[server] Make connection pooler configurable and set better default values
Drop the configuration connections-pool-size and add new configurations options:
* connections-pool-min-size. Set to 0 by default so we open connections only
when needed. This avoid opening min-size*processes connections at startup,
which is, it think, a good default.
* connections-pool-max-size. Set to 0 (unlimited) by default, so we move the
bottleneck to postgresql.
* connections-idle-timeout. Set to 10 minutes. I don't have arguments about
this except that this is the default in pgbouncer.
from __future__ import print_function
from base64 import b64decode, b64encode
try:
uri, newdn = __args__
except ValueError:
print('USAGE: cubicweb-ctl shell <instance> ldap_change_base_dn.py -- <ldap source uri> <new dn>')
print()
print('you should not have updated your sources file yet')
olddn = repo.source_by_uri(uri).config['user-base-dn']
assert olddn != newdn
raw_input("Ensure you've stopped the instance, type enter when done.")
for eid, olduserdn in rql("Any X, XURI WHERE X cwuri XURI, X cw_source S, S name %(name)s",
{'name': uri}):
newuserdn = olduserdn.replace(olddn, newdn)
if newuserdn != olduserdn:
print(olduserdn, '->', newuserdn)
sql("UPDATE cw_cwuser SET cw_cwuri='%s' WHERE cw_eid=%s" % (newuserdn, eid))
commit()
print('you can now update the sources file to the new dn and restart the instance')