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From Daning Wang <dan...@netseer.com>
Subject Request timeout and host marked down
Date Thu, 05 Apr 2012 17:30:40 GMT
Hi all,

We are using Hector and ofter we see lots of timeout exception in the log,
I know that the hector can failover to other node, but I want to reduce the
number of timeouts.

any hector parameter I should change to reduce this error?

also, on the server side, any kind of tunning need to do for the timeout?


Thanks in advance.


12/04/04 15:13:20 ERROR
com.netseer.services.keywordstat.io.KeywordServiceImpl: Timout 10000 ms
12/04/04 15:13:25 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.28.78.123(10.28.78.123):9160
12/04/04 15:13:25 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.28.78.123(10.28.78.123):9160};
IsActive?: true; Active: 1; Blocked: 0; Idle: 5; NumBeforeExhausted: 19
12/04/04 15:13:44 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.240.113.171(10.240.113.171):9160
12/04/04 15:13:44 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.240.113.171(10.240.113.171):9160};
IsActive?: true; Active: 1; Blocked: 0; Idle: 5; NumBeforeExhausted: 19
12/04/04 15:13:46 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.28.78.123(10.28.78.123):9160
12/04/04 15:13:46 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.28.78.123(10.28.78.123):9160};
IsActive?: true; Active: 1; Blocked: 0; Idle: 5; NumBeforeExhausted: 19
12/04/04 15:13:46 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.123.83.114(10.123.83.114):9160
12/04/04 15:13:46 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.123.83.114(10.123.83.114):9160};
IsActive?: true; Active: 1; Blocked: 0; Idle: 5; NumBeforeExhausted: 19
12/04/04 15:13:46 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.6.115.239(10.6.115.239):9160
12/04/04 15:13:46 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.6.115.239(10.6.115.239):9160};
IsActive?: true; Active: 1; Blocked: 0; Idle: 5; NumBeforeExhausted: 19
12/04/04 15:13:49 ERROR
com.netseer.services.keywordstat.io.KeywordServiceImpl: Timout 10000 ms
12/04/04 15:13:49 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.120.205.48(10.120.205.48):9160
12/04/04 15:13:49 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.120.205.48(10.120.205.48):9160};
IsActive?: true; Active: 3; Blocked: 0; Idle: 3; NumBeforeExhausted: 17
12/04/04 15:13:50 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: MARK HOST AS DOWN
TRIGGERED for host 10.28.20.200(10.28.20.200):9160
12/04/04 15:13:50 ERROR
me.prettyprint.cassandra.connection.HConnectionManager: Pool state on
shutdown:
<ConcurrentCassandraClientPoolByHost>:{10.28.20.200(10.28.20.200):9160};
IsActive?: true; Active: 2; Blocked: 0; Idle: 4; NumBeforeExhausted: 18
12/04/04 15:13:51 ERROR
com.netseer.services.keywordstat.io.KeywordServiceImpl: Timout 10000 ms

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