"duplicate key value violates unique constraint" ERROR

Dear all,

I am sorry to have another post.

I have been following a problem which has been growing fast on our system.

At the beginning I thought it was related to load on PG server, then I thought it was load on the switch/network, now I don’t know.

We seem to get loads of Exception errors and when I look at the Postgres Log there are loads of “duplicate key value violates unique constraint”

I have researched on the Internet and some posts say: Reindex, some say bug in JIRA.

Some say: Your primary key index isn't in sync.

Have you guys suffered from this problem before, or have seen it anywhere?

From 30^th of April to today I got 1400 errors.

What do you guys think might cause this behavior?

I also think it is causing the system to slow down a bit, do you think that might be possible?

Very much appreciate any help, insight, opinion or anything you could think.

Thank you very much

Best regards

Renato