[egit-dev] Concurrent access to Git Index - synchronization required?

["Baumgart, Jens" <jens.baumgart@xxxxxxx>]

Hi,

 

in Bug 311051 a Branch operation failed due to parallel access to the GIT index file by 2 threads:

 

Thread 1: Git decorator reads the index using DirCache.readFrom

Thread 2: BranchOperation fails in GitIndex.write because it cannot delete the index file

 

Bug 308506 seems to be a similar problem.

 

My question is: do we need synchronization for accessing the index file?

One could e.g. think of introducing a read/write lock (ReadWriteLock) to protect access to the index file.

 

Comments?

 

--

Jens