geo-rep: Handling Rsync/Tar errors efficiently

Geo-rep processes Changelogs in Batch, if one file in batch
fails with rsync error that Changelog file is reprocessed multiple times.
After MAX_RETRY, it logs all the GFIDs from that batch as Skipped.

This patch addresses following issues,
1. When Rsync/Tar fails do not parse Changelog again for retry
2. When Rsync/Tar fails do not replay Entry operations, only retry
   rsync/tar for those GFIDs
3. Log Error in Rsync/Tar only in the last Retry
4. Do not log Skipped GFIDs since Rsync/Tar errors are logged for
   only failed files.
5. Changed Entry failures as Error instead of Warning

BUG: 1287723
Change-Id: Ie134ce2572693056ab9b9008cd8aa5b5d87f7975
Signed-off-by: Aravinda VK <avishwan@redhat.com>
Reviewed-on: http://review.gluster.org/12856
Reviewed-by: Kotresh HR <khiremat@redhat.com>
Reviewed-by: Saravanakumar Arumugam <sarumuga@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Venky Shankar <vshankar@redhat.com>

0 files changed, 0 insertions, 0 deletions