Posts - Page 2
All the articles I've posted, page 2.
- 31 MIN READ•Sep 10, 2026
Running Apache Polaris in Production
Apache Polaris past the quickstart: persistence backends, realm bootstrap, replica token signing, upgrades, backups, and which failures take the lakehouse offline.
Apache PolarisApache Icebergcatalogs - 31 MIN READ•Sep 10, 2026
What the 2026 Consolidation Means for Open Formats
Tabular, Dremio, and a wave of data platform acquisitions: what changes for teams building on open formats and which guarantees survive a change of ownership.
open formatsacquisitionsdata platform consolidation - 31 MIN READ•Sep 10, 2026
Context Engineering for Data Agents
Why text-to-SQL accuracy collapses on enterprise schemas, the five kinds of context an agent needs, where each one hides, and how to make the semantics legible.
context engineeringsemantic layertext-to-SQL - 31 MIN READ•Sep 10, 2026
Guardrails for AI on Company Data
The control surfaces that actually contain damage once an agent is fooled: identity, permissions, audit trails, and prompt injection at the query layer.
AI governanceprompt injectionaccess control - 31 MIN READ•Sep 10, 2026
Migrating Into Iceberg Without Moving Data
add_files, snapshot, and migrate compared: the three in-place paths into Iceberg, the reconciliation each requires, the layout traps, and the rollback story.
Apache Icebergmigrationmetadata - 31 MIN READ•Sep 10, 2026
What Iceberg Table Maintenance Actually Costs
A cost model for compaction, snapshot expiry, orphan cleanup, and manifest rewriting: what each operation spends, on which meter, and how to set a schedule.
Apache Icebergtable maintenancecompaction - 30 MIN READ•Sep 10, 2026
Running an Iceberg Lakehouse on Kubernetes
Catalog, maintenance, and compaction as Kubernetes workloads: scheduling classes, job structure, credential flow, and the failures that come from the interaction.
KubernetesApache IcebergApache Polaris - 31 MIN READ•Sep 10, 2026
Partition Statistics Files in Apache Iceberg
The underused Iceberg metadata for planning: what the partition statistics file holds, what the spec guarantees, how to write one, and when it earns its slot.
Apache Icebergquery planningmetadata - 30 MIN READ•Sep 10, 2026
What to Assert When You Test an Iceberg Pipeline
Fixtures, in-memory catalogs, and golden metadata: the assertions that catch wrong rows, unsafe reruns, schema drift, and concurrent-write corruption in CI.
Apache IcebergtestingCI - 31 MIN READ•Sep 10, 2026
The 2026 Iceberg REST Catalog Compatibility Report
A repeatable test for what an Iceberg REST catalog actually serves, a scoring scheme that separates design from breakage, and the 2026 evidence across seven catalogs.
Iceberg REST catalogcatalog compatibilityApache Polaris - 31 MIN READ•Sep 10, 2026
Serving Iceberg Tables From Two Regions
Three multi-region topologies that work and one that mostly does not, what an Iceberg commit costs across regions, and where the catalog has to live.
Apache Icebergmulti-regionreplication - 31 MIN READ•Sep 10, 2026
How Iceberg Catalogs Hand Engines Storage Access
Credential vending end to end: the wire protocol, scoped access on each cloud, remote signing, credential lifetime on long jobs, and failures that look like bugs.
credential vendingApache IcebergApache Polaris