Wait till datanode becomes available during startup #17758
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Similarly as with elastic/opensearch, graylog server now waits for an available datanode. Number of attempts and their delay is configurable, reusing
elasticsearch_version_probe_attempts
andelasticsearch_version_probe_delay
, which will be most likely renamed in 6.0.Motivation and Context
Without the waiting logic, users need to start datanode first and then graylog server, otherwise the server immediately crashes with exception.
How Has This Been Tested?
Existing set of unit tests, manually tested starts
Types of changes
Checklist: