Unsubscribe, please -----Original Message----- From: abhay <abhay...@gmail.com> Sent: Tuesday, March 9, 2021 4:28 AM To: users@solr.apache.org Subject: Re: OutOfMemoryError: when deleting/updating the data
unsubscribe On Tue, Mar 9, 2021 at 3:50 PM Sripradeep <sriprad...@madstreetden.com> wrote: > Unsubscribe > > > > On Tue, Mar 9, 2021 at 3:10 PM Ashique <ashique....@gmail.com> wrote: > > > Unsubscribe please > > > > On Tuesday, March 9, 2021, Shawn Heisey <apa...@elyograg.org> wrote: > > > > > On 3/8/2021 8:18 PM, Hitesh Khamesra wrote: > > > > > >> We are getting OutOfMemoryError, while concurrently deleting and > > updating > > >> the data. Looks like we don't have a thread pool to merge > segment/index. > > >> Is > > >> it possible to control this behavior? > > >> > > > > > > Here's the important part from that massive exception stacktrace: > > > > > > Caused by: java.lang.OutOfMemoryError: unable to create native thread: > > > > > > There are exactly two ways you can fix OOME. One is to increase > > > the resource that has been depleted, the other is to change things > > > so that fewer resources are required. > > > > > > In this case you're running into an OS limit on the number of > > > processes that a user is allowed to start. The default setting > > > for this limit on > > all > > > Linux distros I have seen is 1024. It's pretty easy to have a > > > Solr instance with significantly more than a thousand threads. On > > > most operating systems, threads are handled by the kernel as processes. > Some > > > have separate entities for threads, but that's not very common. > > > > > > So what you're going to have to do is increase the number of > > > processes that the user which is running Solr is allowed to have. > > > > > > On most Linux distros this is usually done with the following file: > > > > > > /etc/security/limits.conf > > > > > > If you're running with a different OS, you'll need to research how > > > to increase the limit. > > > > > > Thanks, > > > Shawn > > > > > > -- Thanks and Regards Abhay Kumar Singh
