hiwangzhihui commented on code in PR #6234:
URL: https://github.com/apache/hadoop/pull/6234#discussion_r1375373546
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hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java:
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@@ -1849,8 +1849,8 @@ protected Subject getSubject() {
@InterfaceStability.Evolving
public <T> T doAs(PrivilegedAction<T> action) {
if (LOG.isDebugEnabled()) {
- LOG.debug("PrivilegedAction [as: {}][action: {}]", this, action,
- new Exception());
+ LOG.debug("PrivilegedAction [as: {}][action: {}][from: {}]", this,
action,
+ Thread.currentThread().getStackTrace()[2]);
Review Comment:
When Debug mode is enabled the doAs print full stack too long, Too much
full-stack information is an overwhelming amount of information that could
overshadow other useful details.
The Stacks to determine at 2 represent the parent method call stack. This
information is sufficient to help us identify the problem.
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