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From yue.zhang <yue.zh...@chinacache.com>
Subject about FlushWriter "All time blocked"
Date Mon, 24 Jun 2013 03:41:53 GMT
3 node
cent os
CPU 8core memory 32GB
cassandra 1.2.5
my scenario: many counter incr, every node has one client program, performance is 400 wps
/every clicent (it’s so slowly)

my question:

Ø  nodetool tpstats
---------------------------------
Pool Name                    Active   Pending      Completed   Blocked  All time blocked
ReadStage                         0         0           8453         0                 0
RequestResponseStage              0         0      138303982         0                 0
MutationStage                     0         0      172002988         0                 0
ReadRepairStage                   0         0              0         0                 0
ReplicateOnWriteStage             0         0       82246354         0                 0
GossipStage                       0         0        1052389         0                 0
AntiEntropyStage                  0         0              0         0                 0
MigrationStage                    0         0              0         0                 0
MemtablePostFlusher               0         0            670         0                 0
FlushWriter                       0         0            191         0                12
MiscStage                         0         0              0         0                 0
commitlog_archiver                0         0              0         0                 0
InternalResponseStage             0         0              0         0                 0
HintedHandoff                     0         0             56         0                 0
-----------------------------------
FlushWriter “All time blocked”=12,I restart the node,but no use,it’s normally
?

thx

-heipark


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