Sean Zhong created STORM-297:
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Summary: Storm Performance cannot be scaled up by adding more CPU
cores
Key: STORM-297
URL: https://issues.apache.org/jira/browse/STORM-297
Project: Apache Storm (Incubating)
Issue Type: Bug
Reporter: Sean Zhong
Fix For: 0.9.2-incubating
We cannot scale up the performance by adding more CPU cores and increasing
parallelism.
For a 2 layer topology Spout ---shuffle grouping--> bolt, when message size is
small (around 100 bytes), we can find in the below picture that neither the CPU
nor the network is saturated. When message size is 100 bytes, only 40% of CPU
is used, only 18% of network is used, although we have a high parallelism
(overall we have 144 executors)
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