Quanlong Huang created IMPALA-13226:
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Summary: TupleCacheInfo unintentionally overwrites
Object.finalize()
Key: IMPALA-13226
URL: https://issues.apache.org/jira/browse/IMPALA-13226
Project: IMPALA
Issue Type: Bug
Components: Frontend
Reporter: Quanlong Huang
Assignee: Quanlong Huang
Object.finalize() is called by the JVM garbage collector on an object when
garbage collection determines that there are no more references to the object.
A subclass overrides the finalize method to dispose of system resources or to
perform other cleanup.
TupleCacheInfo.finalize() is not meant to be used during GC. We'd better use
another method name to avoid confusion.
{code:java}
public void finalize() {
finalizedHashString_ = hasher_.hash().toString();
hasher_ = null;
finalizedHashTrace_ = hashTraceBuilder_.toString();
hashTraceBuilder_ = null;
finalized_ = true;
}{code}
https://github.com/apache/impala/blob/d83b48cf72fa94ec7f6e55da409b4dff3350543b/fe/src/main/java/org/apache/impala/planner/TupleCacheInfo.java#L157-L163
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