Cheng Lian created PARQUET-305:
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Summary: Logger instantiated for package org.apache.parquet may be
GC-ed
Key: PARQUET-305
URL: https://issues.apache.org/jira/browse/PARQUET-305
Project: Parquet
Issue Type: Bug
Components: parquet-mr
Affects Versions: 1.7.0
Reporter: Cheng Lian
Priority: Minor
This ticket is derived from SPARK-8122.
According to Javadoc of
[{{java.util.Logger}}|https://docs.oracle.com/javase/6/docs/api/java/util/logging/Logger.html]:
{quote}
It is important to note that the Logger returned by one of the getLogger
factory methods may be garbage collected at any time if a strong reference to
the Logger is not kept.
{quote}
However, the only reference to [the {{Logger}} created for package
{{org.apache.parquet}}|https://github.com/apache/parquet-mr/blob/apache-parquet-1.7.0/parquet-common/src/main/java/org/apache/parquet/Log.java#L58]
goes out of scope outside the static initialization block, and thus is
possible to be garbage collected.
More details can be found in [this
comment|https://issues.apache.org/jira/browse/SPARK-8122?focusedCommentId=14574419&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14574419].
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