[jira] [Created] (ZEPPELIN-5308) username in paragraph "last updated by" status is reset

["Vladimir Prus (Jira)" <ji...@apache.org>]

Vladimir Prus created ZEPPELIN-5308:
---------------------------------------

             Summary: username in paragraph "last updated by" status is reset
                 Key: ZEPPELIN-5308
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-5308
             Project: Zeppelin
          Issue Type: Bug
    Affects Versions: 0.9.0
            Reporter: Vladimir Prus


Create a note and execute a paragraph. Observe that paragraph say something like
{code:java}
Took 1 min 9 sec. Last updated by vladimir at April 01 2021, 1:46:32 PM.{code}
Restart Zeppelin.

Observed effect: the paragraph footer say:
{code:java}
Took 1 min 9 sec. Last updated by anonymous at April 01 2021, 1:46:32 PM.{code}
Expected: the username in paragraph footer is not cleared, since it's very useful to know who run this paragraph, especially for old paragraph where it's otherwise not obvious.

It appears to be cleared in Note.java 
{code:java}
public void postProcessParagraphs() {
  for (Paragraph p : paragraphs) {
    p.parseText();
    p.setNote(this);
    p.setAuthenticationInfo(AuthenticationInfo.ANONYMOUS);
{code}
and there's no comment explaining why it is done.



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