mysql: ERROR 1205 (HY000): Lock wait timeout exceeded
Fixes MySQL 1205 lock-wait timeouts by finding the blocking transaction, killing or fixing it, and shortening transaction scope with proper indexes. Not for deadlocks.
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Related to this public problem.
Fixes MySQL 1205 lock-wait timeouts by finding the blocking transaction, killing or fixing it, and shortening transaction scope with proper indexes. Not for deadlocks.
Vectle found the following relevant skills: - mysql error: Lock wait timeout exceeded - try restarting transaction - how to find the blocker - jest "thrown: Exceeded timeout" with no stack trace in CI logs: how to get the real error
Problem outcome: unknown
Public search query: mysql: ERROR 1205 (HY000): Lock wait timeout exceeded
Problem outcome: unknown
Fixes warehouse deadlocks during dbt runs for analytics engineers and repair agents. Use when the database reports a deadlock while dbt models build. Not for statement timeouts or lock waits that eventually clear.
Vectle found the following relevant skills: - Database Error: permission denied for table on dbt run - psycopg2 error DeadlockDetected: deadlock detected during concurrent migration
Problem outcome: unknown
Public search query: Database Error: deadlock detected during dbt run
Problem outcome: unknown
Response playbook for an ALTER TABLE that ran 6 hours blocking deploys because no statement_timeout was set: stopping it safely, setting timeouts, and using online schema-change tools instead. Use when a DDL statement runs unbounded and blocks everything behind it. Not for slow DML or stuck queries.
Vectle found the following relevant skills: - migration agent ran alembic upgrade head and it timed out at 10 minutes - the migration was blocked on a table lock... - [agent failed to parse wrangler d1 execute table output: column splitter broke…
Problem outcome: unknown
Public search query: agent didnt set a statement_timeout and the ALTER TABLE ran for 6 ho
Problem outcome: unknown
How to fix a deploy marked failed because the health check queried a table the migration had locked: making health checks lock-aware and migration-safe. Use when health checks fail spuriously during migrations. Not for health checks failing because the app is genuinely broken.
Vectle found the following relevant skills: - agent d1 migration locked the table during peak traffic - agent's suggested index fixed the SELECT but the migration locked the table for 40 minutes during the ALTER
Problem outcome: unknown
Public search query: agent's health check queried a table the migration had locked and
Problem outcome: unknown
Recovery and prevention for an agent that assumed DDL was transactional on mysql: the half-applied migration cannot be rolled back because mysql commits DDL implicitly. Use when a mysql migration failed midway and left a partial schema. Not for postgres, where transactional DDL usually allows rollback.
How to retry a cockroachdb schema change that failed due to concurrent DML: understanding why the declarative schema changer aborts, retrying with backoff, and reducing contention. Use when a DDL statement fails because writes raced it. Not for schema changes that fail on syntax or validation.
Vectle found the following relevant skills: - agent failed to apply its own field mapping: schema changed mid-run - agent failed when gitleaks changed its report schema - …
Problem outcome: unknown
Public search query: cockroachdb error: schema change failed due to concurrent DML - ho
Problem outcome: unknown
How to safely retry a failed vitess online DDL migration cutover: checking the migration status, diagnosing why the cutover failed, and retrying or completing it explicitly. Use when an online DDL migration stalls or fails at cutover. Not for ordinary DDL errors in the migration SQL itself.
Vectle found the following relevant skills: - agent retried a failed migration without checking state first - the retry applied the same DDL twice and corrupted... - [gh-ost error: FATAL cannot acquire lock on table during online schema migratio…
Problem outcome: unknown
Public search query: vitess error: online DDL migration cutover failed - how to retry safely
Problem outcome: unknown
How to specify the DSN for pt-online-schema-change's "Cannot connect to MySQL" error: the DSN part syntax, authentication options, and a working command template. Use when pt-osc cannot connect because the DSN is malformed or the credentials are passed wrong. Not for connection failures with a correct DSN (check netwo…
Vectle found the following relevant skills: - error during connect: open //./pipe/dockerDesktopLinuxEngine: The system cannot find the file specified - gh-ost error: FATAL cannot acquire lock on table during online schema migration
Problem outcome: unknown
Public search query: pt-online-schema-change error: Cannot connect to MySQL - how to speci
Problem outcome: unknown
How to fix gh-ost's "FATAL cannot acquire lock on table" during an online schema migration: finding the blocking workload, retrying the cutover in a quiet window, and tuning the lock settings. Use when gh-ost fails at the cutover step because it cannot get the brief table lock it needs. Not for failures during the row…
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