Performance issues when using RTC 3.0.1.x clients to access 4.0.x server

Flash (Alert)


Abstract

This Alert is meant to inform you about performance issues that can occur when using IBM Rational Team Concert (RTC) 3.0.1.x clients to access 4.0.x server.

Content

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IBM Rational Team Concert (RTC) 3.0.1.x clients running with a 4.0.x server may result in overall slowness of the server. This may occur when 3.0.1.x clients (for example: RTC Eclipse client, RTC Visual Studio client, SCM command line, or build engines) are in use.

The following URL can be used to determine what clients are being used:
https :
//hostname/servlet/service/com.ibm.team.repos
itory.service.internal.counters.ICounterContentService

Issue/Symptoms

  • Overall server slowness is observed and CPU usage may spike over 95%.

  • If WAIT logs are gathered, the following stack traces are seen:


    at
    org/eclipse/core/internal/registry/RegistryObjectManager.getObje
    ct(RegistryObjectManager.java:262
    at
    org/eclipse/core/internal/registry/ThirdLevelConfigurationElemen
    tHandle.getConfigurationElement(ThirdLevelConfigurationElementHa
    ndle.java:25
    at
    org/eclipse/core/internal/registry/ConfigurationElementHandle.ge
    tAttribute(ConfigurationElementHandle.java:34
    at
    com/ibm/team/repository/common/transport/AbstractElementDescript
    or.getAttribute(AbstractElementDescriptor.java:349
    at
    com/ibm/team/repository/common/transport/AbstractElementDescript
    or.getAttribute(AbstractElementDescriptor.java:335
    at
    com/ibm/team/repository/common/internal/util/EvolutionDescriptor
    .getComponentVersion(EvolutionDescriptor.java:53
    at
    com/ibm/team/repository/common/internal/util/ModelElementDescrip
    tor.requiredClientUpgradeVersion(ModelElementDescriptor.java:174
    at
    com/ibm/team/repository/common/internal/marshal/impl/WebServices
    Marshaller.requiredClientUpgradeVersion(WebServicesMarshaller.ja
    va:444
    at
    com/ibm/team/repository/common/internal/marshal/impl/WebServices
    Marshaller.checkForTypeUnknownToClient(WebServicesMarshaller.jav
    a:425
    at
    com/ibm/team/repository/common/internal/marshal/impl/WebServices
    Marshaller.marshalMultiValuedReference(WebServicesMarshaller.jav
    a:413
    at
    com/ibm/team/repository/common/internal/marshal/impl/EObjectMars
    haller.marshalReferences(EObjectMarshaller.java:365)
    ...



Cause

This issue has been reported as defect APAR PI06466.


Refer to the following defect work item for further details:
https://jazz.net/jazz/resource/itemName/com.ibm.team.workitem.WorkItem/289275


Workaround

Upgrade all clients to RTC version 4.0.x.

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Document information


More support for:

Rational Team Concert
Team Server

Software version:

3.0.1, 3.0.1.1, 3.0.1.2, 3.0.1.3, 3.0.1.4, 3.0.1.5, 3.0.1.6, 4.0, 4.0.0.1, 4.0.0.2, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5

Operating system(s):

AIX, Linux, Solaris, Windows

Reference #:

1662731

Modified date:

2014-01-30

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