Traffic Control nettimeout , does it have to do with SAP WebDispatcher?

[Former Member]

Hello experts

We get icm nettimeout error everytime we restart our sap system.

Is this kind of what usually happens to sap system with sap webdispatcher installed?

Error message:

Traffic Control nettimeout(120) exceeded by peer (ICM)

Our SAP Webdispatcher starts after the start of SAP instance.

[daniel_kovacs]

Hello Munkhzaya,

You can also read more about the timeout parameters in ICM or WebDispatcher in the following documents:

824554 - ICM and SAP Web Dispatcher timeout parameters

2192141 - Traffic control timeout by peer

Best regards,

Daniel

[isaias_freitas]

Hello Munkhzaya,

Both the Web Dispacther and ICM have the "nettimeout" control.

This traffic control raises the error if a connection is received, but not all the data from the request is received within the configured "nettimeout" period.

Can you please clarify what exactly is being done, so we can understand why the nettimeout is being raised?

Is the Web Dispatcher being restarted too?

Is the error raised at the Web Dispatcher or ICM?

Regards,

Isaías

[Former Member]

Hello Isaias!

I do not understand why the nettimeout is being raised everytime after system restart.

In the dev_icm trace log it has below entries...

[Thr 3599] {00030009} Traffic Control: Nettimeout (120) exceeded by peer: 127.0.0.1:0 [icxxthr_mt.c 4285]
[Thr 3599] CONNECTION (id=2/10):
  used: 1, type: default, role: Server(1), stateful: 0
  NI_HDL: 385, protocol: HTTP(1)
  local host:  127.0.0.1:0 (/tmp/.sapicm8040)
  remote host: 127.0.0.1:0 (/tmp/.sapicm8040)
  status: READ_REQUEST
  connect time: 24.05.2018 11:01:55
  MPI request:  <f>  MPI response:  <10>
  request_buf_size:  0  response_buf_size:  0
  request_buf_used:  0  response_buf_used:  0
  request_buf_offset: 0  response_buf_offset: 0

You can see it is loopback address displayed, thus we thought there somekind of internal communication within icm.

But when we raized the trace level to two.The loopback address has changed to server IP address that our sap system sits on. On the same server we have few sap systems, all with sap web dispatchers.

We just want to know from where this connection is coming and why everytime the system restart is being made.

[isaias_freitas]

Hello Munkhzaya,

Can you share the level 2 trace? If possible, the complete trace file, so we can perform the appropriate analysis.

You can "zip" it and attach the "zip" file to this thread.

Regards,

Isaías