Re: postfix-3.11.4,1 does not work with lmdb-1.0.0,1, requires 0.93.5,1

On 2026-07-04 11:37, Michael Grimm wrote:
> Jordan M <[email protected]> wrote:
>> If the files used by the port are the same format that mdb_dump
>> can read.  AFAICT that's not the case for postfix.  I couldn't get 
>> mdb_dump to recognize the postmap-generated file as a valid
>> database.
> 
> IMHO you don't need mdb_dump/mdb_load w.r.t. to postfix' lmdb
> databases.
> 
> It should be sufficient to re-run 'postmap 
> lmdb:YOUR_PLAIN_TABLE_OR_WHATSOEVER' on all relevant plain text 
> files you need to convert to lmdb databases. (To be on the save side
> I would delete that YOUR_PLAIN_TABLE_OR_WHATSOEVER.lmdb beforehand.)

Normally it would be, however:

On 2026-07-03 16:47, Jordan M wrote:
 > # pkg info -d postfix | grep lmdb
 >            lmdb-1.0.0,1
 >            lmdb-1.0.0,1 (liblmdb.so.1)
 > # postmap lmdb:/tmp/testdb
 > postmap: fatal: error updating lmdb:/tmp/testdb: MDB_BAD_TXN:
 > Transaction must abort, has a child, or is invalid
 > #

That error occurred whether or not /tmp/testdb.lmdb already existed.