New subject: [Issue 9895] Increase max number of index DBs in back-mdb

6 Aug 2022


      https://bugs.openldap.org/show_bug.cgi?id=9895
Issue ID: 9895
           Summary: Increase max number of index DBs in back-mdb
           Product: OpenLDAP
           Version: 2.5.12
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Keywords: needs_review
          Severity: normal
          Priority: ---
         Component: backends
          Assignee: bugs@openldap.org
          Reporter: hyc@openldap.org
  Target Milestone: ---
Currently there is a hardcoded limit of 128 index DBs in back-mdb. Some sites
want more than this (although there's no evidence they actually use more than
128 attributes in all of their applications' search filters).
For 2.5/2.6 we can simply double the constant. For 2.7 consider making it
configurable.
Note that increasing the number increases the size of an LMDB transaction
structure, and also increases the time needed to initialize it whenever
creating a transaction, so it's a bad idea to just set this to an arbitrarily
large number.
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[Issue 9895] New: Increase max number of index DBs in back-mdb