tree e392a77b859e5655ecb880548ba9164e90fce844
parent 1df855bef2b2dbe330cafb0d10e0b4af813a311a
author Kousuke Saruta <sarutak@oss.nttdata.com> 1596950069 -0700
committer Dongjoon Hyun <dongjoon@apache.org> 1596950069 -0700

[SPARK-32462][WEBUI] Reset previous search text for datatable

### What changes were proposed in this pull request?

This PR proposes to change the behavior of DataTable for stage-page and executors-page not to save the previous search text.

### Why are the changes needed?

DataTable is used in stage-page and executors-page for pagination and filter tasks/executors by search text.
In the current implementation, search text is saved so if we visit stage-page for a job, the previous search text is filled in the textbox and the task table is filtered.
I'm sometimes surprised by this behavior as the stage-page lists no tasks because tasks are filtered by the previous search text.
I think, it's not useful.

### Does this PR introduce _any_ user-facing change?

Yes. Search text is no longer saved.

### How was this patch tested?

New testcase with the following command.
```
$ build/sbt -Dguava.version=27.0-jre -Dtest.default.exclude.tags= -Dspark.test.webdriver.chrome.driver=/path/to/chromedriver "testOnly org.apache.spark.ui.ChromeUISeleniumSuite -- -z Search"
```

Closes #29265 from sarutak/fix-search-box.

Authored-by: Kousuke Saruta <sarutak@oss.nttdata.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>