How to show all processes in Erlang?
13,081
Solution 1
registered() is returning all the processes, but the shell is truncating output.
you can print the result to see everything:
io:format("~p~n", [registered()]).
Solution 2
> rp(registered()).
Documentation here
Solution 3
As long as your are in shell you can use regs()
:
1> regs().
** Registered procs on node nonode@nohost **
Name Pid Initial Call Reds Msgs
application_controlle <0.33.0> erlang:apply/2 65717 0
code_server <0.38.0> erlang:apply/2 592348 0
disk_log_server <0.129.0> disk_log_server:init/1 323 0
disk_log_sup <0.128.0> supervisor:disk_log_sup/1 367 0
dtls_connection_sup <0.70.0> supervisor:dtls_connectio 84 0
dtls_udp_sup <0.71.0> supervisor:dtls_udp_sup/1 81 0
erl_prim_loader <0.6.0> erlang:apply/2 24923843 0
erl_signal_server <0.46.0> gen_event:init_it/6 51 0
...
** Registered ports on node nonode@nohost **
Name Id Command
ok
Solution 4
I believe the easiest way is:
> io:write(registered()).
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Author by
0xAX
I'm a software engineer with a particular interest in the Linux, git, low-level programming and programming in general. Now I'm working as Erlang and Elixir developer at Travelping. Writing blog about erlang, elixir and low-level programming for x86_64. Author of the Linux Insides book. My linkedin profile. Twitter: @0xAX Github: @0xAX
Updated on November 06, 2020Comments
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0xAX over 3 years
I need get all registered process. I input
register().
amnesia_event,kernel_safe_sup,mnesia_monitor,mnesia_snmp_sup, mnesia_recover,mnesia_late_loader,mnesia_kernel_sup,inet_db, rex,kernel_sup,global_name_server,mnesia_checkpoint_sup, file_server_2,user,error_logger,global_group,mnesia_locker, standard_error_sup,popd_listener_sup,pop_fsm_sup,dets_sup, smtpd_listener_sup,disk_log_sup,disk_log_server,dets|...]
How can i get all names registered process, without
| ...]
(truncation)?Thank you.
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D.Nibon about 13 yearsI raise you with
rp(registered()).
Doc -
Peer Stritzinger about 13 years@D.Nibbon: Why not write your own answer so we can upvote it properly?
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Peer Stritzinger about 13 years+1 for the best solution to this, I missed rp() for a short way to display all of a structure without typing io:format abominations all the time. Thanks for pointing it out!
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tumbudu over 6 yearsAny way to know which process causing cpu load..?
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Yan Foto over 6 years@knocker not really sure about that!