CODEWITHSUNDEEP
clearcaseibm-rational
Pulak Agrawal
Pulak Agrawal

Reputation: 2481

Clearcase UCM - Unable to read change set entry for activity

Events till now

We have a CC 7.1.2.2, multisite setup where we do deliveries between 2 sites. Now when resuming a delivery at the destination site, we get this error :

Unable to read change set entry for activity "<activity name>". Unable to 
convert diffs to elements. Unexpected error in deliver. Unable to perform merge. 
Unable to do integration.

Then running checkvob -ucm shows some broken hyperliniks which the SCM support team fixes for us. IBM tech note says this is a synch issue.

Now the actual problem:

This has started happening on a regular basis suddenly and we know its NOT a synch issue between VOB and PVOB as the packets are getting synched properly. What I am interested in finding out is whether this could occur due to a specific set of user actions like deleting checked out versions etc. The key point is its not a one off thing and impacts our deliveries everyday. We are not able to find any concrete triggering actions or root cause

Any ideas ?

Upvotes: 2

Views: 1888

Answers (2)

Pulak Agrawal
Pulak Agrawal

Reputation: 2481

Found out the issue; it was hidden synch issues indeed. What really was happening was that multisite synch was timing out for packets larger than 250 meg. This would create problems for bid inetersite deliveries where PVOB would synch over and VOBs would not. This was hidden as otherwise sync was happening properly.

Thanks VonC for the other inputs; I know you'd have pointed me to synch issues as a first measure had I not confirmed it wasn't the issue.

Upvotes: 2

VonC
VonC

Reputation: 1323553

This has been linked to a multi-site sync issue from a long time now (here an example in 2005), and was also associated with a bug in CC multi-site 7.0.

But if you are really sure multi-site sync is not the issue, then it could be linked to "lost+found" issue, where elements could have been:

  • deleted (rmelem by an admin -- I know regular users in your setup don't have rmver or rmelem rights -- in order to clean the lost+found directory automatically, maybe through a ClearCase scheduled job or some kind of trigger?)
  • not selected because the config spec of views involved by your deliver are setup to not select the lost+found directory

Upvotes: 2

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