mr-karan/logchef v2.1.0

v2.1.0: fast at any width

on GitHub

Logchef 2.1 makes the Explorer usable on sources with hundreds or thousands of fields, adds eleven interface languages, and ships a Helm chart. There are no database migrations; read the upgrade notes for a few behavior changes.

Highlights

Fast on wide schemas. The results table, Fields sidebar, and Group by picker no longer render every field in the schema. On wide VictoriaLogs sources:

Medians of five runs on one machine. Method and fixtures: frontend/docs/table-performance.md.

Eleven languages. English, Chinese (Simplified and Traditional), Spanish, French, German, Brazilian Portuguese, Japanese, Korean, Hindi, and Italian, under Settings → Preferences. The choice is saved to your account. Non-English translations are first drafts; corrections are welcome.

Helm chart. deployment/helm deploys Logchef with Dex and ClickHouse, with optional Ingress or Gateway API routes.

Added

• ai.reasoning_effort for reasoning-capable Bedrock models (none to max). AI requests can now run for up to 90 seconds.
• Show more in the Fields sidebar, which now lists 100 fields at a time. Search covers all fields.
• Searchable Group by picker.

Changed

• The table renders only the columns in view, and cell actions appear on hover or focus instead of on every cell (#104, #107).
• VictoriaLogs sources show six columns by default. New fields from a query are no longer added as visible columns.
• "Rows read" and "bytes read" report what ClickHouse scanned, not the number of rows returned.
• LogchefQL results include their parsed conditions, removing a second translate request per query.
• Cancelled and timed-out queries return 408 instead of 500.
• Histograms over 5,000 buckets or 16 MiB are rejected with a hint to widen the interval, instead of returning partial results.

Fixed

• Large integers and precise decimals are no longer rounded in the browser.
• Timestamps keep nanosecond precision in sorting, surrounding logs, and field values.
• LogchefQL keeps number literals exact, compiles = null and != null to null checks, and rejects malformed queries instead of dropping conditions.
• ClickHouse JSON, Dynamic, Variant, map, and byte-array values render the same in buffered and streamed results.
• Enum fields show their values, including empty ones, in the sidebar.
• logchef_query_total no longer counts each query twice.
• VictoriaLogs alerts read the metric value instead of a label (#105).
• Live tail keeps up with bursts of rows that share a timestamp.
• Saved queries: "Save as new" always creates a new query, double-clicking Save no longer creates duplicates, and template variables are escaped correctly.
• Log rows open their detail panel on click again.
• Short column names such as level are no longer truncated to one letter.
• The ClickHouse source form's auth toggle works again.
• Sidebar fields you collapse stay collapsed while others load.

Upgrade notes

• No database migrations.
• VictoriaLogs column visibility resets once. Visibility saved by older versions is discarded and replaced by the six-column default. Column order and widths are kept. ClickHouse sources are unaffected.
• Stricter LogchefQL. Quote numbers compared with string fields (status_text="500"). >, <, and ~ with null are errors; use = null or != null. Update saved queries and alerts that rely on the old behavior.
• SQL histograms using GROUP BY, DISTINCT, or set operations must select the timestamp column explicitly.
• Histogram concurrency. query.max_concurrent_per_user and query.max_concurrent_global now apply to previews and histograms separately. Histograms can return 429 under load.
• Metrics. logchef_query_total roughly halves because of the double-count fix. Adjust dashboards and alerts.
• Helm. The chart defaults are for evaluation. For production, pin logchef.image.tag: v2.1.0 and replace the default OIDC client secret and Dex demo users.
• Building from source requires Go 1.26.

Thanks

@AndreyCreativecode for reporting and profiling the wide-schema slowdown (#106) and contributing the sidebar and Group by fixes in #107.

Install

docker pull ghcr.io/mr-karan/logchef:v2.1.0

Binaries for Linux and macOS are attached below. Full changelog: https://logchef.app/changelog/#v2.1.0 · Diff: v2.0.2...v2.1.0