Having trouble starting up ecpool in a simple Erlang program #51
Description
I'm having issues setting up a basic pool. I'm using this code in my supervisor initialization:
init([]) ->
PoolSize = 10,
Urls = ["localhost:27017"],
Database = "test",
Username = "test",
Password = "test",
Type = single,
% Define the worker arguments
WorkerArgs = [
{hosts, Urls},
{database, Database},
{login, Username},
{password, Password},
{type, Type}
],
PoolOptions = [
{pool_size, PoolSize},
{auto_reconnect, 1},
{options, []},
{worker_options, WorkerArgs}
],
PoolSpec = ecpool:pool_spec(?APP, ?APP, mongo_client, PoolOptions),
{ok, {{one_for_all, 10, 100}, [PoolSpec]}}.
However, I keep getting this undef error and I can't figure out what's the source of it. Do you have any hints?
Eshell V15.0.1 (press Ctrl+G to abort, type help(). for help)
=CRASH REPORT==== 29-Aug-2024::16:19:21.153000 ===
crasher:
initial call: ecpool_worker:init/1
pid: <0.253.0>
registered_name: []
exception exit: undef
in function gen_server:init_it/6 (gen_server.erl, line 2038)
ancestors: [<0.252.0>,<0.250.0>,mongo_app_sup,<0.248.0>]
message_queue_len: 0
messages: []
links: [<0.252.0>]
dictionary: []
trap_exit: true
status: running
heap_size: 233
stack_size: 29
reductions: 103
neighbours:
=SUPERVISOR REPORT==== 29-Aug-2024::16:19:21.158000 ===
supervisor: {<0.252.0>,ecpool_worker_sup}
errorContext: start_error
reason: undef
offender: [{pid,undefined},
{id,{worker,1}},
{mfargs,
{ecpool_worker,start_link,
[mongo_app,1,mongo_client,
[{pool_size,10},
{auto_reconnect,1},
{options,[]},
{worker_options,
[{hosts,["localhost:27017"]},
{database,"test"},
{login,"test"},
{password,"test"},
{type,single}]}]]}},
{restart_type,transient},
{significant,false},
{shutdown,5000},
{child_type,worker}]
=SUPERVISOR REPORT==== 29-Aug-2024::16:19:21.158000 ===
supervisor: {<0.250.0>,ecpool_pool_sup}
errorContext: start_error
reason: {shutdown,{failed_to_start_child,{worker,1},undef}}
offender: [{pid,undefined},
{id,worker_sup},
{mfargs,
{ecpool_worker_sup,start_link,
[mongo_app,mongo_client,
[{pool_size,10},
{auto_reconnect,1},
{options,[]},
{worker_options,
[{hosts,["localhost:27017"]},
{database,"test"},
{login,"test"},
{password,"test"},
{type,single}]}]]}},
{restart_type,transient},
{significant,false},
{shutdown,infinity},
{child_type,supervisor}]
=SUPERVISOR REPORT==== 29-Aug-2024::16:19:21.158000 ===
supervisor: {local,mongo_app_sup}
errorContext: start_error
reason: {shutdown,
{failed_to_start_child,worker_sup,
{shutdown,{failed_to_start_child,{worker,1},undef}}}}
offender: [{pid,undefined},
{id,mongo_app},
{mfargs,
{ecpool,start_pool,
[mongo_app,mongo_client,
[{pool_size,10},
{auto_reconnect,1},
{options,[]},
{worker_options,
[{hosts,["localhost:27017"]},
{database,"test"},
{login,"test"},
{password,"test"},
{type,single}]}]]}},
{restart_type,permanent},
{significant,false},
{shutdown,5000},
{child_type,supervisor}]
=INFO REPORT==== 29-Aug-2024::16:19:21.158000 ===
application: mongo_app
exited: {{shutdown,
{failed_to_start_child,mongo_app,
{shutdown,
{failed_to_start_child,worker_sup,
{shutdown,
{failed_to_start_child,{worker,1},undef}}}}}},
{mongo_app_app,start,[normal,[]]}}
type: temporary
=CRASH REPORT==== 29-Aug-2024::16:19:21.158000 ===
crasher:
initial call: application_master:init/3
pid: <0.247.0>
registered_name: []
exception exit: {{shutdown,
{failed_to_start_child,mongo_app,
{shutdown,
{failed_to_start_child,worker_sup,
{shutdown,
{failed_to_start_child,{worker,1},undef}}}}}},
{mongo_app_app,start,[normal,[]]}}
in function application_master:init/3 (application_master.erl, line 143)
ancestors: [application_controller,<0.10.0>]
message_queue_len: 1
messages: [{'EXIT',<0.248.0>,normal}]
links: [<0.45.0>]
dictionary: []
trap_exit: true
status: running
heap_size: 376
stack_size: 29
reductions: 70
neighbours:
=INFO REPORT==== 29-Aug-2024::16:19:21.165000 ===
application: ecpool
exited: stopped
type: temporary
=INFO REPORT==== 29-Aug-2024::16:19:21.171000 ===
application: gproc
exited: stopped
type: temporary
=INFO REPORT==== 29-Aug-2024::16:19:21.176000 ===
application: mongodb
exited: stopped
type: temporary
=INFO REPORT==== 29-Aug-2024::16:19:21.176000 ===
application: pbkdf2
exited: stopped
type: temporary
=INFO REPORT==== 29-Aug-2024::16:19:21.176000 ===
application: poolboy
exited: stopped
type: temporary
=INFO REPORT==== 29-Aug-2024::16:19:21.176000 ===
application: bson
exited: stopped
type: temporary
===> Booted sasl
===> Failed to boot mongo_app for reason {{shutdown,
{failed_to_start_child,mongo_app,
{shutdown,
{failed_to_start_child,
worker_sup,
{shutdown,
{failed_to_start_child,
{worker,1},
undef}}}}}},
{mongo_app_app,start,[normal,[]]}}