Sun Fire[TM] System Controller Application (ScApp): error writing response: S_errno

Asset ID:	1-71-1006258.1
Update Date:	2017-02-02
Keywords:

Solution Type Technical Instruction Sure

Solution 1006258.1 : Sun Fire[TM] System Controller Application (ScApp): error writing response: S_errno_EPIPE

Applies to:

Sun Fire 4800 Server - Version Not Applicable and later
Sun Fire 3800 Server - Version Not Applicable and later
Sun Fire 4810 Server - Version Not Applicable and later
Sun Fire 6800 Server - Version Not Applicable and later
Sun Fire E2900 Server - Version Not Applicable and later
All Platforms

Goal

Under any System Controller Application (ScApp) version on a Sun Fire[TM] class machine, you might see the following error logged in showlogs or in the platform loghost:

Jun 19 15:39:47 f6800b-ssc0 Platform.SC: [ID 532468 local1.error] error writing response: S_errno_EPIPE

There don't appear to be other symptoms or errors, and the system is unaffected.

Fix

The ScApp has a service that listens on TCP port 2001.

This service is used to transfer Java[TM] class bytecode over HTTP to the connecting client, used for Sun Fire Link management and field-replaceable unit (FRU) identification services. If a connection is made to TCP port 2001, but then a disconnect occurs before a request is made, an IOException is triggered that prints this error: "error writing response: S_errno_EPIPE".

No common clients connect to TCP port 2001, so this sort of error could be triggered, for example, by port scanning.

No problem is associated with this error, and the error itself does not affect the operation of the System Controller nor the domains; the error may however help in spotting scenarios where the System Controller is not configured on a private network (as recommended by Sun Fire Midrange Systems Platform Administration Manual available here) and/or a port scanning is active.

Product
Sun Fire E6900 Server
Sun Fire E4900 Server
Sun Fire E2900 Server
Sun Fire 6800 Server
Sun Fire 4810 Server
Sun Fire 4800 Server
Sun Fire 3800 Server

Keywords: S_errno_EPIPE, Sun Fire, Sunfire, ScApp

Internal Section

Previously Published As 76957

Product_uuid
4fe39727-0599-11d8-84cb-080020a9ed93|Sun Fire E6900 Server
bed24aa9-0598-11d8-84cb-080020a9ed93|Sun Fire E4900 Server
63ff680d-0598-11d8-84cb-080020a9ed93|Sun Fire E2900 Server
29da7938-0a18-11d6-8a41-9ed1ad6d6779|Sun Fire 6800 Server
29d6f808-0a18-11d6-8aa8-943929fbbdd8|Sun Fire 4810 Server
29d3a694-0a18-11d6-92da-df959df44cdd|Sun Fire 4800 Server
29d05214-0a18-11d6-92b2-a111614865b5|Sun Fire 3800 Server

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