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AWS ParallelCluster v3.16.0 source code.tar.gz 2026-08-07 195.8 kB
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README.md 2026-08-07 848 Bytes
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We're excited to announce the release of AWS ParallelCluster Node 3.16.0

This is associated with AWS ParallelCluster v3.16.0

ENHANCEMENTS

  • Mitigate the impact of transient IMDS failures during compute fleet status retrieval.

BUG FIXES

  • Fix clustermgtd failing to detect compute node bootstrap timeouts, which prevented the cluster from entering protected mode.
  • Fix an issue where compute nodes are replaced when launching a large number of nodes due to eventual consistency.
  • Fix a race condition where a fleet start was not enough to exit protected mode. This race condition is triggered when a fleet stop is issued on a fleet transitioning into protected mode while some of its nodes are powering up.
  • Fix an issue where static nodes in a maintenance reservation enter a terminate/relaunch loop when being replaced.
Source: README.md, updated 2026-08-07