Thanks Aljoscha,Thats why I am wondering about this. I dont see send/receive 
columns change at all....just 0's all the time.The only thing that changes is 
time stamp.Is this an indication that the nodes in the cluster are not 
participating in execution of the data?Thanks again.Amir-

      From: Aljoscha Krettek <>
 To: amir bahmanyari <>; User <> 
 Sent: Thursday, September 22, 2016 5:01 AM
 Subject: Re: How can I prove ....
Hi,depending on the data source you might not be able to stress CPU/MEM because 
the source might be to slow. As long as you see the numbers increasing in the 
Flink Dashboard for all operators you should be good.
On Thu, 22 Sep 2016 at 00:26 amir bahmanyari <> wrote:

That all nodes in a Flink Cluster are involved simultaneously in processing the 
data?Programmatically, graphically...I need to stress CPU , MEM and all 
resources to their max.How can I guarantee this is happening in Flink 
Cluster?Out of 4 nodes, this is the highest resource usage I see from 
"top"...Everything else is not even - 22:22:45 up 41 days,  2:39,  
1 user,  load average: 1.76, 1.55, 1.28Tasks: 344 total,   1 running, 343 
sleeping,   0 stopped,   0 zombie%Cpu(s):  5.4 us,  1.0 sy,  0.0 ni, 93.5 id,  
0.1 wa,  0.0 hi,  0.0 si,  0.0 stKiB Mem:  11551564+total, 65702020 used, 
49813632 free,   115072 buffersKiB Swap:        0 total,        0 used,        
0 free.  3148420 cached Mem

I am pretty sure I can push FlinkRunner to way more extent than this....And 
thats where true realistic perf numbers start showing up.Thanks+regards,Amir-


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