couchbeam:get_uuid(Server) returns uuid as expected. As I understand internally it fetches 1000 uuids at once and caches them in ets table. If you request one uuid at the time when there is no uuids left in ets the server behaves as expected - fetches another 1000 uuids from couchDB server.
couchbeam:get_uuids(Server, Count) returns the Count of uuids as expected when Count is less than number of uuids left in ets table, i.e if there is 10 uuids left and you call couchbeam:get_uuids(Server, 11) gen_server crashes.
couchbeam:get_uuids(couchbeam:server_connection(), 999) -> ListOfUuids %% 1 uuid left in ets.
couchbeam:get_uuids(couchbeam:server_connection(), 2) ->
=ERROR REPORT==== 21-Mar-2012::14:44:41 ===
* Generic server couchbeam_uuids terminating
* Last message in was {get_uuids,{server,"127.0.0.1",5984,[],[]},2}
* When Server state == {state}
* Reason for termination ==
* {function_clause,[{couchbeam_uuids,do_get_uuids1,
[[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>],
[],1],
[{file,"src/couchbeam_uuids.erl"},
{line,90}]},
{couchbeam_uuids,do_get_uuids,4,
[{file,"src/couchbeam_uuids.erl"},
{line,80}]},
{couchbeam_uuids,handle_call,3,
[{file,"src/couchbeam_uuids.erl"},
{line,48}]},
{gen_server,handle_msg,5,
[{file,"gen_server.erl"},{line,578}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,227}]}]}
* exception exit: {{function_clause,
[{couchbeam_uuids,do_get_uuids1,
[[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>],[],1],
[{file,"src/couchbeam_uuids.erl"},{line,90}]},
{couchbeam_uuids,do_get_uuids,4,
[{file,"src/couchbeam_uuids.erl"},{line,80}]},
{couchbeam_uuids,handle_call,3,
[{file,"src/couchbeam_uuids.erl"},{line,48}]},
{gen_server,handle_msg,5,
[{file,"gen_server.erl"},{line,578}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,227}]}]},
{gen_server,call,
[couchbeam_uuids,
{get_uuids,{server,"127.0.0.1",5984,[],[]},2}]}}
in function gen_server:call/2 (gen_server.erl, line 180)
(thinkpad@thinkpad)40>
=CRASH REPORT==== 21-Mar-2012::14:44:41 ===
crasher:
initial call: couchbeam_uuids:init/1
pid: <0.122.0>
registered_name: couchbeam_uuids
exception exit: {function_clause,
[{couchbeam_uuids,do_get_uuids1,
[[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>],[],1],
[{file,"src/couchbeam_uuids.erl"},{line,90}]},
{couchbeam_uuids,do_get_uuids,4,
[{file,"src/couchbeam_uuids.erl"},{line,80}]},
{couchbeam_uuids,handle_call,3,
[{file,"src/couchbeam_uuids.erl"},{line,48}]},
{gen_server,handle_msg,5,
[{file,"gen_server.erl"},{line,578}]},
{proc_lib,init_p_do_apply,3,
[{file,"proc_lib.erl"},{line,227}]}]}
in function gen_server:terminate/6 (gen_server.erl, line 737)
ancestors: [couchbeam_sup,<0.69.0>]
messages: []
links: [<0.70.0>]
dictionary: []
trap_exit: true
status: running
heap_size: 17711
stack_size: 24
reductions: 4809
neighbours:
couchbeam:get_uuid(Server) returns uuid as expected. As I understand internally it fetches 1000 uuids at once and caches them in ets table. If you request one uuid at the time when there is no uuids left in ets the server behaves as expected - fetches another 1000 uuids from couchDB server.
couchbeam:get_uuids(Server, Count) returns the Count of uuids as expected when Count is less than number of uuids left in ets table, i.e if there is 10 uuids left and you call couchbeam:get_uuids(Server, 11) gen_server crashes.
