THANKS: error 25573,27001
} Hamzova Katarina wrote:
} [cutting]
} > } >} Informix On line V 7.20 RM 600 SNI
} > } >}
} > } >} One of our customer had a problem .
} > } >} Their hub had failed and when they recovered it,
} > } >} they didn't kill hunged connections.
} > } >} In several minutes they doubled the number
} > } >} of connections . They got error 25573 and 27001
} > } >} We have made the same tests and got the same error
} > } >} when trying to make 96-th connect to on line
} > } >} ( i found it via onstat -u (first column ) )
} > } >} Every other attempt ( 96-th - connection to service was
} established
} > } -
} > } >} ( i found it via netstat -a ))
} > } >} to connect via TCP VP to informix failed and stayed hunged.
} > } >} After disconecting one ( or more) users
} > } >} we were able to connect but via CPU VP
} > } >} TCP VP stayed hunged until rebooting the system
} > } >} (we changed NETTYPE 1,????,TCP userthreads up to 128 - it had
} > } >} no effect on magic "number of allowed connections" = 95 )
} > } >}
} > } DId you reboot Online after change NETTYPE?
} > }
} > Yes we did it .
} >
} [cutting]
}
} Are you overrunning some of the kernel params?
}
SUMMARY:
YES we had to tune kernel params (SEMMNI,...)
Thanks for all replies
katarina