Siyao Meng created HDDS-15760:
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Summary: Handle large or invalid OM snapshot local data YAMLs
Key: HDDS-15760
URL: https://issues.apache.org/jira/browse/HDDS-15760
Project: Apache Ozone
Issue Type: Improvement
Reporter: Siyao Meng
Assignee: Siyao Meng
OM snapshot local data YAML stores SST metadata used by snapshot defrag and
snapshot diff. For snapshots with many small SST files, this YAML can grow
beyond SnakeYAML's default 3 MiB code-point limit. When that happens, loading
the YAML can fail during OM startup or snapshotLocalData initialization.
Goal: A bad local YAML should not make OM startup fail.
The YAML is local optimization metadata for snapshot SST/version tracking, not
the authoritative OM namespace state. If one snapshot's local metadata is
unreadable or inconsistent, OM should continue loading valid snapshot metadata
and leave the affected snapshot's defrag/diff path unavailable until the YAML
is fixed.
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