[erlang-questions] slave feature

Fisher, Paul <>
Fri Sep 22 19:35:47 CEST 2017

I should have clarified our use... we have a version of the slave module that is exactly the same except for that feature. We want to have each node handle its own IO directly to the system.



Fellow, Engineering

From:  <> on behalf of Michael Truog <>
Sent: Friday, September 22, 2017 12:26:23 PM
To: Benoit Chesneau; 
Subject: Re: [erlang-questions] slave feature

On 09/22/2017 08:00 AM, Benoit Chesneau wrote:
> i’m looking for some usage examples of the slave feature apart for its use in tests? what was the original purpose?

You should be aware that nodes started with slave try to make the slave node use the master's filesystem automatically, though this doesn't work in all places (as shown in the bug https://urldefense.proofpoint.com/v2/url?u=https-3A__bugs.erlang.org_browse_ERL-2D446&d=DwIFEA&c=L_h2OePR2UWWefmqrezxOsP9Uqw55rRfX5bRtw9S4KY&r=PevFox_7LK44ZV_jlS5jRM2WItKtsHV4zN_CrbdT2aM&m=ZYaInvQKkF5t9wYb-bJCCzIq2vg5EMJ-yPQV5oGSzhE&s=6hwbTzX8VVRetMB-wwsC4dH_o0qsG_TWFYjhbCw7Hbs&e=  which affects tsung).  This behavior doesn't seem to be well documented (nor the -master command line argument used on the erl executable) but it appears to be the main deciding factor for whether slave is usable for a given situation (in addition to the linking that occurs between the master node, making the nodes not exist independently).

Best Regards,
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