Hello group, since two days we have huge problems with our solr 5.4.1 installation.
( yes, we have to update it. But this will not be a solution right now ) All path=/select requests are still very fast. But all /update Requests take >30sec up to 3 minutes. The index is not very big (1.000.000 documents) and its size on disk is about 1GB The virtual server (ESX) has 8GB RAM and 8 cores. IO is good. solr was started with -Xms4096M -Xmx4096M ( but we changed it to higher and lower values during our tests ) We have a lot of /select requests at the moment (10.000/Minute) but this is not unusual for this installation and we didn't have this update problems before. On another identical sleeping core on the same server, we are able to make fast updates. We experience slow updates only on the core with high selecting traffic. So it seems not to be a general problem with java, GC, .... We disabled all other insert/updates and we are able to reproduce this slow update behaviour in the Solr Admin console with a single update of one document. We are lost. We didn't change the Solr configuration. The load seems to be not higher then during previous peaks The developers didn't change anything (so they say) Search is still fast. But single simple updates takes >30sec.... Any ideas about this? We tried quite a lot the last two days.... Cheers Felix