couchbeam:get_uuids(couchbeam:server_connection(), 999) -> ListOfUuids %% 1 uuid left in ets. couchbeam:get_uuids(couchbeam:server_connection(), 2) -> =ERROR REPORT==== 21-Mar-2012::14:44:41 === * Generic server couchbeam_uuids terminating * Last message in was {get_uuids,{server,"127.0.0.1",5984,[],[]},2} * When Server state == {state} * Reason for termination == * {function_clause,[{couchbeam_uuids,do_get_uuids1, [[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>], [],1], [{file,"src/couchbeam_uuids.erl"}, {line,90}]}, {couchbeam_uuids,do_get_uuids,4, [{file,"src/couchbeam_uuids.erl"}, {line,80}]}, {couchbeam_uuids,handle_call,3, [{file,"src/couchbeam_uuids.erl"}, {line,48}]}, {gen_server,handle_msg,5, [{file,"gen_server.erl"},{line,578}]}, {proc_lib,init_p_do_apply,3, [{file,"proc_lib.erl"},{line,227}]}]} * exception exit: {{function_clause, [{couchbeam_uuids,do_get_uuids1, [[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>],[],1], [{file,"src/couchbeam_uuids.erl"},{line,90}]}, {couchbeam_uuids,do_get_uuids,4, [{file,"src/couchbeam_uuids.erl"},{line,80}]}, {couchbeam_uuids,handle_call,3, [{file,"src/couchbeam_uuids.erl"},{line,48}]}, {gen_server,handle_msg,5, [{file,"gen_server.erl"},{line,578}]}, {proc_lib,init_p_do_apply,3, [{file,"proc_lib.erl"},{line,227}]}]}, {gen_server,call, [couchbeam_uuids, {get_uuids,{server,"127.0.0.1",5984,[],[]},2}]}} in function gen_server:call/2 (gen_server.erl, line 180) (thinkpad@thinkpad)40> =CRASH REPORT==== 21-Mar-2012::14:44:41 === crasher: initial call: couchbeam_uuids:init/1 pid: <0.122.0> registered_name: couchbeam_uuids exception exit: {function_clause, [{couchbeam_uuids,do_get_uuids1, [[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>],[],1], [{file,"src/couchbeam_uuids.erl"},{line,90}]}, {couchbeam_uuids,do_get_uuids,4, [{file,"src/couchbeam_uuids.erl"},{line,80}]}, {couchbeam_uuids,handle_call,3, [{file,"src/couchbeam_uuids.erl"},{line,48}]}, {gen_server,handle_msg,5, [{file,"gen_server.erl"},{line,578}]}, {proc_lib,init_p_do_apply,3, [{file,"proc_lib.erl"},{line,227}]}]} in function gen_server:terminate/6 (gen_server.erl, line 737) ancestors: [couchbeam_sup,<0.69.0>] messages: [] links: [<0.70.0>] dictionary: [] trap_exit: true status: running heap_size: 17711 stack_size: 24 reductions: 4809 neighbours:
=SUPERVISOR REPORT==== 21-Mar-2012::14:44:41 === Supervisor: {local,couchbeam_sup} Context: child_terminated Reason: {function_clause, [{couchbeam_uuids,do_get_uuids1, [[<<"16d84db3e3c1dd9f04fc7b8be69d7223">>],[],1], [{file,"src/couchbeam_uuids.erl"},{line,90}]}, {couchbeam_uuids,do_get_uuids,4, [{file,"src/couchbeam_uuids.erl"},{line,80}]}, {couchbeam_uuids,handle_call,3, [{file,"src/couchbeam_uuids.erl"},{line,48}]}, {gen_server,handle_msg,5, [{file,"gen_server.erl"},{line,578}]}, {proc_lib,init_p_do_apply,3, [{file,"proc_lib.erl"},{line,227}]}]} Offender: [{pid,<0.122.0>}, {name,couchbeam_uuids}, {mfargs,{couchbeam_uuids,start_link,[]}}, {restart_type,permanent}, {shutdown,2000}, {child_type,worker}]