[gpfsug-discuss] SGExceptionLogBufferFullThread waiter

Aaron Knister aaron.s.knister at nasa.gov
Sat Oct 15 15:23:01 BST 2016


I've got a node that's got some curious waiters on it (see below). Could 
someone explain what the "SGExceptionLogBufferFullThread" waiter means?

Thanks!

-Aaron

=== mmdiag: waiters ===
0x7FFFF040D600 waiting 0.038822715 seconds, 
SGExceptionLogBufferFullThread: on ThCond 0x7FFFDBB07628 
(0x7FFFDBB07628) (parallelWaitCond), reason 'wait for parallel write' 
for NSD I/O completion on node 10.1.53.5 <c0n20>
0x7FFFE83F3D60 waiting 0.039629116 seconds, CleanBufferThread: on ThCond 
0x17B1488 (0x17B1488) (MsgRecordCondvar), reason 'RPC wait' for NSD I/O 
completion on node 10.1.53.7 <c0n22>
0x7FFFE8373A90 waiting 0.038921480 seconds, CleanBufferThread: on ThCond 
0x7FFFCD2B4E30 (0x7FFFCD2B4E30) (LogFileBufferDescriptorCondvar), reason 
'force wait on force active buffer write'
0x42CD9B0 waiting 0.028227004 seconds, CleanBufferThread: on ThCond 
0x7FFFCD2B4E30 (0x7FFFCD2B4E30) (LogFileBufferDescriptorCondvar), reason 
'force wait for buffer write to complete'
0x7FFFE0F0EAD0 waiting 0.027864343 seconds, CleanBufferThread: on ThCond 
0x7FFFDC0EEA88 (0x7FFFDC0EEA88) (MsgRecordCondvar), reason 'RPC wait' 
for NSD I/O completion on node 10.1.53.7 <c0n22>
0x1575560 waiting 0.028045975 seconds, RemoveHandlerThread: on ThCond 
0x18020CE4E08 (0xFFFFC90020CE4E08) (LkObjCondvar), reason 'waiting for 
LX lock'
0x1570560 waiting 0.038724949 seconds, CreateHandlerThread: on ThCond 
0x18020CE50A0 (0xFFFFC90020CE50A0) (LkObjCondvar), reason 'waiting for 
LX lock'
0x1563D60 waiting 0.073919918 seconds, RemoveHandlerThread: on ThCond 
0x180235F6440 (0xFFFFC900235F6440) (LkObjCondvar), reason 'waiting for 
LX lock'
0x1561560 waiting 0.054854513 seconds, RemoveHandlerThread: on ThCond 
0x1802292D200 (0xFFFFC9002292D200) (LkObjCondvar), reason 'waiting for 
LX lock'



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