Hi, I am using solr 3.4.0 and I want to use this patch. There is a compilation error in 'TermInfosReader' class in the patch as it is not able to find following classes:
import org.apache.lucene.util.cache.Cache; import org.apache.lucene.util.cache.SimpleLRUCache; On google search I found that these classes were present in 'lucene-core-2.4.1' whereas solr-3.4.0 has 'lucene-core-3.4.0 included in it which does have above classes. Thanks & Regards, Anand Anand Nigam RBS Global Banking & Markets Office: +91 124 492 5506 -----Original Message----- From: Michael McCandless (JIRA) [mailto:j...@apache.org] Sent: 16 September 2011 01:03 To: dev@lucene.apache.org Subject: [jira] [Assigned] (LUCENE-2205) Rework of the TermInfosReader class to remove the Terms[], TermInfos[], and the index pointer long[] and create a more memory efficient data structure. [ https://issues.apache.org/jira/browse/LUCENE-2205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Michael McCandless reassigned LUCENE-2205: ------------------------------------------ Assignee: Michael McCandless > Rework of the TermInfosReader class to remove the Terms[], TermInfos[], and > the index pointer long[] and create a more memory efficient data structure. > ---------------------------------------------------------------------- > ---------------------------------------------------------------------- > ----------- > > Key: LUCENE-2205 > URL: https://issues.apache.org/jira/browse/LUCENE-2205 > Project: Lucene - Java > Issue Type: Improvement > Components: core/index > Environment: Java5 > Reporter: Aaron McCurry > Assignee: Michael McCandless > Fix For: 3.5 > > Attachments: RandomAccessTest.java, TermInfosReader.java, > TermInfosReaderIndex.java, TermInfosReaderIndexDefault.java, > TermInfosReaderIndexSmall.java, patch-final.txt, rawoutput.txt > > > Basically packing those three arrays into a byte array with an int array as > an index offset. > The performance benefits are stagering on my test index (of size 6.2 GB, with > ~1,000,000 documents and ~175,000,000 terms), the memory needed to load the > terminfos into memory were reduced to 17% of there original size. From 291.5 > MB to 49.7 MB. The random access speed has been made better by 1-2%, load > time of the segments are ~40% faster as well, and full GC's on my JVM were > made 7 times faster. > I have already performed the work and am offering this code as a patch. > Currently all test in the trunk pass with this new code enabled. I did write > a system property switch to allow for the original implementation to be used > as well. > -Dorg.apache.lucene.index.TermInfosReader=default or small I have also > written a blog about this patch here is the link. > http://www.nearinfinity.com/blogs/aaron_mccurry/my_first_lucene_patch. > html -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org *********************************************************************************** The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB. Authorised and regulated by the Financial Services Authority. The Royal Bank of Scotland N.V. is authorised and regulated by the De Nederlandsche Bank and has its seat at Amsterdam, the Netherlands, and is registered in the Commercial Register under number 33002587. Registered Office: Gustav Mahlerlaan 350, Amsterdam, The Netherlands. The Royal Bank of Scotland N.V. and The Royal Bank of Scotland plc are authorised to act as agent for each other in certain jurisdictions. This e-mail message is confidential and for use by the addressee only. If the message is received by anyone other than the addressee, please return the message to the sender by replying to it and then delete the message from your computer. Internet e-mails are not necessarily secure. The Royal Bank of Scotland plc and The Royal Bank of Scotland N.V. including its affiliates ("RBS group") does not accept responsibility for changes made to this message after it was sent. For the protection of RBS group and its clients and customers, and in compliance with regulatory requirements, the contents of both incoming and outgoing e-mail communications, which could include proprietary information and Non-Public Personal Information, may be read by authorised persons within RBS group other than the intended recipient(s). Whilst all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the RBS group in this regard and the recipient should carry out such virus and other checks as it considers appropriate. Visit our website at www.rbs.com *********************************************************************************** --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
