steveloughran commented on code in PR #6255:
URL: https://github.com/apache/hadoop/pull/6255#discussion_r1586263232
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java:
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@@ -1935,8 +1935,8 @@ 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:
we want the whole stack. If you are worried about interpretation, just
create an exception with a string like
```
new Exception("Stack trace for debugging")
```
same below
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