Hi, I restarted solr server with minor configuration changes and I/O and load on server increased a lot.
Details:- Solr version: 3.4 Jetty version: 6.1 Index Size: 30 GB Total document: 14.6 mn Request / second :20 (in day time) Last restart: 15 days ago Open threads: 50 - 60 (at any moment) A few days back we had swapped the indexes through the url based parameter (action=reload). Yesterday night we made two changes to the system. 1. set 'persistent="true"' in solr.xml (this is now reverted back) 2. created a "work" directory under the jetty home (as per https://issues.apache.org/jira/browse/SOLR-118) and restarted the jetty to let the changes take effect. Since the restart of yesterday the number of threads are crossing 100 many times, leading to increased load on server. I made sure the correct core is loaded and other configuration files are also fine. I am out of reasons to explain this. Any idea what could have happened? or how can I debug to optimize it? Current jetty thread pool setting is <New class="org.mortbay.thread.QueuedThreadPool"> <Set name="minThreads">10</Set> <Set name="maxThreads">10000</Set> <Set name="lowThreads">20</Set> </New> Rate of requests is similar to other days. -- Regards, Samar
