Questions

1. A user searched for ERROR log messages in the hands-on namespace for the last 30 days using the search criteria shown in the following screenshot, but none were found. Why?

2. A user has found a log record of interest. How can the user find related log records from this and other microservices, for example, that come from processing an external API request?

3. A user has found a log record that seems to indicate the root cause of a problem that was reported by an end user. How can the user find the stack trace that shows wherein the source code the error occurred?

4. Why doesn't the following Fluentd configuration element work?

<match kubernetes.**hands-on**>
  @type rewrite_tag_filter
  <rule>
    key log
    pattern ^(.*)$
    tag spring-boot.${tag}
  </rule>
</match>

5. How can you determine whether Elasticsearch is up and running?

6. Suddenly...