[Queue-developers] Fwd: [queue - Open Discussion] RE: queued's deadlock 1.20.1

[W. G. K. <wer...@ya...>]

----- Forwarded message from no...@so... -----
Date: Wed, 2 Aug 2000 15:53:05 -0700
From: no...@so...
Reply-To: no...@so...
Subject: [queue - Open Discussion] RE: queued's deadlock 1.20.1
To: no...@so...

Read and respond to this message at:
http://sourceforge.net/forum/message.php?msg_idE330
By: wkrebs

Around line 3021 in queued.c is there is an #undef TRANSMIT_DEBUG

If you comment this line out, or remove it, QueueD will fork off another process
whenever it wants to spool a job out to another machine. This should end the
deadlock situation.

However, one thing the call to wakeup() does is determine if there are any other
hosts available in this batch queue to send the job to. If the answer is no, it
stops trying for the moment --- 120 seconds or the next submission into the
queue. The fork() loses this information, so I'm not sure how it will behave.
(This can besolved with some sort IPC; open a pipe probably, but it will add a
lot of code that doesn't do a whole lot except determine a return value.)

Hopefully, it will fix the deadlock problem, though.

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