Geo-replication not working due to changelog file corruption

Issue

• Geo-replication not working.
• Geo-rep status shows History Crawl but last_synced shows as dated months ago.

# cat gluster_volume_geo-replication_testvol_status

MASTER NODE    MASTER VOL    MASTER BRICK      SLAVE USER    SLAVE   SLAVE NODE                    STATUS       CRAWL STATUS       LAST_SYNCED                  
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
master01   testvol        /bricks/brick1    user1    ssh://user1@slave01::slavevol    slave01       Active     History Crawl    2018-11-03 01:04:20          

master01   testvol       /bricks/brick1    user1     ssh://user1@slave01::slavevol    slave01       Passive    N/A        N/A                          

master01   testvol      /bricks/brick1     user1     ssh://user1@slave01::slavevol    slave01       Passive    N/A        N/A