Messages in this thread | | | From | "Kerl, John" <> | Subject | RE: kill task in TASK_UNINTERRUPTIBLE | Date | Thu, 9 May 2002 11:00:29 -0700 |
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Please, this could turn into a flamewar:
* Users hate the NFS hangs. * Applications need them for consistency.
Is there really a solution that makes everyone happy when NFS servers are down? If so, I haven't seen it in my career working with NFS. (Unless NFS v3 helps ...) All the network admins I've known choose non-interruptible, tolerate the complaining users when a server is down, and just work on getting the server back on-line ASAP.
> -----Original Message----- > From: Andrew Theurer [mailto:habanero@us.ibm.com] > Sent: Thursday, May 09, 2002 10:39 AM > To: vda@port.imtp.ilyichevsk.odessa.ua > Cc: linux-kernel@vger.kernel.org > Subject: Re: kill task in TASK_UNINTERRUPTIBLE > > > > > Denis Vlasenko wrote: > > > > On 8 May 2002 21:27, george anzinger wrote: > > > > > > Is there any way i can kill a task in > > > > > > TASK_UNINTERRUPTIBLE state ? > > > > > No. Everytime you see hung task in this state > > > > > you see kernel bug. > > > > > Somebody correct me if I am wrong. > > > > > > > > Except for processes accessing NFS files while the NFS > server is down: > > > > they will be stuck in TASK_UNINTERRUPTIBLE until the > NFS server comes > > > > back up again. > > > > > > A REALLY good argument for puting timeouts on your NSF > mounts! Don't > > > leave home without them. > > > > Timeouts may be a bad idea: imagine large (LARGE) database > > which you don't want to repair due to lost data over NFS. > > Better let it hang in NFS i/o even for hours while you are > > repairing your network. > > I'm not sure using an NFS mount for a big important DB would > be prudent > in the first place. I dunno, maybe there are situations where it's > unavoidable. I just really cringe when hearing about DB volumes over > NFS. > > -Andrew > - > To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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