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python join: Set index transaction cache size.

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The default value is too small for joining a large domain.  So we specify a
size of 200,000 which is suitable for domains with up to 100,000 users.

At a later date this could be added as a parameter to the join, but
200,000 should be suitable for now.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Apr  4 07:45:03 UTC 2019 on sn-devel-144
This commit is contained in:
Gary Lockyer
2019-04-01 16:49:38 +13:00
committed by Andrew Bartlett
parent 69408654b7
commit 00874b6144
1 changed files with 5 additions and 0 deletions
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python/samba/join.py
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@ -888,8 +888,13 @@ class DCJoinContext(object):
# we now operate exclusively on the local database, which
# we need to reopen in order to get the newly created schema
# we set the transaction_index_cache_size to 200,000 to ensure it is
# not too small, if it's too small the performance of the join will
# be negatively impacted.
print("Reconnecting to local samdb")
ctx.samdb = SamDB(url=ctx.local_samdb.url,
options=[
"transaction_index_cache_size:200000"],
session_info=system_session(),
lp=ctx.local_samdb.lp,
global_schema=False)