[erlang-questions] Question about using ETS, PUT/GET

[flowerstars]

Hi everyone,

I am working on developing modules on ejabberd. I tried to use ETS in
start/2. The codes are following:

  ets:new(table_name, [named_table, public, bag]),
  ets:insert(table_name, {num, 999}),

I use "ets:lookup(table_name, num)," in another function within the same
file to read the value "999".

The issue is I cannot start ejabberd, according to the log, when the second
time this module starts, ejabberd tells there is an argument error.

Actually, I just want to share some variables. I used to use PUT/2 and
GET/1, I use "put(key, Value)" in start/2, and use "get(key)" in another
function within one file. However, what I got is "undefined". Are they in
the same process? 

Any help is appreciated!!

Thanks a lot! 


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