[Info-vax] AST Quota
Jim
mckinneyj at saic.com
Mon Mar 16 13:50:48 EDT 2009
On Mar 16, 1:03 pm, Craiger... at gmail.com wrote:
> I have a process that is getting an error, "%SYSTEM-F-NOIOCHAN, no I/O
> channel available" when a sys$crembx command is issued. The process
> works for a long time before eventually crashing. I'm trying to figure
> out what is happening to cause the error. One thing I notice is that
> my AST quota is decreasing over time. When i user "SHOW PROC/QUOTA" I
> get a value called "AST quota". The value starts around 100 and
> decreases over time. When I look at AUTHORIZE, it reports an ASTlm =
> 24 for this account.
>
> I was thinking of increasing my AST quota, but I do not understand
> where it is coming from given that the value of ASTlm reported by
> AUTHORIZE is less than the value reported by SHOW/PROC/QUOTA.
>
> How do I increase my AST Quota?
>
$ MCR AUTHORIZE MOD username/ASTLM=nnn
will do it. However, this will likely just push the failure out a
little longer in time. Your code is most likely opening some channel
and forgetting to close it - repeatedly - hence the NOIOCHAN (each
open channel likely has ASTs associated with it based upon what you're
seeing). You might want to use SDA to take a look at the process after
it's been running a while to help see what is occurring. Get the PID
of the process and
$ ANALYZE/SYSTEM
SDA> SHOW PROC/CHAN/ID=pid
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