JDK-8220657 : JFR.dump does not work when filename is set
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jfr
  • Affected Version: 11,12,13
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2019-03-14
  • Updated: 2020-10-13
  • Resolved: 2019-06-13
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JDK 11 JDK 13 JDK 14 Other
11.0.5Fixed 13 b25Fixed 14Fixed openjdk8u282Fixed
Description
The user might not get flight record via JFR.dump.


How to reproduce:

* Target process
  Start with -XX:StartFlightRecording=filename=test.jfr

* JFR.dump

  - Run with no argument
      It works correctly.

  - Run with `name=1`
      We can see the message "Dump failed. No data found in the specified interval." on the console, but the dump is completed to `test.jfr`.

  - Run with `name=1 filename=dump.jfr`
      It does not work.
Comments
The proposed patch does not compile: https://mail.openjdk.java.net/pipermail/jdk8u-dev/2020-August/012355.html Returning to the review stage with jdk8u-needs-review. Please replace this with jdk8u-fix-request again only once a working patch is reviewed.
06-08-2020
[~apetushkov] Next time please also mention the reviewer of the patch. In fact, only reviewed patches should get the jdk8u-fix-request label. There are many 8u Reviewers out there, 8u Maintainers less so. Thanks. For reference, the 8u RFR approval is here: http://mail.openjdk.java.net/pipermail/jdk8u-dev/2020-August/012333.html. Approving.
04-08-2020
Fix request for 8u on behalf of Ekaterina Vergizova (katya@azul.com): JFR issue, the patch applies cleanly, but the added test TestJcmdDumpWithFileName.java requires some adjustments to pass under 8u see https://mail.openjdk.java.net/pipermail/jdk8u-dev/2020-July/012312.html tier1 and relevant JFR jtreg's tests passed on Linux and Windows
31-07-2020
Should try to fix for JDK 13 (and backport to JDK 11 later). Work in progress
12-06-2019
Impact: High, loss of data Likelihood: Medium, reported by several users Workaround: Low, specify filename when doing dump ILW: HML -> P3
12-06-2019