Hi Aaron, Which version of Solr? How did you configure your heap? Is it standalone Solr or SolrCloud? A single server? Do you use some monitoring tool? Do you see some spikes, pauses or CPU usage is constant?
Thanks, Emir -- Monitoring - Log Management - Alerting - Anomaly Detection Solr & Elasticsearch Consulting Support Training - http://sematext.com/ > On 18 Mar 2019, at 11:47, Aaron Yingcai Sun <y...@vizrt.com> wrote: > > Hello, Solr! > > > We are having some performance issue when try to send documents for solr to > index. The repose time is very slow and unpredictable some time. > > > Solr server is running on a quit powerful server, 32 cpus, 400GB RAM, while > 300 GB is reserved for solr, while this happening, cpu usage is around 30%, > mem usage is 34%. io also look ok according to iotop. SSD disk. > > > Our application send 100 documents to solr per request, json encoded. the > size is around 5M each time. some times the response time is under 1 seconds, > some times could be 300 seconds, the slow response happens very often. > > > "Soft AutoCommit: disabled", "Hard AutoCommit: if uncommited for 3600000ms; > if 1000000 uncommited docs" > > > There are around 100 clients sending those documents at the same time, but > each for the client is blocking call which wait the http response then send > the next one. > > > I tried to make the number of documents smaller in one request, such as 20, > but still I see slow response time to time, like 80 seconds. > > > Would you help to give some hint how improve the response time? solr does > not seems very loaded, there must be a way to make the response faster. > > > BRs > > //Aaron > > >
