Hi Ravi Kiran, I am using Solr version 1.4, and the solution suggested by you seems to be there in solrconfig.xml already.
But after reading your message again now, I checked the release notes(CHANGES.TXT) of Solr 1.4.1 and I found these two entries.. * SOLR-1711: SolrJ - StreamingUpdateSolrServer had a race condition that could halt the streaming of documents. The original patch to fix this (never officially released) introduced another hanging bug due to connections not being released. (Attila Babo, Erik Hetzner via yonik) * SOLR-1748, SOLR-1747, SOLR-1746, SOLR-1745, SOLR-1744: Streams and Readers retrieved from ContentStreams are not closed in various places, resulting in file descriptor leaks. (Christoff Brill, Mark Miller) Though I am not completely sure, I suspect by upgrading my Solr to 1.4.1 could solve this issue. I am in the process of upgrading my Solr. Will keep you posted on the updates when I have some.. Cheers Shan -- View this message in context: http://lucene.472066.n3.nabble.com/Http-Connection-is-hanging-while-deleteByQuery-tp2367405p2445076.html Sent from the Solr - User mailing list archive at Nabble.com.