Hi Christian > After combating some weird incompatibility with Debian Lenny 5.0 where > PDNSs gsqlite3 refused to write anything to the database it begun to crash > when we did the initial transfer (notify of several hundred domains). > I have tried with the OpenDBX backend which seems to work much better > regarding the sqlite3 incompatibility but also crashes during heavy > transfer load.
SQLite is only useful for small installations and a few domains because it uses table locks when it writes the changes to the database. As each zone transfer is a transaction that wants to write to the same table, no two transfers can happen in parallel. Better use a different database for the slave dns servers in your case. MySQL is the one with the highest read performance but you can use whatever fits your needs. Norbert -- OpenPGP public key http://www.linuxnetworks.de/norbert.pubkey.asc
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