Daniel Templeton created YARN-7135:
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Summary: Clean up lock-try order in common scheduler code
Key: YARN-7135
URL: https://issues.apache.org/jira/browse/YARN-7135
Project: Hadoop YARN
Issue Type: Improvement
Components: scheduler
Affects Versions: 3.0.0-alpha4
Reporter: Daniel Templeton
There are many places that follow the pattern:{code}try {
lock.lock();
...
} finally {
lock.unlock();
}{code}
There are a couple of reasons that's a bad idea. The correct pattern
is:{code}lock.lock();
try {
...
} finally {
lock.unlock();
}{code}
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