Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-7181

Submitting random writes using 4MB RPC

    XMLWordPrintable

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.9.0
    • Lustre 2.7.0, Lustre 2.8.0
    • None
    • 3
    • 9223372036854775807

    Description

      After ran "lctl set_param osc.*.max_pages_per_rpc=4M", we ran 4k random write test with IOR and easily hit this problem.

      After some test, we found that the biggest value of msgsize is 16384 for bulk write, while req->rq_reqbuf_len is only 8192.

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-4755 ASSERTION( req->rq_reqbuf_len >= msgsize ) failed when using 4MB RPC

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

          Bug - A problem which impairs or prevents the functions of the product. LU-8135 sanity test_101g fails with 'not all RPCs are 16 MiB BRW rpcs'

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

          Activity

            People

              wc-triage WC Triage
              adilger Andreas Dilger
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: