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3125994 - Connection issues between the application servers and the Standalone Enqueue Server

Symptom

Work processes are stuck on Enqueue related actions for several seconds / minutes, leading to slow Enqueue response times.

The work processes' trace files log network disconnections related to the Enqueue, similar to the entries below:

[date and time]
**** ***LOG Q0I=> NiIRead: P=[IP address of ASCS server]:32XX; L=[IP address of app server:random port number]: recv (110: Connection timed out) [/bas/753_REL/src/base/ni/nixxi.cpp 5429]
M *** ERROR => NiIRead: SiRecv failed for hdl 21/sock 13
(SI_ECONN_BROKEN/110; I4; ST; P=[IP address of ASCS server]:32XX; L=[IP address of app server:random port number]) [nixxi.cpp 5429]
**** {root-id=000D3A0491471EEBA7D80B30D57F6502}_{conn-id=00000000000000000000000000000000}_0
M *** WARNING => EncCliReq: close connection (broken). See SAP note 1943531 [enccli.c 679]
E *** ERROR => EnsaCliDoRequest: DoRequest failed (rc=-1): 488 bytes on con. 0 in layer 0 (EncCli) (1/1) [ensacli.c 408]

---> XX in "32XX" stands for the ASCS instance number


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Environment

  • SAP NetWeaver based product

Product

SAP NetWeaver all versions

Keywords

On hold, running, ENQ, ENSA , KBA , BC-CST-EQ , Enqueue , BC-CST , Client/Server Technology , BC-OP-NT , Windows , BC-OP-LNX , Linux , Problem

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