hanoidb crashes on exit when started by open_link #32

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opened 2014-11-26 22:20:23 +00:00 by brigadier · 1 comment

brigadier commented

2014-11-26 22:20:23 +00:00

(Migrated from github.com)

When hanoidb is started supervised like

init([]) ->
    RestartStrategy = one_for_one,
    MaxRestarts = 1,
    MaxSecondsBetweenRestarts = 10,
    SupFlags = {RestartStrategy, MaxRestarts, MaxSecondsBetweenRestarts},

    Restart = transient,
    Shutdown = 2000,
    Type = worker,

    AChild = {hanoidb, {hanoidb, open_link, [{local, hanoi_process}, "somedir.hanoi", []]},
                Restart, Shutdown, Type, [hanoidb]},

    {ok, {SupFlags, [AChild]}}

it crashes when application getting stopped by q() with

[error] Undefined:Undefined   crash: exit:shutdown [{plain_fsm,parent_EXIT,2,[{file,"src/plain_fsm.erl"},{line,508}]},{hanoidb_level,initialize,1,[{file,"src/hanoidb_level.erl"},{line,156}]},{proc_lib,init_p,3,[{file,"proc_lib.erl"},{line,222}]}]

error. There's no error if it gets stopped with hanoidb:close(hanoi_process). prior to q().

I think supervised processes should stop gracefully without manual actions.

When hanoidb is started supervised like ``` init([]) -> RestartStrategy = one_for_one, MaxRestarts = 1, MaxSecondsBetweenRestarts = 10, SupFlags = {RestartStrategy, MaxRestarts, MaxSecondsBetweenRestarts}, Restart = transient, Shutdown = 2000, Type = worker, AChild = {hanoidb, {hanoidb, open_link, [{local, hanoi_process}, "somedir.hanoi", []]}, Restart, Shutdown, Type, [hanoidb]}, {ok, {SupFlags, [AChild]}} ``` it crashes when application getting stopped by `q()` with ``` [error] Undefined:Undefined crash: exit:shutdown [{plain_fsm,parent_EXIT,2,[{file,"src/plain_fsm.erl"},{line,508}]},{hanoidb_level,initialize,1,[{file,"src/hanoidb_level.erl"},{line,156}]},{proc_lib,init_p,3,[{file,"proc_lib.erl"},{line,222}]}] ``` error. There's no error if it gets stopped with `hanoidb:close(hanoi_process).` prior to `q()`. I think supervised processes should stop gracefully without manual actions.

krestenkrab commented

2014-12-03 23:42:10 +00:00

(Migrated from github.com)

Feel free to enlighten me as to how this should best be fixed.

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Reference: greg/hanoidb#32

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