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UCMDB Support Tip: duplicate key value violates unique constraint "ddm_gw_task_results_pkey"

When probe gets constant database errors such as:

 

… [ERROR] [TaskResult Grouping handler] (DBLog.java:50) - Failed com.hp.ucmdb.discovery.probe.agents.probemgr.dbservices.TaskResultDAO:getUnSentTaskResults select TASK_ID,JOB_ID,OBJECTS_ZIP,OBJECTS_COUNT,DEL_OBJECTS_ZIP,DEL_OBJECTS_COUNT,DEL_IDS,DEL_IDS_COUNT,CANDDEL_IDS,CANDDEL_IDS_COUNT,TIME_STAMP,ENABLE_AGING,IGNORE_RECONCILIATION_RULES, SUPPRESS_IGNORED_CIS, TRIGGER_CI_ID, OBJECTS_IDS, EXECUTION_START_TIME, SENDING_TIME_STAMP, OWNER_ID, USE_GRACEFUL_DATA_IN from DDM_TASK_RESULTS where JOB_ID = ? order by TIME_STAMP jvm 2    | org.postgresql.util.PSQLException: ERROR: missing chunk number 0 for toast value 3126087 in pg_toast_3078882 jvm 2 … [ERROR] [TaskResult Grouping handler] (ProbeTaskResultsSender.java:312) - Probe Gateway Failed storing results of task Process Discovery By SSH job Process Discovery By SSH from probegw TARPROD-DDM timestamp=1398349570865 objectsToAddOrUpdate Size=15 objectsToDelete Size=0 The Exception: jvm 2 org.postgresql.util.PSQLException: ERROR: duplicate key value violates unique constraint "ddm_gw_task_results_pkey"

 

Please be advice such errors are caused by a corrupted data record in the gw_tasks_result table. As a result, HP uCMDB cannot read the table content unless all records are deleted. In some scenarios, even if a cleardataprobe.bat is performed, issue might still be encountered. And the following error "could not truncate file "base/16385/24653" to 0 blocks: Permission denied" might be found in the postgreSQL log.

 

As a result, it is mandatory to exclude the postgres data folder from antivirus being used. These includes any executable files (*.exe) from pgsql\data directory.

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