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https://issues.apache.org/jira/browse/KNOX-3252?focusedWorklogId=1005111&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-1005111
]
ASF GitHub Bot logged work on KNOX-3252:
----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Feb/26 15:37
Start Date: 13/Feb/26 15:37
Worklog Time Spent: 10m
Work Description: hanicz commented on PR #1146:
URL: https://github.com/apache/knox/pull/1146#issuecomment-3897869461
`target knox: failed to solve: image "docker.io/apache/knox-dev:local":
already exists`
Docker tests are failing with the above. Its unrelated to the changes
Issue Time Tracking
-------------------
Worklog Id: (was: 1005111)
Time Spent: 0.5h (was: 20m)
> Intermittent Postgres type already exists exception
> ---------------------------------------------------
>
> Key: KNOX-3252
> URL: https://issues.apache.org/jira/browse/KNOX-3252
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 2.1.0
> Reporter: Tamás Hanicz
> Assignee: Tamás Hanicz
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> The issue is a race condition during table creation when multiple Knox
> instances are starting up simultaneously. At the initial "isTableExists"
> check the tables are not yet created. So Knox-instance-0 and Knox-instance-1
> will both go ahead with the creation. Postgres will create a record in
> pg_class and pg_type as well. However the process that gets there later will
> get the exception due to the record that was created by the other process in
> pg_type.
> I was able to reproduce it locally. I started up a local Knox instance and I
> had a Postgres db running on my docker desktop. I added a breakpoint to the
> table creation and created a new type called "knox_tokens" manually.
> {code:java}
> CREATE TYPE knox_tokens AS ENUM ('active', 'expired', 'revoked');{code}
> After this proceeding with the Knox process I got the exception. Solution is
> catching this exception validating the SQL state and skip table creation
> entirely in that Knox instance.
> {code:java}
> 2026-02-10 21:19:44,825 ERROR knox.gateway
> (TokenStateServiceFactory.java:createService(63)) - Error while
> initiatalizing
> org.apache.knox.gateway.services.token.impl.JDBCTokenStateService: Error
> while initiating JDBCTokenStateService: org.postgresql.util.PSQLException:
> ERROR: type "knox_tokens" already exists{code}
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