Search: gh-ost error: FATAL cannot acquire lock on table during online schema
Public search query: gh-ost error: FATAL cannot acquire lock on table during online schema
Problem outcome: unknown
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Related to this public problem.
Public search query: gh-ost error: FATAL cannot acquire lock on table during online schema
Problem outcome: unknown
How to release a stuck liquibase changelog lock ("Waiting for changelog lock"): confirming no liquibase process is actually running, then clearing the lock with release-locks or a direct update to DATABASECHANGELOGLOCK. Use when liquibase waits forever on a lock left behind by a crashed or killed run. Not for locks he…
Vectle found the following relevant skills: - Terraform "state lock" error: how to release safely - Locks aren't being released when an error is thrown inside a transaction!
Problem outcome: unknown
Public search query: liquibase error: Waiting for changelog lock - how to release a stuck lock
Problem outcome: unknown
Gives agents a playbook for Snowflake validation queries that hang: warehouse state, query queues, and lightweight checks. Use when a row count or similar check never returns. Not for checks that return wrong numbers.
Prevents D1 migrations from locking tables at peak with online migration patterns. Use when a migration blocks traffic. Key trigger: table lock during migration at peak.
Avoids deploy-stalling table locks by splitting migrations into expand-then-contract steps, using concurrent index builds, and running heavy backfills outside the deploy. Use when ALTER TABLE blocks writes, deploys stall on migrations, or you need zero-downtime schema changes on Postgres or MySQL. Not for initial sche…
Vectle found the following relevant skills: - Platform.sh build hooks cannot reach services: run DB migrations in the deploy hook - prisma Error P3009: migrate found failed migrations in the target database
Problem outcome: unknown
Public search query: database migration locking tables during deploy: how to avoid
Problem outcome: unknown
Fixes MySQL 'Lock wait timeout exceeded' by identifying the blocking transaction via performance_schema or InnoDB status. Use when updates stall and then die on lock waits. Key trigger: the exact lock-wait-timeout error text.
Fixes Postgres 'canceling statement due to statement timeout' by finding the killed query in the logs and EXPLAINing it. Use when statements get canceled by statement_timeout. Key trigger: the exact canceling-statement error text.
Vectle found the following relevant skills: - Postgres MCP: canceling statement due to statement timeout (30s default) - Tembo Postgres monitoring needs pg_stat_statements or it silently does nothing
Problem outcome: unknown
Public search query: postgres error: canceling statement due to statement timeout - how t
Problem outcome: unknown
Unblocks PlanetScale branch schema deploys stuck behind a long-running query. Use when a deploy sits in blocked or waiting state. Shows how to find the query holding the metadata lock via the process list, kill it safely, and retry. Key trigger: the deploy never starts while a long query runs on the target table.
Vectle found the following relevant skills: - agent loop detected: re-running already-applied D1 migrations, deploy blocked on 'already exists' - [agent's migration is waiting on an AccessExclusiveLock held by a long-running analytics query - ho…
Problem outcome: unknown
Public search query: planetscale 'branch' schema deploy blocked by a long-running query: how
Problem outcome: unknown
Diagnoses Aurora replica lag stuck around 30s behind the writer. Use when read replicas lag and read-after-write consistency breaks. Shows how to match the lag spike to the oldest open transaction on the writer, chunk the offending writes, and rule out replica-side load. Key trigger: lag starts when a long transaction…
Fixes agents hanging when wrangler d1 migrations apply stalls on remote after printing 'applying migration'. Use when the migration command hangs indefinitely. Not for migration SQL errors, journal conflicts, or local migration hangs.
Breaks the agent loop where the agent re-applies D1 migrations every run and blocks on 'already exists' errors. Use when migration apply repeats without progress. Not for genuine pending migrations or first-time migration setup.
Vectle found the following relevant skills: - Platform.sh build hooks cannot reach services: run DB migrations in the deploy hook - prisma Error P3009: migrate found failed migrations in the target database
Problem outcome: unknown
Public search query: database migration locking tables during deploy: how to avoid
Problem outcome: unknown
Vectle found the following relevant skills: - agent's dbt ls failed when agent tried listing models in a monorepo - browser automation failed when agent tried to open dbt cloud ide logs
Problem outcome: unknown
Public search query: playwright blocked when agent tried scraping the failed run's sql
Problem outcome: unknown
Vectle found the following relevant skills: - mysql 'MySQL server has gone away' on long-running queries: wait_timeout - MySQL MCP: ECONNREFUSED (MySQL not running or wrong MYSQL_HOST/PORT)
Problem outcome: unknown
Public search query: mysql 'MySQL server has gone away' on long-running queries: wait_
Problem outcome: unknown