While installing a new update for a Content Pack found this error in mam.packaging.log:
<2014-02-06 00:37:33,474> [ERROR] [qtp1528883877-267 - /ucmdb-ui/services/CmdbOperationExecuterService] - <Customer <1, id name: Default Client>Subsystem class:77 resources have been deployed, 1 resources have failed to deploy. Failed resources: [j2eeserver]
[ERROR CODE- 10] appilog.common.system.types.packaging.PackageException: Subsystem class:77 resources have been deployed, 1 resources have failed to deploy. Failed resources: [j2eeserver]
And also found this error in cmdb.classmodel.log:
2014-02-06 00:36:52,312 [qtp1528883877-267 - /ucmdb-ui/services/CmdbOperationExecuterService] (ClassModelUpdateCreateOrUpdateCmdbClasses.java:186) ERROR - Exception while updating class j2eeserver.
com.mercury.topaz.cmdb.shared.classmodel.exception.ClassModelDiffValidationException: [ErrorCode  Action is not allowed because there are instances from this item]
Cannot decrease attribute size
A customization of a CI Type was done (in this case j2eeserver) and increase the length of an attribute. The installation of the Content Pack Update failed to change it back to the default value as this could impact in the data of the existing CIs.
Not necessary to do any change. The value will remain with the value that was set before.