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Fix silly oversight with variable names, add better data dir prep.

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This commit is contained in:
Gregory Burd 2012-04-15 16:56:19 -04:00
parent 4eaa02ac3f
commit e81a3480ab
1 changed files with 35 additions and 18 deletions
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43
src/riak_kv_lsm_btree_backend.erl
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@ -90,21 +90,25 @@ start(Partition, Config) ->
ok;
{error, {already_started, _}} ->
ok;
{error, Reason} ->
lager:error("Failed to init the lsm_btree backend: ~p", [Reason]),
{error, Reason}
{error, StartReason} ->
lager:error("Failed to init the lsm_btree backend: ~p", [StartReason]),
{error, StartReason}
end,
case AppStart of
ok ->
ok = filelib:ensure_dir(filename:join([DataRoot, "x"])),
DbName = filename:join(DataRoot, integer_to_list(Partition)),
case lsm_btree:open(DbName) of
case get_data_dir(DataRoot, integer_to_list(Partition)) of
{ok, DataDir} ->
case lsm_btree:open(DataDir) of
{ok, Tree} ->
{ok, #state{tree=Tree, partition=Partition}};
{error, OpenReason}=OpenError ->
lager:error("Failed to open lsm_btree: ~p\n", [OpenReason]),
OpenError
end;
{error, Reason} ->
lager:error("Failed to start lsm_btree backend: ~p\n", [Reason]),
{error, Reason}
end;
Error ->
Error
end
@ -121,8 +125,8 @@ stop(#state{tree=Tree}) ->
{ok, not_found, state()} |
{error, term(), state()}.
get(Bucket, Key, #state{tree=Tree}=State) ->
Key = to_object_key(Bucket, Key),
case lsm_btree:get(Tree, Key) of
BKey = to_object_key(Bucket, Key),
case lsm_btree:get(Tree, BKey) of
{ok, Value} ->
{ok, Value, State};
not_found ->
@ -136,9 +140,9 @@ get(Bucket, Key, #state{tree=Tree}=State) ->
-spec put(riak_object:bucket(), riak_object:key(), [index_spec()], binary(), state()) ->
{ok, state()} |
{error, term(), state()}.
put(Bucket, PrimaryKey, _IndexSpecs, Val, #state{tree=Tree}=State) ->
Key = to_object_key(Bucket, PrimaryKey),
ok = lsm_btree:put(Tree, Key, Val),
put(Bucket, Key, _IndexSpecs, Val, #state{tree=Tree}=State) ->
BKey = to_object_key(Bucket, Key),
ok = lsm_btree:put(Tree, BKey, Val),
{ok, State}.
%% @doc Delete an object from the lsm_btree backend
@ -146,8 +150,8 @@ put(Bucket, PrimaryKey, _IndexSpecs, Val, #state{tree=Tree}=State) ->
{ok, state()} |
{error, term(), state()}.
delete(Bucket, Key, _IndexSpecs, #state{tree=Tree}=State) ->
Key = to_object_key(Bucket, Key),
case lsm_btree:delete(Tree, Key) of
BKey = to_object_key(Bucket, Key),
case lsm_btree:delete(Tree, BKey) of
ok ->
{ok, State};
{error, Reason} ->
@ -271,6 +275,19 @@ callback(_Ref, _Msg, State) ->
%% Internal functions
%% ===================================================================
%% @private
%% Create the directory for this partition's LSM-BTree files
get_data_dir(DataRoot, Partition) ->
PartitionDir = filename:join([DataRoot, Partition]),
case filelib:ensure_dir(filename:join([filename:absname(DataRoot), Partition, "x"])) of
ok ->
{ok, PartitionDir};
{error, Reason} ->
lager:error("Failed to create lsm_btree dir ~s: ~p",
[PartitionDir, Reason]),
{error, Reason}
end.
%% @private
%% Return a function to fold over the buckets on this backend
fold_buckets_fun(FoldBucketsFun) ->