Solaris and FreeBSD dtrace facility supports this functionality. Unfortunately, Linux rejected dtrace for license issues, and instead did... nothing. Ced On 10 July 2018 at 04:28, Peter Scott <pjscott@xxxxxxxxxxxx> wrote: > Hello. I am with the institutional hosting service at NASA's Jet Propulsion > Laboratory and we have been trying to find the answer to an apparently > simple question. > > We are running an NFSv4 server on Centos 7 and we need to get the server to > tell us which files it thinks are locked by which clients. This is because > we have observed failure modes where something apparently has a lock > (because attempting to lock the file again blocks) but we can't find a > client that has the lock. Finding out what the server believes would be > critical to troubleshooting this. > > We tracked down Trond Myklebust and Neil Brown and conversation suggests > that this is a function that is (a) not currently available and (b) > reasonable to ask for. So this is me suggesting that an interface be > provided to have knfsd output its list of locked files and clients. > > Regards, > Peter Scott > Office of the CIO > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Cedric Blancher <cedric.blancher@xxxxxxxxx> [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
