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Re: direct MDB access for counting entries from Python
- To: openldap-technical <openldap-technical@openldap.org>
- Subject: Re: direct MDB access for counting entries from Python
- From: Michael Ströder <michael@stroeder.com>
- Date: Fri, 17 Jan 2020 15:49:32 +0100
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- In-reply-to: <85734eda-d21c-f9cc-9b5f-9e2fc839d4b7@symas.com>
- References: <df86e66c-c6f5-e16a-2c20-012d652fdff6@stroeder.com> <85734eda-d21c-f9cc-9b5f-9e2fc839d4b7@symas.com>
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On 1/17/20 3:09 AM, Howard Chu wrote:
> Michael Ströder wrote:
>> Is it easily possible to access the id2e sub-DB and query number of entries?
>>
>> Something like
>>
>> mdb_stat -s id2e -e <db-path> | grep Entries
>>
>> but from Python with python-lmdb or a similar module.
>
> It's pretty trivial in py-lmdb.
>
> ####
> import lmdb
>
> env = lmdb.open('/tmp/test', max_dbs=2)
> with env.begin() as txn:
> subdb = env.open_db('id2e', txn=txn, create=False)
> print txn.stat(subdb)
> ####
Thanks Howard!
Just for the records: With Python3 one has to pass the name of the
sub-DB as byte-string.
subdb = env.open_db(b'id2e', txn=txn, create=False)
Changed slapdcheck:
https://gitlab.com/ae-dir/slapdcheck/commit/3c4757cbf8546c15ae33dd8de46c6e9b1b7978ff
Ciao, Michael.