From 0d744dbae27a3394bc449bf4489957e6f86f4891 Mon Sep 17 00:00:00 2001 From: Kotresh HR Date: Mon, 7 May 2018 01:23:46 -0400 Subject: geo-rep: Fix upgrade issue Cause and Analysis: The last synced changelog for entry operations is marked in current version to avoid re-processing of already processed entry operations in a batch during crash/restart of geo-rep. This was not present in previous versoins. The marker is maintained in the dictionary with the key 'last_synced_entry' and dictionary is persisted into status file. So upgrading to current version in which the marker is present was failing with KeyError. Solution: Load the dictionary with default keys first which contains all the keys including latest ones and then load the values from status file instead of doing otherwise. Backport of > patch: https://review.gluster.org/19969/ > Change-Id: Ic654e6f9a3c97f616761f1362f890352a2186fb4 > Signed-off-by: Kotresh HR (cherry picked from commit 23c1385b5f6f6103e820d15ecfe1df31940fdb45) fixes: bz#1577862 Change-Id: Ic654e6f9a3c97f616761f1362f890352a2186fb4 Signed-off-by: Kotresh HR --- geo-replication/syncdaemon/gsyncdstatus.py | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/geo-replication/syncdaemon/gsyncdstatus.py b/geo-replication/syncdaemon/gsyncdstatus.py index 38ca92c73a9..909c6694bd8 100644 --- a/geo-replication/syncdaemon/gsyncdstatus.py +++ b/geo-replication/syncdaemon/gsyncdstatus.py @@ -152,11 +152,12 @@ class GeorepStatus(object): **kwargs) def _update(self, mergerfunc): + data = self.default_values with LockedOpen(self.filename, 'r+') as f: try: - data = json.load(f) + data.update(json.load(f)) except ValueError: - data = self.default_values + pass data = mergerfunc(data) # If Data is not changed by merger func -- cgit