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When a search is on the root of a partition on the global catalog,
don't search partitions above that one.
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if we get an error code from a lower module, we don't want to ignore
it just because something also succeeded
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If we get an error ending a transaction on one partition we need to
continue on the other partitions.
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This means we need to create a fake 'module' which only has a 'next'
pointer, so that we can now ldb_next_request() (which incorporates
tracing). The remainaing stub of partition_request() is retained so
that we can indicate which partition an operation is destined for.
Similar tracing is added to the transaction handlers.
Andrew Bartlett
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The schema update now request is now handled above the partitions
module.
Andrew Bartlett
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The problem here has been avoided in repl_meta_data, and so this is no
longer required.
Andrew Bartlett
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This means we don't return any control for modifications to the
control records in sam.ldb, but do if they modified one of the actual
data LDB files.
Andrew Bartlett
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This allows one instance of LDB to add a partition, and another to use
it without first closing the database.
Andrew Bartlett
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I see no reason to reload it when in a transaction - it can't change
on us anyway (we possibly need to watch for our own changes to
@PARTITION however)
Andrew Bartlett
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This uses the fact that the primary DB does not change often. Before
each operation, we see if the sequence number has changed.
Andrew Bartlett
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This is done by passing an extended operation to the partitions module
to extend the @PARTITION record and to extend the in-memory list of
partitions.
This also splits things up into module parts that belong above and below
repl_meta_data
Also slit the partitions module into two files due to the complexity
of the code
Andrew Barltett
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It's very useful to know the exact result code when something fails and not
only a generic (by the module) created one.
Sure, there are some exception cases with specific results (special message
constellations, attributes, values...) which shouldn't be changed at all
(examples of them are in the "ldap.py" test). Therefore I looked very
carefully to not change them.
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When searching across partitions, we want to avoid sending duplicate
records caused by the record appearing both as a mount point and as a
partition root in a nested partition. This patch works by intercepting
objects from searches and checking if they match a partition root. If
they do, and the partition is not the one in the partition control
request, then discard the object.
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You can now attach a partition control to searches to search within a
specific partition. This is used to get at the per-partition
@REPLCHANGED object
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The partition module normally makes the sequence number extended op
operate across all partitions. It will be useful in the repl task to
be able to ask for the sequence number of one partition
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I think these modules ended up LGPL because someone based the module
on an existing LGPL module in the core ldb, and it spread from
there. Certainly there is no reason for the ldb modules that are not
distributed as part of ldb to be LGPL.
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Now that ldb is calling prepare commit separately, the job of the
partition module on transaction end is much simpler (and more robust!)
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This structures was used in two ways. In one way it held variables
that are logically internal to the partition module, and in the other
way it was used to pass the partition DN down to other modules. This
change makes the structure contain just the dn which is being passed
down.
This change is part of the support for linked attributes. We will be
passing this control down from above the partition module to force
which partition a request acts upon. The partition module now only
adds this control if it isn't already there.
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This job is not complete (the partition module remains a unfinished
task), but now we do use the private ldb headers much less.
Andrew Bartlett
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This makes multi-partition ldb's much safer
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Separate again the public from the private headers.
Add a new header specific for modules.
Also add service function for modules as now ldb_context and ldb_module are
opaque structures for them.
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Signed-off-by: Stefan Metzmacher <metze@samba.org>
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It seems that in 2deeb99fff1a90c79ba1927e1a069362e250a63c adding the
partition control to this request was missed out.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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remove some unused functions.
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it should always have been. Make it also async so that it is not a special case.
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- when multiple partitions are searched, consider the search a
success if any of the partitions return success
- only search the right subset of partitions, looking at the scope
and basedn of the search
This fixes several errors with GC searches
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direct comparison instead of a sub-tree comparison in another
this fixes basedn searches on the global catalog port
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metze
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metze
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The previous ldb_search() interface made it way too easy to leak results,
and being able to use a printf-like expression turns to be really useful.
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This is a partial fix towards bugs due to us walking past the end of
what we think are strings in ldb. There is much more work to do in
this area.
Andrew Bartlett
(This used to be commit 5805a9a8f35fd90fa4f718f73534817fa3bbdfd2)
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The ldif for that operation looks like this:
dn:
changetype: Modify
add: schemaUpdateNow
schemaUpdateNow: 1
It uses the rootdse's object functional attribute schemaUpdateNow.
In rootdse_modify() this command is being recognized and it is send as extended operation with DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID.
In the partition module its dispatched to the schema_fsmo module.
The request is processed in the schema_fsmo module by schema_fsmo_extended().
(This used to be commit 39f9184ddf215f2b512319211c0a05702218ef87)
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We only ever have one backend partition per Samba partition.
Andrew Bartlett
(This used to be commit 316a9b312a2d4a4ea5a5c70946fb06b61fab1a7d)
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(This used to be commit 47ffbbf67435904754469544390b67d34c958343)
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(This used to be commit ebe5e8399422eb7e2ff4deb546338823e2718907)
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(This used to be commit ce332130ea77159832da23bab760fa26921719e2)
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everywhere.
(This used to be commit 85c96a325867f7bcdb412ebc53f8a47dbf7cd89b)
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Also remove the search_options control earlier, before, rather than
after duplicating the request.
When we generate referalls in the partition module, the domain_scope
control with suppress them.
Andrew Bartlett
(This used to be commit fc57a119f53a7bc0a0eb76b868bbd7386b3c5008)
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(This used to be commit 85eeecf997a071ca7e7ad0247e8d34d49b7ffcbb)
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(This used to be commit 3616ced29ed2385300f7268a742a9090840b626f)
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