| %% ------------------------------------------------------------------- |
| %% |
| %% weatherreport - automated diagnostic tools for CouchDB |
| %% |
| %% Copyright (c) 2014 Cloudant |
| %% |
| %% This file is provided to you 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. |
| %% |
| %% ------------------------------------------------------------------- |
| |
| %% @doc Diagnostic that checks the current size of the mem3_sync |
| %% backlog. The size is printed as an info message if under a defined |
| %% threshold, or as a warning if above the threshold. |
| -module(weatherreport_check_internal_replication). |
| -behaviour(weatherreport_check). |
| |
| -export([ |
| description/0, |
| valid/0, |
| check/1, |
| format/1 |
| ]). |
| |
| -define(THRESHOLD, 1000000). |
| |
| -spec description() -> string(). |
| description() -> |
| "Check the number of pending internal replication jobs". |
| |
| -spec valid() -> boolean(). |
| valid() -> |
| weatherreport_node:can_connect(). |
| |
| -spec total_to_level(integer()) -> atom(). |
| total_to_level(Total) when Total > ?THRESHOLD -> |
| warning; |
| total_to_level(_Total) -> |
| info. |
| |
| -spec check(list()) -> [{atom(), term()}]. |
| check(_Opts) -> |
| Backlog = mem3_sync:get_backlog(), |
| [{total_to_level(Backlog), Backlog}]. |
| |
| -spec format(term()) -> {io:format(), [term()]}. |
| format(Backlog) -> |
| {"Total number of pending internal replication jobs: ~w", [Backlog]}. |