opensearch-project/OpenSearch

[BUG] Bootstrapping nodes fails sometimes: give clear errors

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#967 opened on Jul 15, 2021

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Description

Describe the bug I'm trying to build a cluster on kubernetes. Yesterday it worked like a charm, cluster spun up with 3 masters and 2 data nodes. Redeployed the cluster and it fails:

image

Bootstrap fails, but on what is unclear to me? Found some guides, but I seem to be ok on the values presented there (except for the memlock which is a problem on k8s, can't be set runtime: circumvented that by bootstrap.memory_lock = false). Apparently checks are done, but which specific check fails is unclear to me.

Expected behavior Give a good reason why it doesn't bootstrap

Plugins default docker image - first boot.

Screenshots If applicable, add screenshots to help explain your problem.

Host/Environment (please complete the following information): Kubernetes cluster, based on standard opensearch 1.0.0 docker container

Additional context Add any other context about the problem here.

Contributor guide

Research direction
Trace the bootstrap validation logic in OpenSearch to identify which specific check fails and ensure the error message includes the name of the failing check.
Tech stack
javadockerkubernetes
Domain
backendinfrastructuredevops
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JavaGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50