can we get this person blocked? -- John Blythe
On Wed, May 13, 2020 at 1:05 PM ART GALLERY <a...@goretoy.com> wrote: > check out the videos on this website TROO.TUBE don't be such a > sheep/zombie/loser/NPC. Much love! > https://troo.tube/videos/watch/aaa64864-52ee-4201-922f-41300032f219 > > On Mon, May 4, 2020 at 5:43 PM Webster Homer > <webster.ho...@milliporesigma.com> wrote: > > > > My company has several Solrcloud environments. In our most active cloud > we are seeing outages that are related to GC pauses. We have about 10 > collections of which 4 get a lot of traffic. The solrcloud consists of 4 > nodes with 6 processors and 11Gb heap size (25Gb physical memory). > > > > I notice that the 4 nodes seem to do their garbage collection at almost > the same time. That seems strange to me. I would expect them to be more > staggered. > > > > This morning we had a GC pause that caused problems . During that time > our application service was reporting "No live SolrServers available to > handle this request" > > > > Between 3:55 and 3:56 AM all 4 nodes were having some amount of garbage > collection pauses, for 2 of the nodes it was minor, for one it was 50%. For > 3 nodes it lasted until 3>57. However the node with the worst impact > didn't recover until 4am. > > > > How is it that all 4 nodes were in lock step doing GC? If they all are > doing GC at the same time it defeats the purpose of having redundant cloud > servers. > > We just this weekend switched to use G1GC from CMS > > > > At this point in time we also saw that traffic to solr was not well > distributed. The application calls solr using CloudSolrClient which I > thought did its own load balancing. We saw 10X more traffic going to one > solr node that all the others, the we saw it start hitting another node. > All solr queries come from our application. > > > > During this period of time I saw only 1 error message in the solr log: > > ERROR (zkConnectionManagerCallback-8-thread-1) [ ] > o.a.s.c.ZkController There was a problem finding the leader in > zk:org.apache.solr.common.SolrException: Could not get leader props > > > > We are currently using Solr 7.7.2 > > GC Tuning > > GC_TUNE="-XX:NewRatio=3 \ > > -XX:SurvivorRatio=4 \ > > -XX:TargetSurvivorRatio=90 \ > > -XX:MaxTenuringThreshold=8 \ > > -XX:+UseG1GC \ > > -XX:MaxGCPauseMillis=250 \ > > -XX:+ParallelRefProcEnabled" > > > > > > > > > > This message and any attachment are confidential and may be privileged > or otherwise protected from disclosure. If you are not the intended > recipient, you must not copy this message or attachment or disclose the > contents to any other person. If you have received this transmission in > error, please notify the sender immediately and delete the message and any > attachment from your system. Merck KGaA, Darmstadt, Germany and any of its > subsidiaries do not accept liability for any omissions or errors in this > message which may arise as a result of E-Mail-transmission or for damages > resulting from any unauthorized changes of the content of this message and > any attachment thereto. Merck KGaA, Darmstadt, Germany and any of its > subsidiaries do not guarantee that this message is free of viruses and does > not accept liability for any damages caused by any virus transmitted > therewith. > > > > > > > > Click http://www.merckgroup.com/disclaimer to access the German, > French, Spanish and Portuguese versions of this disclaimer. >
