Hi, Jerry:<div><br></div><div>Note those '-' signs in the quoted ones. �Erlang's demanding that an atom name be escaped in single quotes so that the hyphen doesn't get taken as a minus sign, thereby producing a gibberish expression.</div>
<div><br></div><div>If you're writing something to systematically parse things like this, you might find looking at an Erlang reference useful so you can get a sense for what types are involved in such expressions, and what the syntactic conventions and requirements are on their structures...</div>
<div><br></div><div>Best regards,</div><div>Jerry<br><br><div class="gmail_quote">On Wed, Nov 7, 2012 at 2:08 PM, Jerry Bao <span dir="ltr"><<a href="mailto:hijerrybao@gmail.com" target="_blank">hijerrybao@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Why do some�"rabbitmqctl cluster_status" outputs have single quote around the nodes, others do not?</div>
<div><br></div><div>For example,�</div><div><div><i>[root@jbao-vm1 ~]# rabbitmqctl cluster_status</i></div>
<div><i>Cluster status of node 'rabbit@jbao-vm1' ...</i></div><div><i>[{nodes,[{disc,['rabbit@jbao-vm2','rabbit@jbao-vm1']}]},</i></div><div><i>�{running_nodes,['rabbit@jbao-vm2',</i></div>
<div><i>� � � � � � � � �'rabbit@jbao-vm1']}]</i></div><div><i>...done.</i></div></div><div><i><br></i></div><div>On another cluster, I have somthing like this:</div><div><pre>rabbit1$ <i>rabbitmqctl cluster_status</i>
Cluster status of node rabbit@rabbit1 ...
[{nodes,[{disc,[rabbit@rabbit1,rabbit@rabbit2]},{ram,[rabbit@rabbit3]}]},
{running_nodes,[rabbit@rabbit2,rabbit@rabbit1]}]
...done.</pre></div><div>They are same version of RabbitMQ/Erlang/OTP, all on the same CentOS 5.7 64bit.</div><div><br></div>I am trying to write a script to parse it so I can monitor the status of the cluster.�I have been working with RabbitMQ for a while but am relatively new to Erlang. Does anybody know why? Is this a Erlang or OS locale issue?�<div>
<br></div><div>I know I can write my parser to handle both cases but just want to know what is causing that.<div><br></div><div>Thanks,</div><div><br></div><div>Jerry<br><div><br></div><div><br></div></div></div>
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