Yes, vms and volumes existed across the ceph releases. But the vms were rebooted and the volumes reattached following the upgrade. The vms were all Ubuntu 14.04 before and after the upgrade.

Thanks,
Jon

On 9/12/2016 8:28 PM, shiva rkreddy wrote:
By saying "old clients" did you mean, (a) Client VMs running old Operating System (b) Client VMs/Volumes that are in-use for a long time and across ceph releases ? Was there any tuning done to fix it?

Thanks,

On Mon, Sep 12, 2016 at 3:05 PM, Wido den Hollander <w...@42on.com <mailto:w...@42on.com>> wrote:


    > Op 12 september 2016 om 18:47 schreef "WRIGHT, JON R (JON R)"
    <jonrodwri...@gmail.com <mailto:jonrodwri...@gmail.com>>:
    >
    >
    > Since upgrading to Jewel from Hammer, we're started to see
    HEALTH_WARN
    > because of 'blocked requests > 32 sec'.   Seems to be related to
    writes.
    >
    > Has anyone else seen this?  Or can anyone suggest what the
    problem might be?
    >

    Do you by any chance have old clients connecting? I saw this after
    a Jewel upgrade as well and it was because of very old clients
    still connecting to the cluster.

    Wido

    > Thanks!
    > _______________________________________________
    > ceph-users mailing list
    > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com>
    > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
    <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>
    _______________________________________________
    ceph-users mailing list
    ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com>
    http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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On Mon, Sep 12, 2016 at 3:05 PM, Wido den Hollander <w...@42on.com <mailto:w...@42on.com>> wrote:


    > Op 12 september 2016 om 18:47 schreef "WRIGHT, JON R (JON R)"
    <jonrodwri...@gmail.com <mailto:jonrodwri...@gmail.com>>:
    >
    >
    > Since upgrading to Jewel from Hammer, we're started to see
    HEALTH_WARN
    > because of 'blocked requests > 32 sec'.   Seems to be related to
    writes.
    >
    > Has anyone else seen this?  Or can anyone suggest what the
    problem might be?
    >

    Do you by any chance have old clients connecting? I saw this after
    a Jewel upgrade as well and it was because of very old clients
    still connecting to the cluster.

    Wido

    > Thanks!
    > _______________________________________________
    > ceph-users mailing list
    > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com>
    > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
    <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>
    _______________________________________________
    ceph-users mailing list
    ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com>
    http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
    <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>



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