max heap on both instances is the same at 8gig, and only using around 1.5gig at the time of testing.
5.3.1 index size is 90MB 4.10.2 index size is 125MB ________________________________________ From: Shawn Heisey [apa...@elyograg.org] Sent: 19 February 2016 15:45 To: solr-user@lucene.apache.org Subject: Re: Slow commits On 2/19/2016 6:51 AM, Adam Neal [Extranet] wrote: > I've recently upgraded from 4.10.2 to 5.3.1 and I've hit an issue with slow > commits on one of my cores. The core in question is relatively small (56k > docs) and the issue only shows when commiting after a number of deletes, > commiting after additions is fine. As an example commiting after deleting > approximately 10% of the documents takes around 25mins. The same test on the > 4.10.2 instance takes around 1 second. This sounds like one of two possibilities, with a strong possibility that it's both: * You are encountering extreme garbage collection pauses from a heap that's too small. * The deletes are leading to segment merges that are proceeding slowly. What is the max heap set to on the new version? Do you know what it was set to on the old version? How much disk space is used by your 56000 document index? Thanks, Shawn ##################################################################################### This E-mail is the property of Mass Consultants Ltd. It is confidential and intended only for the use of the addressee or with its permission. Use by anyone else for any purpose is prohibited. If you are not the addressee, you should not use, disclose, copy or distribute this e-mail and should notify us of receipt immediately by return e-mail to the address where the e-mail originated. This E-mail may not have been sent through a secure system and accordingly (i) its contents should not be relied upon by any person without independent verification from Mass Consultants Ltd and (ii) 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 Mass Consultants Ltd in this regard. Any e-mails that are sent to Mass Consultants Ltd's e-mail addresses may be monitored by systems or persons other than the addressee, for the purposes of ascertaining whether the communication complies with the law and Mass Consultants Ltd's policies. Mass Consultants Ltd is registered in England No. 1705804, Enterprise House, Great North Road, Little Paxton, Cambs., PE19 6BN, United Kingdom. Tel: +44 (0) 1480 222600. #####################################################################################
