Unable to access IAM CS Management Console
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Unable to access IAM CS Management Console


Article ID: 5156


Updated On:


CA Identity Manager CA Identity Governance CA Identity Portal CA Identity Suite


When trying to access IAM Connector Server Management console (http://JCS_FQDN:20080/main) - a blank page is seen, instead of the expected login page.

JCS stderr log file may have the following exception

Exception in thread "Thread-43" java.lang.Error: CRITICAL: page header magic for block 121 not OK 0
               at jdbm.recman.PageHeader.<init>(PageHeader.java:74)
               at jdbm.recman.PageHeader.getView(PageHeader.java:97)
               at jdbm.recman.PageManager.getNext(PageManager.java:190)
               at jdbm.recman.PageCursor.next(PageCursor.java:92)
               at jdbm.recman.PhysicalRowIdManager.fetch(PhysicalRowIdManager.java:158)
               at jdbm.recman.BaseRecordManager.fetch(BaseRecordManager.java:337)
               at jdbm.recman.CacheRecordManager.fetch(CacheRecordManager.java:263)
               at jdbm.btree.BTree.getRoot(BTree.java:525)
               at jdbm.btree.BTree.find(BTree.java:401)
               at org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable.getRaw(JdbmTable.java:1365)
               at org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable.get(JdbmTable.java:316)
               at org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmIndex.forwardLookup(JdbmIndex.java:203)
               at org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmPartition.getEntryId(JdbmPartition


jcs_daily.log might show:

ERROR  - Dispatch failed. java.lang.Exception: The management service is not available.


Event Viewer:

A timeout (30000 milliseconds) was reached while waiting for a transaction response from the im_jcs service.


Identity Manager - Java Connector Server 12.6 (any SP), 14.2, 14.4, 14.5


Different causes, on the server side (inconsistent state) as well as client side (browser incompatibility)


To restore access to the IAM Connector Server Management Console, please try the following:

1. To eliminate browser related issues (such as security restrictions etc) - try a different browser (FireFox, Chrome) or a different desktop all together. You might want to switch on browser developer mode (F12 - Network tab) to see whether it is able to correctly route to the hostname used in the URL.

2. To eliminate server inconsistent state, try to restart the Java Connector Server (JCS) and once verified it is up and running, try accessing IAM Connector Server Management Console again

3. If previous steps are not helping in gaining access to IAM Connector Server Management Console, the following should be attempted:

- Stop JCS Service
- Delete the following folders
..\Connector Server\Data\activemq
..\Connector Server\data\cache
..\Connector Server\data\derby
..\Connector Server\data\port
..\Connector Server\jcs\data\jdbm\etasa
..\Connector Server\jcs\data\jdbm\SA Configuration
- Start JCS Service

Try accessing IAM Connector Server Management Console again