Ceph - Virtual Machines(KVM) shutdown while increasing the Placement Groups (PGs) with assert(m_seed < old_pg_num)

Solution In Progress - Updated -

Issue

  • Ceph - Virtual Machines(KVM) shutdown while increasing the Placement Groups (PGs) with assert(m_seed < old_pg_num)
  • VM shutdown during apply crushmaps and PG increase
  • KVM dies with assert(m_seed < old_pg_num)

2016-11-10 06:22:17.768785 osd/osd_types.cc: 409: FAILED assert(m_seed < old_pg_num) ceph version 0.80.8 (69eaad7f8308f21573c604f121956e64679a52a7) 1: (()+0x31e57c) [0x7ff4bda0a57c] 2: (pg_interval_t::is_new_interval(int, int, std::vector > const&, std::vector > const&, int, int, std::vector > const&, std::vector > const&, int, int, unsigned int, unsigned int, pg_t)+0xcd) [0x7ff4bda0a64d] 3: (Objecter::calc_target(Objecter::op_target_t*, bool)+0x79f) [0x7ff4be6b431f] 4: (Objecter::recalc_linger_op_target(Objecter::LingerOp*)+0x38) [0x7ff4be6c1ec8] 5: (Objecter::scan_requests(bool, bool, std::map, std::allocator > >&, std::list >&, std::map, std::allocator > >&)+0x16c) [0x7ff4be6c4c2c] 6: (Objecter::handle_osd_map(MOSDMap*)+0x4dc) [0x7ff4be6c567c] 7: (librados::RadosClient::_dispatch(Message*)+0x4c) [0x7ff4bd89fe0c] 8: (librados::RadosClient::ms_dispatch(Message*)+0xbb) [0x7ff4bd8a008b] 9: (DispatchQueue::entry()+0x58a) [0x7ff4bda5777a] 10: (DispatchQueue::DispatchThread::entry()+0xd) [0x7ff4bdad319d] 11: (()+0x7df5) [0x7ff4bf920df5] 12: (clone()+0x6d) [0x7ff4b979b1ad] NOTE: a copy of the executable, or `objdump -rdS ` is needed to interpret this.

Environment

  • Red Hat Ceph Storage 1.2.3 - 0.80.8-5.el7cp
  • Red Hat Ceph Storage 1.3.0 - 0.94.1-15.el7cp

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content