lvm commands in a cluster block without any signs of storage issues in RHEL 5

Solution Unverified - Updated -

Issue

  • LVM commands such as lvs and vgdisplay hang forever, but no errors or storage problems found in logs.
  • clvmd core shows main thread stuck in read_from_local_sock, but is NOT related to this issue
Thread 24 (Thread 0x2b591db24300 (LWP 29241)):
#0  0x0000003830e0d654 in __lll_lock_wait () from /lib64/libpthread.so.0
#1  0x0000003830e08f4a in _L_lock_1034 () from /lib64/libpthread.so.0
#2  0x0000003830e08e0c in __pthread_mutex_lock (mutex=0x2b5920004810) at pthread_mutex_lock.c:61
#3  0x000000000041298f in read_from_local_sock (thisfd=0x2b5920004790, buf=<value optimized out>, 
    len=<value optimized out>, csid=<value optimized out>, new_client=<value optimized out>)
    at clvmd.c:1082
#4  local_sock_callback (thisfd=0x2b5920004790, buf=<value optimized out>, 
    len=<value optimized out>, csid=<value optimized out>, new_client=<value optimized out>)
    at clvmd.c:622
#5  0x00000000004130fb in main_loop (local_sock=<value optimized out>, 
    cmd_timeout=<value optimized out>) at clvmd.c:871
#6  0x0000000000414442 in main (argc=<value optimized out>, argv=0x7fffb12b4938) at clvmd.c:583

Environment

  • Red Hat Enterprise Linux (RHEL) 5 with the Resilient Storage Add On
  • lvm2-cluster-2.02.88-7.el5
    • locking_type = 3 in /etc/lvm/lvm.conf
    • volume group(s) marked with c attribute (clustered)
    • clvmd running
  • Conditions described in this solution are NOT present

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