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Diffstat (limited to 'src/couch_index/src/couch_index_compactor.erl')
-rw-r--r-- | src/couch_index/src/couch_index_compactor.erl | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/src/couch_index/src/couch_index_compactor.erl b/src/couch_index/src/couch_index_compactor.erl deleted file mode 100644 index 8849cf67d..000000000 --- a/src/couch_index/src/couch_index_compactor.erl +++ /dev/null @@ -1,135 +0,0 @@ -% Licensed under the Apache License, Version 2.0 (the "License"); you may not -% use this file except in compliance with the License. You may obtain a copy of -% the License at -% -% http://www.apache.org/licenses/LICENSE-2.0 -% -% Unless required by applicable law or agreed to in writing, software -% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -% License for the specific language governing permissions and limitations under -% the License. - --module(couch_index_compactor). --behaviour(gen_server). - - -%% API --export([start_link/2, run/2, cancel/1, is_running/1, get_compacting_pid/1]). - -%% gen_server callbacks --export([init/1, terminate/2, code_change/3]). --export([handle_call/3, handle_cast/2, handle_info/2]). - - --include_lib("couch/include/couch_db.hrl"). - - --record(st, { - idx, - mod, - pid -}). - - -start_link(Index, Module) -> - gen_server:start_link(?MODULE, {Index, Module}, []). - - -run(Pid, IdxState) -> - gen_server:call(Pid, {compact, IdxState}). - - -cancel(Pid) -> - gen_server:call(Pid, cancel). - - -is_running(Pid) -> - gen_server:call(Pid, is_running). - -get_compacting_pid(Pid) -> - gen_server:call(Pid, get_compacting_pid). - -init({Index, Module}) -> - process_flag(trap_exit, true), - {ok, #st{idx=Index, mod=Module}}. - - -terminate(_Reason, State) -> - couch_util:shutdown_sync(State#st.pid), - ok. - - -handle_call({compact, _}, _From, #st{pid=Pid}=State) when is_pid(Pid) -> - {reply, {ok, Pid}, State}; -handle_call({compact, IdxState}, _From, #st{idx=Idx}=State) -> - Pid = spawn_link(fun() -> compact(Idx, State#st.mod, IdxState) end), - {reply, {ok, Pid}, State#st{pid=Pid}}; -handle_call(cancel, _From, #st{pid=undefined}=State) -> - {reply, ok, State}; -handle_call(cancel, _From, #st{pid=Pid}=State) -> - unlink(Pid), - exit(Pid, kill), - {reply, ok, State#st{pid=undefined}}; -handle_call(get_compacting_pid, _From, #st{pid=Pid}=State) -> - {reply, {ok, Pid}, State}; -handle_call(is_running, _From, #st{pid=Pid}=State) when is_pid(Pid) -> - {reply, true, State}; -handle_call(is_running, _From, State) -> - {reply, false, State}. - - -handle_cast(_Mesg, State) -> - {stop, unknown_cast, State}. - - -handle_info({'EXIT', Pid, normal}, #st{pid=Pid}=State) -> - {noreply, State#st{pid=undefined}}; -handle_info({'EXIT', Pid, Reason}, #st{pid = Pid} = State) -> - #st{idx = Idx, mod = Mod} = State, - {ok, IdxState} = gen_server:call(Idx, {compaction_failed, Reason}), - DbName = Mod:get(db_name, IdxState), - IdxName = Mod:get(idx_name, IdxState), - Args = [DbName, IdxName, Reason], - couch_log:error("Compaction failed for db: ~s idx: ~s reason: ~p", Args), - {noreply, State#st{pid = undefined}}; -handle_info({'EXIT', _Pid, normal}, State) -> - {noreply, State}; -handle_info({'EXIT', Pid, _Reason}, #st{idx=Pid}=State) -> - {stop, normal, State}; -handle_info(_Mesg, State) -> - {stop, unknown_info, State}. - - -code_change(_OldVsn, State, _Extra) -> - {ok, State}. - - -compact(Parent, Mod, IdxState) -> - DbName = Mod:get(db_name, IdxState), - %% We use with_db here to make sure we hold db open - %% during both phases of compaction - %% * compact - %% * recompact - couch_util:with_db(DbName, fun(_) -> - compact(Parent, Mod, IdxState, []) - end). - -compact(Idx, Mod, IdxState, Opts) -> - DbName = Mod:get(db_name, IdxState), - IndexName = Mod:get(idx_name, IdxState), - erlang:put(io_priority, {view_compact, DbName, IndexName}), - Args = [DbName, Mod:get(idx_name, IdxState)], - couch_log:info("Compaction started for db: ~s idx: ~s", Args), - {ok, NewIdxState} = couch_util:with_db(DbName, fun(Db) -> - Mod:compact(Db, IdxState, Opts) - end), - ok = Mod:commit(NewIdxState), - case gen_server:call(Idx, {compacted, NewIdxState}) of - recompact -> - couch_log:info("Compaction restarting for db: ~s idx: ~s", Args), - compact(Idx, Mod, NewIdxState, [recompact]); - _ -> - couch_log:info("Compaction finished for db: ~s idx: ~s", Args), - ok - end. |