Change in vdsm[master]: supervdsm: Add zombiereaper to supervdsm

danken at redhat.com danken at redhat.com
Mon Aug 11 00:05:00 UTC 2014


Dan Kenigsberg has posted comments on this change.

Change subject: supervdsm: Add zombiereaper to supervdsm
......................................................................


Patch Set 10: Code-Review-1

(1 comment)

http://gerrit.ovirt.org/#/c/28915/10/vdsm/supervdsmServer
File vdsm/supervdsmServer:

Line 244:                 # If it didn't fail because process is already dead
Line 245:                 if e.errno != errno.ESRCH:
Line 246:                     raise
Line 247: 
Line 248:             raise Timeout()
I thought that our problem is actually here - we raise Timeout without calling terminate() (as we cannot wait for the subprocess any longer). The process is then left untracked, ultimately turning into a zombie.

terminate() waits on the child, so zombiereaper is not needed on the positive flow; only "except:" (and only when terminate fails) should be used to autoreap the child.
Line 249: 
Line 250:         try:
Line 251:             res, err = pipe.recv()
Line 252:             pipe.send("Bye")


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Gerrit-MessageType: comment
Gerrit-Change-Id: I5333caf7a1162c5d783f556bb9204fb74d1ab469
Gerrit-PatchSet: 10
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Dima Kuznetsov <dkuznets at redhat.com>
Gerrit-Reviewer: Dan Kenigsberg <danken at redhat.com>
Gerrit-Reviewer: Dima Kuznetsov <dkuznets at redhat.com>
Gerrit-Reviewer: Yaniv Bronhaim <ybronhei at redhat.com>
Gerrit-Reviewer: automation at ovirt.org
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-HasComments: Yes


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