Thanks varun, but its aman not amit. :) With Regards Aman Tandon
On Fri, May 23, 2014 at 4:22 PM, Varun Thacker <varunthacker1...@gmail.com>wrote: > @Amit - https://cwiki.apache.org/confluence/display/solr/DocValues > > > On Fri, May 23, 2014 at 4:15 PM, Jack Krupansky > <j...@basetechnology.com>wrote: > >> (In the future, please submit this type of request to the solr-user >> email list. Thanks.) >> >> How much system memory is available for OS file system caching? If your >> index (30G) doesn't fit in memory, that can cause thrashing. >> >> I would suggest that 320 million docs is way too much for a single Solr >> node – performance degradation of faceting is one example of the effects of >> doing so. 100 million would be a more reasonable upper bound. >> >> -- Jack Krupansky >> >> *From:* Alice.H.Yang (mis.cnsh04.Newegg) 41493 <alice.h.y...@newegg.com> >> *Sent:* Friday, May 23, 2014 5:45 AM >> *To:* mailto:dev@lucene.apache.org <dev@lucene.apache.org> >> *Subject:* (Issue) How improve solr facet performance >> >> >> Hi, Solr Developers >> >> >> >> We are blocked by solr facet performance when query hits many >> documents. (about 10,000,000) >> >> >> >> Details as follow: >> >> I have single solr node (solr version is 4.6 ), total has >> 320,000,000 documents( local index is about 30G) >> >> >> >> the index directory as follow： >> >> >> The cache configure as this: >> >> <filterCache class="solr.FastLRUCache" >> >> size="1024000" >> >> initialSize="1024000" >> >> autowarmCount="102400"/> >> >> >> >> <queryResultCache class="solr.LRUCache" >> >> size="1024000" >> >> initialSize="1024000" >> >> autowarmCount="102400"/> >> >> >> >> <documentCache class="solr.LRUCache" >> >> size="30720" >> >> initialSize="30720" >> >> autowarmCount="3072"/> >> >> >> >> >> >> When we query the field eg. default_search: type or default_search: retail, >> >> >> in the response , numfound is about one million and hits cache， QTime is >> “ <int name="QTime">2</int>” OR “<int name="QTime">1</int>.” >> >> >> >> But when we add several facet.field to do facet , QTime increase to >> 220ms or more. >> >> >> >> We add the parameter facet.threads=20, but the improvement is not >> obvious, and unstable. >> >> >> >> Do you have some advice on how improve the facet performance when hit >> many documents. >> >> >> >> >> >> >> >> Best Regards, >> >> *Alice Yang* >> >> *+86-021-51530666 <%2B86-021-51530666>*41493* >> >> *Floor 19,KaiKai Plaza,888,Wanhandu Rd,Shanghai(200042)* >> >> >> >> *ONCE YOU KNOW, YOU NEWEGG.* >> >> >> >> *CONFIDENTIALITY NOTICE: This email and any files transmitted with it may >> contain privileged or otherwise confidential information. It is intended >> only for the person or persons to whom it is addressed. If you received >> this message in error, you are not authorized to read, print, retain, copy, >> disclose, disseminate, distribute, or use this message any part thereof or >> any information contained therein. Please notify the sender immediately and >> delete all copies of this message. Thank you in advance for your >> cooperation.* >> >> >> 保密注意：此邮件及其附随文件可能包含了保密信息。该邮件的目的是发送给指定收件人。如果您非指定收件人而错误地收到了本邮件，您将无权阅读、打印、保存、复制、泄露、传播、分发或使用此邮件全部或部分内容或者邮件中包含的任何信息。请立即通知发件人，并删除该邮件。感谢您的配合！ >> >> >> > > > > -- > > > Regards, > Varun Thacker > http://www.vthacker.in/ >
