Cluster node problems in communciation channel

[Former Member]

Hello,

I often have node problems where all messags get stuck in particular cluster node of communication channel.

Once it is restarted, all messages are working problem, With respect to that were the following issues. Error when getting an FTP connection from connection pool: com.sap.aii.af.service.util.concurrent.ResourcePoolException: Unable to create new pooled resource: ConnectException: Connection refused (errno:239)

Please do let me know for the solution to avoid it in the future.

Regards,

Anandh

[Former Member · Accepted solution]

Try exteneding the File/FTP trace to get the exact details of what is causing the error.

there maybe something as simple as to many concurrent users to the ftp location!

[bhavesh_kantilal]

Hello,

Question 43 of file adapter faq,

• Q: J2EE engine hangs with the File/FTP sender channels. How to resolve this ?

• A: The reason for this is, some times due to network level issues, a message is waiting forever for a response from a FTP server which is down for some time. Adapter does not know this and try to poll FTP server again with second message. This goes on and on and eventually we would have J2EE engine hanging. To solve this, following things need to be applied:

1) Set FTP timeout to appropraite value if channel is FTP sender channel.

2) In advanced mode table options, add a new parameter 'clusterSyncMode' and its value set to 'lock'. This parameter is without single quotes and case-sensitive.

3) Last but not least, make sure that you are in latest patches of SP19/SP20/SP21/SP22 for SAPXIAFC component of XI 3.0 release and SP10/SP11/SP12/SP13/SP14 for SAPXIAFC component of XI 7.0 release. Any patch which is released after 11th of Febraury 2008 for the above releases is fine.

We had the same issue and this did the trick.

Regards,

Bhavesh