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--></style></head><body bgcolor=white lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>The AMI of the cluster contain logstash configuration. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>The logstash configuration file contain something like:<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><i><span style='font-size:11.0pt'>input {<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:36.0pt'><i><span style='font-size:11.0pt'> file {<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:36.0pt'><i><span style='font-size:11.0pt'> path => "/opt/sge6/default/common/accounting" # path of the log file <o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:36.0pt'><i><span style='font-size:11.0pt'> type => "masterX" # tag name<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:36.0pt'><i><span style='font-size:11.0pt'>…<o:p></o:p></span></i></p><p class=MsoNormal><span style='font-size:11.0pt'>In order to identify the specific cluster on the logstash server, I need to have unique type for each cluster. (masterX in the example above )<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>I thought to run a script after the cluster is up, that change the ‘masterX’ with master-id or cluster name and then restart the logstash agent<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span style='font-size:11.0pt'>How can I run script automatic after the cluster is up?<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span style='font-size:11.0pt'>How can I know the master id, within the master command line, in order to insert it in the type line?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Shlomit.<o:p></o:p></span></p></div></body></html>