Common: Rewrite check_obsolete_replicas#145
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This is a complete rewrite that still maintains the exact same
functionality. Instead of one large ATLAS-specific PL/SQL script, this
implementation:
1. Uses the gateway layer to list the RSEs and to update the RSE usage
counters
2. Works on each RSE separately
3. Uses SQLAlchemy 2.0 syntax
4. Replaces the deprecated function-based `REPLICAS_TOMBSTONE_IDX`
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rdimaio
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Aug 6, 2024
| free=None, issuer='root', files=files, | ||
| session=session) | ||
| except Exception: | ||
| print(traceback.format_exc()) |
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should there be a session.rollback() here?
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More importantly, I’m missing a session.commit(), so many thanks for your comment.
But I’m not yet convinced what I’m doing here is a good idea. If we didn’t have a custom query, we wouldn’t try to tie the gateway calls to a particular session. Is there a benefit to ensuring either all of the RSE usage counters are updated or none at all? I’m not sure. My initial motivation was to be able to add a dry-run mode easily, but this may not be the best way to proceed.
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This is related to both #109 and #127. The functionality remains the same but it creates opportunities to augment it in the future (e.g. write the results to standard output or store them also in Prometheus).
Performance appears to be equivalent (or even better) compared to the original implementation. Once approved and merged (ATLAS is currently validating it in production), I will do the same for
check_expired_replicas.