i changed timeout from 5 to 10 in zabbix_suckerd.conf, restart zabbix_suckerd and then had a log like:
011719:20041021:133209 Query failed:Got error -1 from table handler [1030]
011719:20041021:133210 Query::insert into history (clock,itemid,value) values (1098340330,17394,1838.506660)
011719:20041021:133210 Query failed:Got error -1 from table handler [1030]
011719:20041021:133210 Query::insert into history (clock,itemid,value) values (1098340330,17397,5.333330)
011719:20041021:133210 Query failed:Got error -1 from table handler [1030]
until restart it was all right
011719:20041021:133209 Query failed:Got error -1 from table handler [1030]
011719:20041021:133210 Query::insert into history (clock,itemid,value) values (1098340330,17394,1838.506660)
011719:20041021:133210 Query failed:Got error -1 from table handler [1030]
011719:20041021:133210 Query::insert into history (clock,itemid,value) values (1098340330,17397,5.333330)
011719:20041021:133210 Query failed:Got error -1 from table handler [1030]
until restart it was all right
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