Random HTTP ERROR 503: Server unavailable

[former_member348282]

Hi,

We are facing random error http 503 Server unavailable on a soap adapter when more than 40 synchronous messages arriving at the adapter in a short period of time <5s,.

We receive an XML on a SOAP adapter that insert the content of the message on a JDBC receiver and send back the result of the insert as the answer of the synchronous process.

We have unsuccessfully modified "messaging.connectionDefinition" property of the "SAP XI AF Core service" increasing Send.maxConsumers, Recv.maxConsumers, Call.maxConsumers, Rqst.maxConsumers from default 5 value to

(name=global, messageListener=localejbs/AFWListener, exceptionListener=localejbs/AFWListener, pollInterval=60000, pollAttempts=200, Send.maxConsumers=100, Recv.maxConsumers=100, Call.maxConsumers=100, Rqst.maxConsumers=100)

There are no error on the message monitoring so we are loosing messages and we are unable to notice it.

The server is SAP PI 7.11 on windows 2003 Server+SQL2005

Any ideas? How can we know where is the bottleneck or what to increase to avoid it?

[iaki_vila · Accepted solution]

Hi Ruben,

Check if this note can helps you 1945745 - How to increase the number of HTTP Worker (FCA) threads  to increase the SOAP sender performance

Regards.

[former_member348282 · Accepted solution]

Thank you so much  Iñaki for your quick and accurate response.