Re: CLOSE_WAIT and high search latency

I'm not a JVM nor kernel expert so take this with a pinch of salt... my guess woule be: Having more CLOSE_WAIT connections can *probably* affect you in two ways: 1. Longer GC Cycles pauses (not sure how much of the connection the JVM handles) 2. Some of the connections might be put on the

Re: CLOSE_WAIT and high search latency

Hi Jacques, Thank you for your reply. I'll give these parameters a try and report back. Do you think having higher number of CLOSE_WAIT connections affects the over all search delivery speed? Regards, Niraj On Tue, Feb 23, 2016 at 2:57 PM, Jacques du Rand wrote: >

Re: CLOSE_WAIT and high search latency

Try to fiddle with your tcp settings: /etc/sysctl.conf net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_intvl = 2 net.ipv4.tcp_keepalive_probes = 2 net.ipv4.tcp_keepalive_time = 180 That should help. On 23 February 2016 at 07:13, Niraj Aswani wrote: > Hi, > > I am

CLOSE_WAIT and high search latency

Hi, I am on solr 4.8.1 and running master-slave setup with lots of cores (>3K). Internally I maintain an instance of HTTPSolrServer for each core that is reused for querying the respective cores. A request is received by an intermediary tomcat and forwarded to another tomcat running Solr. Over