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| author | Andrew Or <andrewor14@gmail.com> | 2014-04-22 14:27:49 -0700 |
|---|---|---|
| committer | Patrick Wendell <pwendell@gmail.com> | 2014-04-22 14:27:59 -0700 |
| commit | 54c96c2343dff6e6defe4e2ad576ab8a82d45140 (patch) | |
| tree | cca8cd7fa9e02b48f5a4d6adcc2bde6fbc38b8dd /yarn | |
| parent | 898fc3480c408a7e88fa95f27ca8f72d660cdff7 (diff) | |
| download | spark-54c96c2343dff6e6defe4e2ad576ab8a82d45140.tar.gz spark-54c96c2343dff6e6defe4e2ad576ab8a82d45140.tar.bz2 spark-54c96c2343dff6e6defe4e2ad576ab8a82d45140.zip | |
[Fix #204] Eliminate delay between binding and log checking
**Bug**: In the existing history server, there is a `spark.history.updateInterval` seconds delay before application logs show up on the UI.
**Cause**: This is because the following events happen in this order: (1) The background thread that checks for logs starts, but realizes the server has not yet bound and so waits for N seconds, (2) server binds, (3) N seconds later the background thread finds that the server has finally bound to a port, and so finally checks for application logs.
**Fix**: This PR forces the log checking thread to start immediately after binding. It also documents two relevant environment variables that are currently missing.
Author: Andrew Or <andrewor14@gmail.com>
Closes #441 from andrewor14/history-server-fix and squashes the following commits:
b2eb46e [Andrew Or] Document SPARK_PUBLIC_DNS and SPARK_HISTORY_OPTS for the history server
e8d1fbc [Andrew Or] Eliminate delay between binding and checking for logs
(cherry picked from commit 745e496c59cfece2fcd6120ecc366dcab07b293a)
Signed-off-by: Patrick Wendell <pwendell@gmail.com>
Diffstat (limited to 'yarn')
0 files changed, 0 insertions, 0 deletions