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<body class='hmmessage'><div dir='ltr'><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">I have been trying to use gproc with </span><a href="https://github.com/garret-smith/gen_leader_revival" target="" style="line-height: 21.3px; color: rgb(0, 104, 207); cursor: pointer; font-size: 15px; background-color: rgb(255, 255, 255);">https://github.com/garret-smith/gen_leader_revival</a><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">. I found that registering a name which is already registered will destroy the existing registration of the name, and a remote node is unaware of this. See the following steps:</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">Register node1 shell as global name 'abcde' on node1, the name is visable on node2 and sending messages from node2 shell to 'abcde' works fine:</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)1> gproc:reg({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">true</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)2> gproc:where({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><0.229.0></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node2)1> gproc:where({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><8049.229.0></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node2)2> gproc:send({n, g, abcde}, hello).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">hello</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)3> flush().</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">Shell got hello</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">ok</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">Now on node1 shell register with the name again, it removes the existing registration:</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)4> gproc:reg({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">** exception error: bad argument</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"> in function gproc:reg/1</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"> called as gproc:reg({n,g,abcde})</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)5> gproc:where({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">undefined</tt><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">But on node2 the shell still gets <8049.229.0>:</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node2)3> gproc:where({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><8049.229.0></tt><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">And sending message from node2 shell to 'abcde' still works 'fine', but the node1 shell doesn't get any message:</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node2)4> gproc:send({n, g, abcde}, hello).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">hello</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)6> flush().</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">ok</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">Now if I register node1 shell as {n, g, abcde} again, everything works fine again:</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1)7> gproc:reg({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">true</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node2)5> gproc:where({n, g, abcde}).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><8049.268.0></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node2)6> gproc:send({n, g, abcde}, hello).</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">hello</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">(node1) 8> flush().</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">Shell got hello</tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px;"></tt><tt style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);">ok</tt><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">This doesn't look right to me.</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">1) When registering with a name already registered, why doesn't gproc return something like {error, already_registered}?</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">2) After the registration is removed, why does a remove node still sees the non-existent registration?</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">Thanks</span><br style="line-height: 21.3px; color: rgb(68, 68, 68); font-size: 15px; background-color: rgb(255, 255, 255);"><span style="color: rgb(68, 68, 68); font-size: 15px; line-height: 21.3px; background-color: rgb(255, 255, 255);">Khitai</span><style><!--
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