[jira] [Created] (FLINK-20645) Extra space typo when assembling dynamic configs

[Shang Yuanchun (Jira)]

Li Wang created FLINK-20645:
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             Summary: Extra space typo when assembling dynamic configs
                 Key: FLINK-20645
                 URL: https://issues.apache.org/jira/browse/FLINK-20645
             Project: Flink
          Issue Type: Bug
            Reporter: Li Wang


while starting task manager, I got the error below
{code:java}
"Caused by: org.apache.flink.configuration.IllegalConfigurationException: The required configuration option Key: 'taskmanager.cpu.cores' , default: null (fallback keys: []) is not set
{code}
 

Checking TM starting command I got something like
{code:java}
-D taskmanager.memory.framework.off-heap.size=134217728b -D taskmanager.memory.network.max=67108864b -D taskmanager.memory.network.min=67108864b -D taskmanager.memory.framework.heap.size=134217728b -D taskmanager.memory.managed.size=57346620b -D taskmanager.cpu.cores=1.0 -D taskmanager.memory.task.heap.size=1518663108b -D taskmanager.memory.task.off-heap.size=0b
{code}
Looks like the extra spaces between "-D" and parameters causes those dynamic options can't be passed in correctly.

Related code is [here|https://github.com/apache/flink/blob/2ad92169a4a4ffc92d32783f8777a132e1dac7c4/flink-core/src/main/java/org/apache/flink/configuration/ConfigurationUtils.java#L180] 



 



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