When investigation an high IOwait on my linux server, I wanted to find out which process is consuming so much IO, and in fact it was one of those hanging solr tests! It took some time to find a good tool, but here is it:
IOTOP (http://guichaz.free.fr/iotop/) - looks like TOP, but shows input and output + swapin/out for each process. On Ubuntu it is easy to install: apt-get install iotop. Important: it's installed in /usr/sbin and you need root privileges to run it. By using it, you can wonderfully track your Solr / Lucene instances and their I/O + Swap behavior (vmstat / top can only do this machine wise). Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
