The lsof command on our CentOS 5.4 64bit server is v4.78. It doesn't support 
`lsof -PniTCP:$SOLR_PORT -sTCP:LISTEN' format in solr script, so when run 'solr 
start' it show a lot of message, mainly 'unsupported TCP/TPI info selection'. I 
google and find this link:

         [SOLR-7998] Solr start/stop script is currently incompatible with SUSE 
11 - ASF JIRA
        https://issues.apache.org/jira/browse/SOLR-7998

So not only SUSE has this prolbem. Running 'yum install lsof' but it says 
already latest version. I know lsof 4.86 under CentOS 6 is ok. Is there any way 
to upgrade lsof under CentOS 5 other than using yum? Or any other way to work 
around this problem?

scott.chu,scott....@udngroup.com
2016/6/16 (週四)

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