HI sam, when you have a bottleneck issue your spout sats in UI shows the failed tuples or your bolts will turn into red colour in visualisation view of your topology.
when you note such changes in UI then your topology is having bottleneck. To avoid this bottle-necks you just need to increase parallelism of bolts. *Best regards,* *K.Sai Dilip Reddy.* On Wed, May 11, 2016 at 3:52 AM, sam mohel <[email protected]> wrote: > Thanks for replying . But how can I find bottleneck from storm ui . And > what can i do if I find it ? > > On Wednesday, May 11, 2016, cogumelosmaravilha <[email protected]> > wrote: > >> You can check where is the bottleneck using the ui of Storm. >> >> On 10-05-2016 22:20, sam mohel wrote: >> >> Iam a researcher and I hope you can help me on this questions my goal >> is to update algorithm that coder used to make data more accuracy. I have >> one Java process that make me need one supervisor right ? When I made >> machine core i5 with 8 ram as supervisor and machine core2duo with 2 ram as >> nimbus I got error in GC overhead as data is huge and need more ram . I >> swapped the two machines then everything worked but took long time . It >> took more than 20 hours . Is it normal ? Or what can I do ? >> >> >>
