NullPointerException at credential refresh

[WhiteJocc]

Logstash suddenly stopped shipping logs to AWS ES (Cognito protected) after NullPointerException around credential refresh by this plugin (according to the stacktrace). Stack traces are attached to the issue.

We observed the issue when we first set multiple pipelines (see below). Everything worked fine and after few days or a day or hours (kind of unpredictable) the logstash due to the NPE stopped shipping logs to AWS ES. We don't pass aws credentials to logstash plugin directly, we rely on "Instance profile credentials".

Multi pipeline setup:

• pipeline.id: logs
  path.config: "/usr/share/logstash/pipeline/logs.conf"
• pipeline.id: metrics
  path.config: "/usr/share/logstash/pipeline/metrics.conf"

stacktrace-2.log
stacktrace-1.log

[WhiteJocc]

Guys, any news on this? What kind of help do you need?

[AustinTag]

Hi. Could you please provide which version of Logstash and the plugin you are using?

[WhiteJocc]

logstash:6.3.2
amazon_es:6.4.2

[WhiteJocc]

Any news on this thread, guys?