Application Stuck at “Waiting for changelog lock”

Title

The application may fail to start and remain stuck with the message “Waiting for changelog lock” in the logs. This occurs when the Liquibase database lock used for schema updates is not released, usually due to a sudden shutdown (such as a power outage or an abrupt system restart), an interrupted startup, upgrade, or concurrent application initialization.

23-Feb-2026 09:38:18.839 INFO [main] liquibase.lockservice.null Waiting for changelog lock....
23-Feb-2026 09:38:28.855 INFO [main] liquibase.lockservice.null Waiting for changelog lock....
23-Feb-2026 09:38:38.870 INFO [main] liquibase.lockservice.null Waiting for changelog lock....
23-Feb-2026 09:38:48.870 INFO [main] liquibase.lockservice.null Waiting for changelog lock....
23-Feb-2026 09:38:58.886 INFO [main] liquibase.lockservice.null Waiting for changelog lock....

Solution

Follow the steps below to resolve the issue.

Shut down Tomcat.
Connect to the database and run the following query:
```
SELECT * FROM DATABASECHANGELOGLOCK;
```
If you see:

LOCKED = 1
LOCKGRANTED has a timestamp
LOCKEDBY shows a hostname/IP

Then the lock is stale and must be cleared.
Before making changes to the database, take a database backup.

Run the following query to release the lock:

UPDATE DATABASECHANGELOGLOCK SET LOCKED = 0, LOCKGRANTED = NULL, LOCKEDBY = NULL WHERE ID = 1;

Restart the application.

Outcome

The application starts successfully after the Liquibase lock is cleared, restoring normal application access.

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Support Hub

Product

Code Insight

Version

7.x

Related Products

Code Insight

Deployment type

On-premises

Visibility

Guest

URL Name

Application-Stuck-at-Waiting-for-changelog-lock

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Case id: 00001065