tree 86b2aa6373e7515748723020adc28d870523955a
parent 4904a625c902391bbc681d0e4a68c7d057d6824a
author Matthias Sohn <matthias.sohn@sap.com> 1557357795 +0200
committer Matthias Sohn <matthias.sohn@sap.com> 1559664917 +0200

Wait opening new packfile until it can't be racy anymore

If
- pack.waitPreventRacyPack = true (default is false)
- packfile size > pack.minSizePreventRacyPack (default is 100 MB)
wait after a new packfile was written and before it is opened until it
cannot be racy anymore.

If a new packfile is accessed while it's still racy at least the pack's
index will be reread by ObjectDirectory.scanPacksImpl(). Hence it may
save resources to wait one tick of the file system timer to avoid this
reloading. On filesystems with a coarse timestamp resolution it may be
beneficial to skip this wait for small packfiles.

Bug: 546891
Change-Id: I0e8bf3d7677a025edd2e397dd2c9134ba59b1a18
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>