Delta Lake

Delta Lake Table Monitoring

Analyze transaction logs, track OPTIMIZE and VACUUM operations, monitor table statistics, and catch data quality issues before they reach your consumers.

The hidden cost of unmanaged Delta tables

Delta Lake's transaction log is its superpower , but without OPTIMIZE and VACUUM on a schedule, you accumulate small files and outdated snapshots that slow reads and inflate S3 storage costs. Most teams only discover this when queries start timing out.

Transaction Log Analysis

Parse every Delta commit to understand write patterns, operation types, and how table statistics evolve over time.

OPTIMIZE Job Tracking

See when OPTIMIZE last ran, how many files it compacted, and whether your tables are approaching a state that degrades read performance.

VACUUM Schedule Monitoring

Track retention period and VACUUM run history. Alert when outdated snapshots exceed your configured retention threshold.

Table Version History

Browse the full history of table versions, understand time travel availability, and see which operations caused the most metadata churn.

Small File Detection

Surface tables with small file problems early , before they compound into query timeouts or excessive S3 LIST operations.

Partition Health

Monitor partition-level statistics, skew, and growth trends across your Delta Lake tables.

How to connect Delta Lake

1

Deploy read-only IAM role

CloudFormation grants scoped read access to the S3 paths where your Delta tables reside (_delta_log prefixes).

2

Register table locations

Provide S3 paths for your Delta tables. We auto-discover tables within registered prefixes.

3

Configure maintenance thresholds

Set file count thresholds and VACUUM retention policies that match your workload's expectations.

4

Dashboard goes live within 24h

Transaction log history, table version timeline, and health indicators are available immediately.

Required IAM permissions

s3:GetObject (_delta_log/* prefix only)
s3:ListBucket (table prefix only)
glue:GetTable (if using Glue catalog)

Access is scoped to _delta_log paths only. No access to Parquet data files.

See exactly what's happening in your S3 data layer

Works with your existing AWS setup. Read-only access. No agents. No data exposure.

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