Re: Scaling Flink for batch jobs

2021-08-16 Thread Gorjan Todorovski
Thanks, I'll check more about job tuning. On Mon, 16 Aug 2021 at 06:28, Caizhi Weng wrote: > Hi! > > if I use parallelism of 2 or 4 - it takes the same time. >> > It might be that there is no data in some parallelisms. You can click on > the nodes in Flink web UI and see if it is the case for ea

Re: Scaling Flink for batch jobs

2021-08-15 Thread Caizhi Weng
Hi! if I use parallelism of 2 or 4 - it takes the same time. > It might be that there is no data in some parallelisms. You can click on the nodes in Flink web UI and see if it is the case for each parallelism, or you can check out the metrics of each operator. if I don't increase parallelism and

Re: Scaling Flink

2018-01-24 Thread Hung
What about scaling up with #task slots left? You can obtain this information from Flink's endpoint. Cheers, Sendoh -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/

Re: Scaling Flink

2018-01-21 Thread Navneeth Krishnan
Hi, Any suggestions would really help. Thanks. On Mon, Jan 15, 2018 at 12:07 AM, Navneeth Krishnan < reachnavnee...@gmail.com> wrote: > Hi All, > > Has anyone tried scaling out flink cluster on EMR based on CPU usage/ > kafka lag/ back pressure monitoring? If so can you provide some insights on

Re: scaling flink

2015-06-05 Thread Stephan Ewen
t; -- > Jonathan (Bill) Sparks > Software Architecture > Cray Inc. > > From: Stephan Ewen > Reply-To: "user@flink.apache.org" > Date: Friday, June 5, 2015 12:48 PM > To: "user@flink.apache.org" > Subject: Re: scaling flink > > It was supposed

Re: scaling flink

2015-06-05 Thread Bill Sparks
ilto:user@flink.apache.org>" mailto:user@flink.apache.org>> Subject: Re: scaling flink It was supposed to mean "please PING us" ;-) On Fri, Jun 5, 2015 at 7:21 PM, Stephan Ewen mailto:se...@apache.org>> wrote: Hi Bill! For the WordCount case, these numbers are not unexp

Re: scaling flink

2015-06-05 Thread Stephan Ewen
It was supposed to mean "please PING us" ;-) On Fri, Jun 5, 2015 at 7:21 PM, Stephan Ewen wrote: > Hi Bill! > > For the WordCount case, these numbers are not unexpected. Flink does not > yet use a hash aggregator for the "reduce(v1, v2)" call, but uses a > sort-based aggregation for that. Flink'

Re: scaling flink

2015-06-05 Thread Stephan Ewen
Hi Bill! For the WordCount case, these numbers are not unexpected. Flink does not yet use a hash aggregator for the "reduce(v1, v2)" call, but uses a sort-based aggregation for that. Flink's sort aggregations are very reliable and very scalable compared to many hash aggregations, but often more ex