Ivan Andika created HDDS-17378:
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Summary: DatanodeStateMachine is not properly constructed
Key: HDDS-17378
URL: https://issues.apache.org/jira/browse/HDDS-17378
Project: Apache Ozone
Issue Type: Bug
Reporter: Ivan Andika
Assignee: Ivan Andika
DatanodeStateMachine "this" reference escapes during its construction. See the
following implementation below
{code:java}
context = new StateContext(this.conf, DatanodeStates.getInitState(), this,
threadNamePrefix);
{code}
>From "Java Concurrency in Practice", this means the DatanodeStateMachine is
>{_}not properly constructed{_}.
See the excerpt: "An object is in a predictable, consistent state only after
its constructor returns, so publishing an object from within its constructor
can publish an incompletely constructed object"
And the exact imperative "Do not allow the `this` reference to escape during
construction"
This issue seems to cause the workaround of having constructionLock in
HDDS-3116.
This can be improved.
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