Try JavaMelody. It does a lot of monitoring straight out of the 'box'. For there, it is a small step to use wget to screen scrape values from Melody and send emails once they exceed a threshold.
-----Original Message----- From: Christopher Schultz [mailto:ch...@christopherschultz.net] Sent: Tuesday, 3 April 2012 5:50 AM To: Tomcat Users List Subject: Re: Bash script for monitoring status of the Tomcat server -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Chuck, On 4/2/12 3:28 PM, Caldarale, Charles R wrote: >> From: Miguel González Castaños >> [mailto:miguel_3_gonza...@yahoo.es] Subject: Bash script for >> monitoring status of the Tomcat server > >> I would like to run a bash script to monitor these values and >> warn me if the reach a certain level. Also a tool that generates >> some graphs would be great. > > Not quite sure how you can put "bash" and "graphs" together, but > nonetheless... > > 2) Use wget or curl to access Tomcat's text-mode manager app and > parse the results. +1 -- and use the JMXProxyServlet, which lets you query specific components like the connectors. We've been doing this lately to great success. You can use a tool like rrdtool to store the data and generate nice-looking graphs over time. You can also easily use the same feed to do real-time monitoring using a tool like Nagios, Ichinga, etc. > 3) Use a command-line JMX tool like jmxsh > (http://code.google.com/p/jmxsh/) to extract information and parse > out whatever you want. While this is a tempting idea, when you start probing many different values via JMX, you'll find that starting a dozen JVMs and connecting via JMX starts to strain the server unnecessarily. That's why I recommend using JMXProxyServlet -- you get the power of JMX without actually making a JMX connection. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk96AuMACgkQ9CaO5/Lv0PAMqwCgnMEf3G54uFmERY1h/ezDRhCk aKIAnibgy+FJlo2Qcr87iOE6+43EP+gR =NIfs -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
