elasticsearch

We should ignore java.io.tmpdir and override it with ES_TMPDIR. I think that variable should be taken into account from the beginning of startup scripts (including JavaVersionChecker) and the value should be applied as java option to all java processes.

Java processes started before ES_JAVA_OPTS are parsed (JavaVersionChecker, TempDirectory, JvmOptionParser) can also create temporary files in /

This is kind of a follow up to #32677 and the PR #34762.

In #34762 we improved the test data source implementation by checking the body of the response from Tempo. The Tempo team is not comfortable making the body of a 404 response part of our stable API, so instead we are currently adding a separate endpoint specifically for testing: /api/echo (grafana/tempo#714).

Above the fields list and in the layer pane, change Change index pattern to Index pattern.

Above fields list:

In layer pane:
![Screen Shot 2021-07-15 at 3 23 11 PM](https://user-images.githubusercontent.com/38990715/125852638-d794c03c-86b1-4

As suggested in the ESM guidelines of Node.js it would be good to explicit the type of the module.

{
+  "type": "commonjs",
}