Ok, we've managed to do strace -s during such a situation (see attached file). I have no clue what can it mean. Only errors count is quite strange. Could this http://postgresql.1045698.n5.nabble.com/high-CPU-usage-for-stats-collector-in-8-2-td1962590.html affect our environment?
-- Andrzej Krawiec > > perf can tell you about problems in kernel-space, but I'm not sure it > exists that far back. > > -- > Robert Haas > EnterpriseDB: http://www.enterprisedb.com > The Enterprise PostgreSQL Company
strace_2012-05-31_08_38_44.log
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