[all][leo_redundant_manager] Keep dumping the same error in case mq worker process died

[mocchira]

This can happen in all components (leo_manager, leo_storage, leo_gateway).

[W]     gateway_0@127.0.0.1     2018-01-17 11:25:00.20034 +0900 1516155900      null:null       0       {module,"leo_membership_cluster_local"},{function,"compare_with_remote_chksum/3"},{line,405},{body,{'storag
[email protected]',timeout}}
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:00.26088 +0900 1516155900      ets:tab2list    710     gen_server mq_worker_node_2 terminated with reason: bad argument in call to ets:match_object(leo_object_storage_containers, '_') in ets:tab2list/1 line 710
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:00.26673 +0900 1516155900      ets:tab2list    710     CRASH REPORT Process mq_worker_node_2 with 0 neighbours exited with reason: bad argument in call to ets:mat
ch_object(leo_object_storage_containers, '_') in ets:tab2list/1 line 710
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:00.27767 +0900 1516155900      ets:tab2list    710     Supervisor leo_mq_sup had child mq_worker_node_2 started with leo_mq_server:start_link(mq_worker_node_2, 2, {mq_properties,mq_worker_node,undefined,leo_membership_mq_client,leveldb,3,1,"./work/queue/membe...",...}) at <0.1575.0> exit with reason bad argument in call to ets:match_object(leo_object_storage_containers,
'_') in ets:tab2list/1 line 710 in context child_terminated
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:01.670040 +0900        1516155901      null:null       0       {module,"leo_backend_db_eleveldb"},{function,"first_n/2"},{line,293},{body,{badarg,[{eleveldb,async_iterator,[#Ref<0.0.2.4181>,<<>>,[]],[]},{eleveldb,iterator,2,[{file,"src/eleveldb.erl"},{line,200}]},{leo_backend_db_eleveldb,fold,4,[{file,"src/leo_backend_db_eleveldb.erl"},{line,386}]},{leo_backend_db_eleveldb,first_n,3,[{file,"src/leo_backend_db_eleveldb.erl"},{line,284}]},{leo_backend_db_server,handle_call,3,[{file,"src/leo_backend_db_server.erl"},{line,338}]},{gen_server,try_handle_call,4,[{file,"gen_server.erl"
},{line,615}]},{gen_server,handle_msg,5,[{file,"gen_server.erl"},{line,647}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}}
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:01.671479 +0900        1516155901      null:null       0       {module,"leo_mq_server"},{function,"handle_call/3"},{line,294},{body,{badarg,[{eleveldb,async_iterator,[#Ref<0.0.2.4181>,<<>>,[]],[]},{eleveldb,iterator,2,[{file,"src/eleveldb.erl"},{line,200}]},{leo_backend_db_eleveldb,fold,4,[{file,"src/leo_backend_db_eleveldb.erl"},{line,386}]},{leo_backend_db_eleveldb,first_n,3,[{file,"src/leo_backend_db_eleveldb.erl"},{line,284}]},{leo_backend_db_server,handle_call,3,[{file,"src/leo_backend_db_server.erl"},{line,338}]},{gen_server,try_handle_call,4,[{file,"gen_server.erl"},{lin
e,615}]},{gen_server,handle_msg,5,[{file,"gen_server.erl"},{line,647}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}}
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:07.121052 +0900        1516155907      null:null       0       {module,"leo_backend_db_eleveldb"},{function,"first_n/2"},{line,293},{body,{badarg,[{eleveldb,async_iterator,[#Ref<0.0.1.1383>,<<>>,[]],[]},{eleveldb,iterator,2,[{file,"src/eleveldb.erl"},{line,200}]},{leo_backend_db_eleveldb,fold,4,[{file,"src/leo_backend_db_eleveldb.erl"},{line,386}]},{leo_backend_db_eleveldb,first_n,3,[{file,"src/leo_backend_db_eleveldb.erl"},{line,284}]},{leo_backend_db_server,handle_call,3,[{file,"src/leo_backend_db_server.erl"},{line,338}]},{gen_server,try_handle_call,4,[{file,"gen_server.erl"
},{line,615}]},{gen_server,handle_msg,5,[{file,"gen_server.erl"},{line,647}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}}
[E]     gateway_0@127.0.0.1     2018-01-17 11:25:07.122604 +0900        1516155907      null:null       0       {module,"leo_mq_server"},{function,
... keep dumping the same error above

There seems to be something wrong (probably file handle leak) in termination processing.