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Can SIGTERM to main process kill the detached threads?
Post 302220193 by deepti_v25 on Thursday 31st of July 2008 05:40:02 AM
07-31-2008
Can SIGTERM to main process kill the detached threads?
Hi,
I am stuck up with a strange problem.
I am writing an application - a kinda tracker that reads data from memcache and invokes theads to process each record of the memcache.
I dont want to join all my threads because my tracker should poll the cache in regular intervals say sum 300 seconds without waiting for the child thread completion.
To accomplish the above task, I created a detachable tracker thread for each poll of memcache which in turn creates worker threads n joins them.
so my main tracker thread need not wait for the detached thread and can start polling the cache at a stipulated time.
Now, when i tried to give a "kill <process_id>", i observed that only my main thread is killed whereas the detached thread and worker threads are still running!!!
Ideally , a kill to main should quit all my detached threads too...ne ideas/thoughts on how to handle this?? Kindly help
I am stuck up with a strange problem.
I am writing an application - a kinda tracker that reads data from memcache and invokes theads to process each record of the memcache.
I dont want to join all my threads because my tracker should poll the cache in regular intervals say sum 300 seconds without waiting for the child thread completion.
To accomplish the above task, I created a detachable tracker thread for each poll of memcache which in turn creates worker threads n joins them.
so my main tracker thread need not wait for the detached thread and can start polling the cache at a stipulated time.
Now, when i tried to give a "kill <process_id>", i observed that only my main thread is killed whereas the detached thread and worker threads are still running!!!
Ideally , a kill to main should quit all my detached threads too...ne ideas/thoughts on how to handle this?? Kindly help
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LEARN ABOUT ULTRIX
kill
kill(1) General Commands Manual kill(1) Name kill - send a signal to a process Syntax kill [-sig] processid... kill -l Description The command sends the TERM (terminate, 15) signal to the specified processes. If a signal name or number preceded by `-' is given as first argument, that signal is sent instead of terminate. For further information, see The terminate signal kills processes that do not catch the signal; `kill -9 ...' is a sure kill, as the KILL (9) signal cannot be caught. By convention, if process number 0 is specified, all members in the process group (that is, processes resulting from the current login) are signaled. This works only if you use and not if you use To kill a process it must either belong to you or you must be superuser. The process number of an asynchronous process started with `&' is reported by the shell. Process numbers can also be found by using It allows job specifiers ``%...'' so process ID's are not as often used as arguments. See for details. Options -l Lists signal names. The signal names are listed by `kill -l', and are as given in /usr/include/signal.h, stripped of the common SIG prefix. See Also csh(1), ps(1), kill(2), sigvec(2) kill(1)