

-- 
E-mail  :  address@hidden
www     : http://www.openmosixview.com
an openMosix-cluster management GUI

Don't drink as root!                            ESC:wq