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-rw-r--r--lib/mnesia/src/mnesia_controller.erl37
-rw-r--r--lib/mnesia/src/mnesia_schema.erl33
2 files changed, 47 insertions, 23 deletions
diff --git a/lib/mnesia/src/mnesia_controller.erl b/lib/mnesia/src/mnesia_controller.erl
index 9bc480e619..95589e7a3a 100644
--- a/lib/mnesia/src/mnesia_controller.erl
+++ b/lib/mnesia/src/mnesia_controller.erl
@@ -1,19 +1,19 @@
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
-%%
+%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
-%%
+%%
%% %CopyrightEnd%
%%
@@ -52,6 +52,7 @@
async_dump_log/1,
sync_dump_log/1,
connect_nodes/1,
+ connect_nodes/2,
wait_for_schema_commit_lock/0,
release_schema_commit_lock/0,
create_table/1,
@@ -94,7 +95,7 @@
load_and_reply/2,
send_and_reply/2,
wait_for_tables_init/2,
- connect_nodes2/2
+ connect_nodes2/3
]).
-import(mnesia_lib, [set/2, add/2]).
@@ -420,12 +421,15 @@ try_schedule_late_disc_load(Tabs, Reason, MsgTag) ->
[[Tabs, Reason, MsgTag], AbortReason])
end.
-connect_nodes(Ns) ->
+connect_nodes(Ns) ->
+ connect_nodes(Ns, fun default_merge/1).
+
+connect_nodes(Ns, UserFun) ->
case mnesia:system_info(is_running) of
no ->
{error, {node_not_running, node()}};
yes ->
- Pid = spawn_link(?MODULE,connect_nodes2,[self(),Ns]),
+ Pid = spawn_link(?MODULE,connect_nodes2,[self(),Ns, UserFun]),
receive
{?MODULE, Pid, Res, New} ->
case Res of
@@ -443,7 +447,7 @@ connect_nodes(Ns) ->
end
end.
-connect_nodes2(Father, Ns) ->
+connect_nodes2(Father, Ns, UserFun) ->
Current = val({current, db_nodes}),
abcast([node()|Ns], {merging_schema, node()}),
{NewC, OldC} = mnesia_recover:connect_nodes(Ns),
@@ -451,7 +455,7 @@ connect_nodes2(Father, Ns) ->
New1 = mnesia_lib:intersect(Ns, Connected),
New = New1 -- Current,
process_flag(trap_exit, true),
- Res = try_merge_schema(New),
+ Res = try_merge_schema(New, UserFun),
Msg = {schema_is_merged, [], late_merge, []},
multicall([node()|Ns], Msg),
After = val({current, db_nodes}),
@@ -465,7 +469,7 @@ connect_nodes2(Father, Ns) ->
merge_schema() ->
AllNodes = mnesia_lib:all_nodes(),
- case try_merge_schema(AllNodes) of
+ case try_merge_schema(AllNodes, fun default_merge/1) of
ok ->
schema_is_merged();
{aborted, {throw, Str}} when is_list(Str) ->
@@ -474,8 +478,11 @@ merge_schema() ->
fatal("Failed to merge schema: ~p~n", [Else])
end.
-try_merge_schema(Nodes) ->
- case mnesia_schema:merge_schema() of
+default_merge(F) ->
+ F([]).
+
+try_merge_schema(Nodes, UserFun) ->
+ case mnesia_schema:merge_schema(UserFun) of
{atomic, not_merged} ->
%% No more nodes that we need to merge the schema with
ok;
@@ -488,11 +495,11 @@ try_merge_schema(Nodes) ->
im_running(OldFriends, NewFriends),
im_running(NewFriends, OldFriends),
- try_merge_schema(Nodes);
+ try_merge_schema(Nodes, UserFun);
{atomic, {"Cannot get cstructs", Node, Reason}} ->
dbg_out("Cannot get cstructs, Node ~p ~p~n", [Node, Reason]),
timer:sleep(1000), % Avoid a endless loop look alike
- try_merge_schema(Nodes);
+ try_merge_schema(Nodes, UserFun);
Other ->
Other
end.
diff --git a/lib/mnesia/src/mnesia_schema.erl b/lib/mnesia/src/mnesia_schema.erl
index 354431a296..17e570b881 100644
--- a/lib/mnesia/src/mnesia_schema.erl
+++ b/lib/mnesia/src/mnesia_schema.erl
@@ -1,19 +1,19 @@
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
-%%
+%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
-%%
+%%
%% %CopyrightEnd%
%%
@@ -62,6 +62,7 @@
list2cs/1,
lock_schema/0,
merge_schema/0,
+ merge_schema/1,
move_table/3,
opt_create_dir/2,
prepare_commit/3,
@@ -2650,10 +2651,16 @@ make_dump_tables([]) ->
%% Merge the local schema with the schema on other nodes
merge_schema() ->
- schema_transaction(fun() -> do_merge_schema() end).
+ schema_transaction(fun() -> do_merge_schema([]) end).
+
+merge_schema(UserFun) ->
+ schema_transaction(fun() -> UserFun(fun(Arg) -> do_merge_schema(Arg) end) end).
-do_merge_schema() ->
+
+do_merge_schema(LockTabs0) ->
{_Mod, Tid, Ts} = get_tid_ts_and_lock(schema, write),
+ LockTabs = [{T, tab_to_nodes(T)} || T <- LockTabs0],
+ [get_tid_ts_and_lock(T,write) || {T,_} <- LockTabs],
Connected = val(recover_nodes),
Running = val({current, db_nodes}),
Store = Ts#tidstore.store,
@@ -2665,9 +2672,12 @@ do_merge_schema() ->
mnesia:abort({bad_commit, {missing_lock, Miss}})
end,
case Connected -- Running of
- [Node | _] ->
+ [Node | _] = OtherNodes ->
%% Time for a schema merging party!
mnesia_locker:wlock_no_exist(Tid, Store, schema, [Node]),
+ [mnesia_locker:wlock_no_exist(
+ Tid, Store, T, mnesia_lib:intersect(Ns, OtherNodes))
+ || {T,Ns} <- LockTabs],
case rpc:call(Node, mnesia_controller, get_cstructs, []) of
{cstructs, Cstructs, RemoteRunning1} ->
LockedAlready = Running ++ [Node],
@@ -2681,6 +2691,9 @@ do_merge_schema() ->
end,
NeedsLock = RemoteRunning -- LockedAlready,
mnesia_locker:wlock_no_exist(Tid, Store, schema, NeedsLock),
+ [mnesia_locker:wlock_no_exist(Tid, Store, T,
+ mnesia_lib:intersect(Ns,NeedsLock))
+ || {T,Ns} <- LockTabs],
{value, SchemaCs} =
lists:keysearch(schema, #cstruct.name, Cstructs),
@@ -2714,6 +2727,10 @@ do_merge_schema() ->
not_merged
end.
+tab_to_nodes(Tab) when is_atom(Tab) ->
+ Cs = val({Tab, cstruct}),
+ mnesia_lib:cs_to_nodes(Cs).
+
make_merge_schema(Node, [Cs | Cstructs]) ->
Ops = do_make_merge_schema(Node, Cs),
Ops ++ make_merge_schema(Node, Cstructs);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 01:00:30 +0000