You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.
Adjust the index list threshold.
You can adjust your index list threshold at any of the following levels:
At the instance level:
dsconf set-server-prop -h host -p port all-ids-threshold:value
At the suffix level:
dsconf set-suffix-prop -h host -p port suffix-DN all-ids-threshold:value
At the entry level:
dsconf set-index-prop -h host -p port suffix-DN all-ids-threshold:value
At the index level, by search type:
dsconf set-index-prop -h host -p port suffix-DN all-ids-threshold search-type:value
where search-type is one of the following:
The all-ids-threshold property cannot be configured for the approximate index.
You can use DSCC to set the threshold at the index level, by search type. For more information, see the Directory Server online help.
Regenerate the suffix indexes.
See To Generate Indexes.
If the database cache size was tuned for the old all IDs threshold value and the server has adequate physical memory, consider increasing the database cache size.
Increase the database cache size by 25 percent of the magnitude of the increase to the all IDs threshold.
In other words, if you increase the all IDs threshold from 4000 to 6000, you can increase the database cache size by about 12 ½ percent to account for the increase in index list size.
Database cache size is set using the attribute dbcachesize. Find the optimum size empirically before applying changes to production servers.