Database issues

If you see the following error when upgrading ze-filter (as you surely take a look at your logs when you upgrade your filter…) :

Aug 22 15:15:44 paris-1 ze-filter[28914]: [ID 129486 local5.error] 
             jdb_env_open : Error opening environnement : /var/ze-filter/wdb 
             DB_VERSION_MISMATCH: Database environment version mismatch

This means that Berkeley DB DBMS distributed with was updated and some old environnement files aren't compatible with the new Berkeley DB environnement. Stop ze-filter, remove old environnement files and restart the filter.

# cd /var/ze-filter/wdb
# ls
__db.001            __db.004            __db.register        ze-greyvalid.db      log.0000000645
__db.002            __db.005            ze-greyblacklist.db  ze-greywhitelist.db  log.0000000646
__db.003            __db.006            ze-greypend.db       ze-res-cache.db
# /etc/init.d/ze-filter stop
# rm -f __*
# /etc/init.d/ze-filter start