xinglin commented on code in PR #6234:
URL: https://github.com/apache/hadoop/pull/6234#discussion_r1375693276
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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:
I am not convinced.
It seems `Thread.currentThread().getStackTrace()[2]` only points to the
parent method (setupIOStreams()), but not the complete call stack of the parent
method. Would it be useful to include the rest call stack as well? At least
that is what I believe.
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