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Posted to dev@flink.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2017/04/28 15:46:04 UTC
[jira] [Created] (FLINK-6416) Potential divide by zero issue in
InputGateMetrics#refreshAndGetAvg()
Ted Yu created FLINK-6416:
-----------------------------
Summary: Potential divide by zero issue in InputGateMetrics#refreshAndGetAvg()
Key: FLINK-6416
URL: https://issues.apache.org/jira/browse/FLINK-6416
Project: Flink
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
{code}
int count = 0;
for (InputChannel channel : inputGate.getInputChannels().values()) {
if (channel instanceof RemoteInputChannel) {
RemoteInputChannel rc = (RemoteInputChannel) channel;
int size = rc.unsynchronizedGetNumberOfQueuedBuffers();
total += size;
++count;
}
}
return total / (float) count;
{code}
If count is zero at the end of the loop, the division would produce exception.
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