Yufei Gu created HADOOP-14926:
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Summary: Reconsider the default value of RPC timeout and document
it
Key: HADOOP-14926
URL: https://issues.apache.org/jira/browse/HADOOP-14926
Project: Hadoop Common
Issue Type: Improvement
Components: common
Affects Versions: 3.0.0-alpha3, 2.8.1
Reporter: Yufei Gu
We use zero as the default value of RPC timeout, which mean we don't enforce
any timeout aka infinity timeout. I think that *zero means infinite* is
counter-intuitive and error-prone through some Java libs(e.g. Socket
#setSoTimeout()) do that as well. Zero could be considered as a valid timeout
value, while negative one isn't. If we use zero to represent infinite, which
number could be used to represent zero timeout? I suggest use -1 as the default
value to indicate infinite.
We also need to document the default value and it means infinite timeout.
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