In article <33141D84.741@porsche.co.at>, Peter Kolmhofer <"Peter
Kolmhofer"@porsche.co.at> writes
>Cesar Alexandre de Souza wrote:
>>
>> I have a problem with DSA 7.2 running on a K250 with 256 Mb
>> I hope anyone could help me.
>>
>> Sometimes the database server seems to 'freeze', it is,
>> it is still on-line and running, there are no error messages on the log
>> but nobody can access it thru shared memory, and
>> it is possible to access it thru a network connection (soctcp).
>> We were told by a Informix Vendor hewre in Brazil that the problem was
>> with the HP-UX 10.20 and that we should install an appropriate patch.
>> We installed the shared memory patch, but the problem ocurred again.
>>
>> PLease help!!
>>
>> Cesar Souza - Brazil - casouza@usp.br
>
>We too had the same situation (on AIX however). The problem could be
>located in the NETTYPE parameter; there is a value for max. connections.
>You could try to increase this value or find out if this is the problem.
>(onmode -z some of the SHM-connections and try to connect again).
>
>The example of the according $ONCONFIG-Line (20 concurrent connections):
>NETTYPE ipcshm,1,20,CPU # Override sqlhosts nettype parameters>
>Hope this helps,
>Peter
Possibly a long checkpoint is running whilst Online freezes?
I would check the checkpoint durations times in online.log.
Or logical logs become full - also check for messages in online.log.
Also try running onstat -g ath whilst Online is frozen.
--
David Williams