Logs flooded with Caused by: java.sql.SQLException: ORA-01408: such column list already indexed

[Jason Liwag]

Upgraded our Confluence application from 6.4.1 to 6.9.0 including add-ons. Noticed lots of exception in the logs 

 Caused by: java.sql.SQLException: ORA-01408: such column list already indexed

Ex.

2018-06-18 14:36:49,365 INFO [UpmAsynchronousTaskManager:thread-2] [atlassian.plugin.manager.DefaultPluginManager] updatePlugin Updating plugin 'com.atlassian.troubleshooting.plugin-confluence' from version '1.8.9' to version '1.11.0'

2018-06-18 14:36:49,366 INFO [UpmAsynchronousTaskManager:thread-2] [atlassian.plugin.manager.DefaultPluginManager] broadcastPluginDisabling Disabling com.atlassian.troubleshooting.plugin-confluence
2018-06-18 14:36:51,792 ERROR [active-objects-init-system tenant-0] [net.java.ao.sql] handleUpdateError Exception executing SQL update <CREATE INDEX "index_ao_4789dd_tas639956211" ON "AO_4789DD_TASK_MONITOR"("TASK_ID")>
-- url: /confluence/rest/plugins/1.0/ | referer: https://atlassian-test/confluence/plugins/servlet/upm | traceId: db63a1d9a6735cb8 | userName: caxxxx
java.sql.SQLException: ORA-01408: such column list already indexed

at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:450)

Root Cause:  Using plugin  Atlassian Troubleshooting and Support Tools v1.11.0. 

Workaround: Use Atlassian Troubleshooting and Support Tools v1.10.3 plugin instead.

[Jason Liwag]

Fixed version has been released for this plugin v1.11.1

[Jason Liwag]

I already tried that approach, confirmed/verified that index has been deleted before starting server and didn't help. Thank you!

[Mesut Yilmazyildirim]

Just a suggestion, not sure if that will solve the problem but I would take below actions;

(Always back up your data before performing any modification to the database. If possible, try your modifications on a test server.)

1. Stop Confluence.

2. Drop the index in your database:

   DROP INDEX index_ao_4789dd_tas639956211

3. Start Confluence. Upon restarting, Confluence will re-build the missing index.