Smart Plug-in for WebLogic Server Reference Guide

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Chapter 1

Metric B026_EJBTimeoutRate

Monitor Template Name WLSSPI_0026

Metric Name EJB

Metric Type Alarming, Graphing

WebLogic 6.0/6.1 or Both 6.1

Severity: Condition Warning: WLSSPI-0026.1: Threshold 10

Description The number of times per minute a client timed out waiting for an EJB.

Collection Interval 15m

Default OVO Threshold 10

Message Group WebLogic

Message Text WLSSPI-0226.1: # of times per minute a client timed out waiting for an EJB

(<$VALUE>) too high (>=<$THRESHOLD>)

Instruction Text The number of times per minute a client timed out waiting for an EJB has

exceeded the threshold value.

Probable cause: If all instances of an EJB class are active and

max-beans-in-free-pool has been reached, new clients requesting the EJB class

will be blocked until an active EJB completes a method call.

Potential impact: If the transaction times out (or, for non-transactional calls, if

five minutes elapse), WebLogic Server throws a RemoteException.

Suggested action: Verify that the max-beans-in-free-pool element has not been

set too low. Also, while WebLogic Server will always try to allocate a new bean

instance if one is not available, in reality you are limited by the number of

executable threads. In most cases, each thread will need, at most, a single bean

instance.

For information on tuning EJB parameters, see the 'Performance and Tuning'

documentation for your WebLogic Server version available through

http://e-docs.bea.com/.

Action Operator-initiated: Graph

Area EJB