Re: Timeout Errors -- WDSCI-L

Keep in mind that your coding is largely on the client and unless there is
interaction with the IBM i (opening or closing members or whatever) then
the connection sits idling. The symptoms you describe would indicate that
some network appliance has "forgotten" your connection resulting in it
quietly ignoring the read which in turn leads to the read time-out.

Mike

Mike Hockings, M.Eng., P.Eng.
DevOps for Enterprise
IBM Developer for z Systems and Power Systems Software Technical Support
IBM Canada Ltd. Laboratory
hockings@xxxxxxxxxx
voice 1-905-413-3199 T/L 313-3199 ITN 23133199

From: Craig Richards <craig@xxxxxxxxxxxxxxxx>
To: "Rational Developer for IBM i / Websphere Development Studio
Client for System i & iSeries" <wdsci-l@xxxxxxxxxxxx>
Date: 2018/06/04 09:30
Subject: Re: [WDSCI-L] Timeout Errors
Sent by: "WDSCI-L" <wdsci-l-bounces@xxxxxxxxxxxx>

Thanks for the information and link Mike.

I don't think it's an "idling" issue as it happens when I'm in the middle
of coding, however I have asked my client to change the TCPKEEPALV setting
anyway to see if it makes any difference.

As it just happened again I can report that the error dialog is:

"RSEF1002 Operation Failed. File system input or output error"

Details:
"Message reported from file system. Read timed out."

I appreciate that this doesn't shed any more light on the issue, just
mentioning it for completeness.

I'll report back if the TCP setting has any impact.

thanks and regards,
Craig

On 4 June 2018 at 14:01, Mike Hockings <hockings@xxxxxxxxxx> wrote:

If the time-out happens after the RSE connection has been left idling for

while you may wish to review this...
https://developer.ibm.com/answers/questions/288843/how-
to-prevent-the-rse-connection-from-dropping-wh/

Otherwise it is likely a VPN or network stability issue.

Mike

Mike Hockings, M.Eng., P.Eng.
DevOps for Enterprise
IBM Developer for z Systems and Power Systems Software Technical Support
IBM Canada Ltd. Laboratory
hockings@xxxxxxxxxx

From: Craig Richards <craig@xxxxxxxxxxxxxxxx>
To: "Rational Developer for IBM i / Websphere Development Studio
Client for System i & iSeries" <wdsci-l@xxxxxxxxxxxx>
Date: 2018/06/04 05:49
Subject: [WDSCI-L] Timeout Errors
Sent by: "WDSCI-L" <wdsci-l-bounces@xxxxxxxxxxxx>

Hi All,

For the last 6 months or so I have been using RDi and ACS over a VPN.

I consistently get errors with RDi which seem to happen around the 2 hour

mark.
I don't have the message dialog to hand but the RDi log looks like this:

java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:127)
at java.net.SocketInputStream.read(SocketInputStream.java:182)
at java.net.SocketInputStream.read(SocketInputStream.java:152)
at com.ibm.as400.access.DataStream.readFromStream(DataStream.java:52)
at
com.ibm.as400.access.ClientAccessDataStream.construct
(ClientAccessDataStream.java:58)
at
com.ibm.as400.access.AS400ThreadedServer.run

(AS400ThreadedServer.java:357)

at java.lang.Thread.run(Thread.java:785)

Once this happens I have to disconnect from the System in Remote System
Explorer ( which gives a fail message ) and then reconnect.
Then I have to end the QRWTSRVR job on the IBMi which will still have a
lock on the source member I was editing.

This happens consistently several times every day and at roughly 2 hour
intervals ( I think )

I don't have problems with ACS getting disconnected and the tech guy at

the

client site I am connecting to says there is nothing in the VPN that

would

kick me out on a time-based interval.

Is anyone else experiencing this?
I'm not sure how to trace it further but it is kind of annoying having to
end QRWTSRVR jobs every couple of hours every day.

I'm still on RDi 9.6.0.1 but this issue has been there for a while.

Obviously I can see there is a read time out error, there is nothing in

the

log to suggest any kind of disconnection.

If I had to guess, my money would probably a disconnection related to the
VPN, which my general network and ACS are able to recover from but RDi

not,

however I have nothing to substantiate this.

Any advice / comments gratefully accepted.

thanks,
Craig
--
This is the Rational Developer for IBM i / Websphere Development Studio
Client for System i & iSeries (WDSCI-L) mailing list
To post a message email: WDSCI-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit:

https://lists.midrange.com/mailman/listinfo/wdsci-l

or email: WDSCI-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at

https://archive.midrange.com/wdsci-l

.

--
This is the Rational Developer for IBM i / Websphere Development Studio
Client for System i & iSeries (WDSCI-L) mailing list
To post a message email: WDSCI-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit:

https://lists.midrange.com/mailman/listinfo/wdsci-l

or email: WDSCI-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at

https://archive.midrange.com/wdsci-l
.

--
This is the Rational Developer for IBM i / Websphere Development Studio
Client for System i & iSeries (WDSCI-L) mailing list
To post a message email: WDSCI-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit:
https://lists.midrange.com/mailman/listinfo/wdsci-l

or email: WDSCI-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at
https://archive.midrange.com/wdsci-l
.