"background merge hit exception" on close issue


since about an hour our Jira installation yields …

Error: java.lang.RuntimeException: java.io.IOException: background merge hit exception: _8tjz:C156612 _8tk0:c1 into _8tk1 [optimize] [mergeDocStores]

… when closing an issue. The workflow step itself works, the issue is closed afterwards and integrity checks are all ok. So, besides the warning/error nothing else serious seems(!) to happen but of course we are absolutely not feeling happy. According to the hosting provider disk space is rather full but not to the very last bit ... Any other action (as far as tried) seems to run smoothly, there seems to be no slowing down.

Any other hints?

Thanks in advance

2 answers

1 accepted

The "full but not to the last bit" seemed to be the problem. After cleaning up the attachment folder and freeing disk space, everything resumed normal. Larger disk space to be prepared.


0 vote

Hi phi,

Upon the error, it seem related to file corruption in JIRA instance. Can you try to perform the following workaround to force JIRA rebuild the file again:

  • Shutdown JIRA
  • Navigate to $JIRA_HOME\caches directory, and remove the content of the caches directory
  • Restart your instance
  • Perform reindexing Administration > Indexing

Hope it helps.


John Chin

Suggest an answer

Log in or Sign up to answer
How to earn badges on the Atlassian Community

How to earn badges on the Atlassian Community

Badges are a great way to show off community activity, whether you’re a newbie or a Champion.

Learn more
Community showcase
Published Monday in Jira Software

How large do you think Jira Software can grow?

Hi Atlassian Community! My name is Shana, and I’m on the Jira Software team. One of the many reasons this Community exists is to connect you to others on similar product journeys or with comparabl...

706 views 6 13
Read article

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you