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  1. Lustre
  2. LU-5703

Quiesce client mountpoints from the server

    Details

    • Type: New Feature
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: Lustre 2.4.3
    • Fix Version/s: None
    • Labels:
      None
    • Rank (Obsolete):
      15964

      Description

      In order to minimize user disruptions NASA performs some system maintenance "Live". Typical maintance includes activities such as adding new compute node or reconfigurations of IB fabric. During such times users jobs are suspend via pbs. Although we are able to suspend user job, which does minimize usage of lustre, it does not stop all lustre client/server activity. Therefore NASA requires:
      1. mechanism to halt and block all lustre client IO.
      2. Halt client/server keep alive ping and all other network traffic.
      3. Clients should be able to recover after the quiesce without eviction.

        Attachments

          Issue Links

          is duplicated by

          New Feature - A new feature of the product, which has yet to be developed. LU-13078 mgs trigger umount of clients

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-3290 disallow ptlrpc RPCs with old client XIDs

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Technical task - A technical task. LU-13521 WBC: special readdir() handling for root WBC directory

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open
          is related to

          Technical task - A technical task. LU-13010 WBC: Reopen the file when WBC EX lock revoking

          • Blocker - Blocks development and/or testing work, production could not run.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. LU-18 Allow 100k open files on single client

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-7236 connections on demand

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

            Activity

              People

              • Assignee:
                pjones Peter Jones
                Reporter:
                mhanafi Mahmoud Hanafi
              • Votes:
                1 Vote for this issue
                Watchers:
                14 Start watching this issue

                Dates

                • Created:
                  Updated: