Re: ceph-objectstore-tool import failures

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This ghobject_t which has a pool of -3 is part of the export. This caused the assert:

Read -3/1c/temp_recovering_1.1c_33'50_39_head/head

This was added by "osd: use per-pool temp poolid for temp objects" 18eb2a5fea9b0af74a171c3717d1c91766b15f0c in your branch.

You should skip it on export or recreate it on import with special handling.

David

On 6/19/15 7:38 PM, David Zafman wrote:

Have not seen this as an assert before. Given the code below in do_import() of master branch the assert is impossible (?).

  if (!curmap.have_pg_pool(pgid.pgid.m_pool)) {
cerr << "Pool " << pgid.pgid.m_pool << " no longer exists" << std::endl;
    // Special exit code for this error, used by test code
    return 10;  // Positive return means exit status
  }


David

On 6/19/15 7:25 PM, Sage Weil wrote:
Hey David,

On this run

    /a/sage-2015-06-18_15:51:18-rados-wip-temp---basic-multi/939648

ceph-objectstore-tool is failing to import a pg because the pool doesn't
exist.  It looks like the thrasher is doing an export+import and racing
with a test that is tearing down a pool.  The crash is

  ceph version 9.0.1-955-ge274efa
(e274efa450e99a68c02bcb713c8837d7809f1ec3)
  1: ceph-objectstore-tool() [0xa26335]
  2: (()+0xfcb0) [0x7f10cef18cb0]
  3: (gsignal()+0x35) [0x7f10cd5af425]
  4: (abort()+0x17b) [0x7f10cd5b2b8b]
  5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f10cdf0269d]
  6: (()+0xb5846) [0x7f10cdf00846]
  7: (()+0xb5873) [0x7f10cdf00873]
  8: (()+0xb596e) [0x7f10cdf0096e]
  9: (ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x259) [0xb0ce09]
  10: (ObjectStoreTool::get_object(ObjectStore*, coll_t,
ceph::buffer::list&, OSDMap&, bool*)+0x143f) [0x64829f]
  11: (ObjectStoreTool::do_import(ObjectStore*, OSDSuperblock&, bool,
std::string)+0x13dd) [0x64a62d]
  12: (main()+0x3017) [0x632037]
  13: (__libc_start_main()+0xed) [0x7f10cd59a76d]
  14: ceph-objectstore-tool() [0x639119]

I don't think this is related to my branch.. but maybe?  Have you seen
this?  I rebased onto latest master yesterday.

sage

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