Geo-Replication Changelog Error - is a directory

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Hello,

I'm having some issues with successfully establishing a geo-repolication
session between a 7-server distribute cluster as the primary volume, and
a 2 server distribute cluster as the secondary volume. Both are running
the same version of gluster on CentOS 7: glusterfs-5.3-2.el7.x86_64.

I was able to setup the replication keys, user, groups, etc and
establish the session, but it goes faulty quickly after starting.

The error from the gsyncd.log is:

Changelog register failed error=[Errno 21] Is a directory

We made an attempt about 2 years ago to configure geo-replication but
abandoned it, now with a new cluster I wanted to get it setup, but it
looks like changelogs have been accumulating since then:

[root@gluster07 .glusterfs]# ls -lh changelogs > /var/tmp/changelogs.txt
[root@gluster07 ~]# head /var/tmp/changelogs.txt
total 11G
-rw-r--r--. 1 root root  130 Jun 27 13:48 CHANGELOG
-rw-r--r--. 1 root root 2.6K Jun 19  2017 CHANGELOG.1497891971
-rw-r--r--. 1 root root  470 Jun 19  2017 CHANGELOG.1497892055
-rw-r--r--. 1 root root  186 Jun 19  2017 CHANGELOG.1497892195
-rw-r--r--. 1 root root  458 Jun 19  2017 CHANGELOG.1497892308
-rw-r--r--. 1 root root  188 Jun 19  2017 CHANGELOG.1497892491
-rw-r--r--. 1 root root  862 Jun 19  2017 CHANGELOG.1497892828
-rw-r--r--. 1 root root  11K Jun 19  2017 CHANGELOG.1497892927
-rw-r--r--. 1 root root 4.4K Jun 19  2017 CHANGELOG.1497892941
[root@gluster07 ~]# tail /var/tmp/changelogs.txt
-rw-r--r--. 1 root root  130 Jun 27 13:47 CHANGELOG.1561668463
-rw-r--r--. 1 root root  130 Jun 27 13:47 CHANGELOG.1561668477
-rw-r--r--. 1 root root  130 Jun 27 13:48 CHANGELOG.1561668491
-rw-r--r--. 1 root root  130 Jun 27 13:48 CHANGELOG.1561668506
-rw-r--r--. 1 root root  130 Jun 27 13:48 CHANGELOG.1561668521
-rw-r--r--. 1 root root  130 Jun 27 13:48 CHANGELOG.1561668536
-rw-r--r--. 1 root root  130 Jun 27 13:49 CHANGELOG.1561668550
-rw-r--r--. 1 root root  130 Jun 27 13:49 CHANGELOG.1561668565
drw-------. 2 root root   10 Jun 19  2017 csnap
drw-------. 2 root root   37 Jun 19  2017 htime

Could this be related?

When deleting the replication session I made sure to try the
'delete reset-sync-time' option, but it failed with:

gsyncd failed to delete session info for storage and
10.0.231.81::pcic-backup peers
geo-replication command failed

Here is the volume info:

[root@gluster07 ~]# gluster volume info storage

Volume Name: storage
Type: Distribute
Volume ID: 6f95525a-94d7-4174-bac4-e1a18fe010a2
Status: Started
Snapshot Count: 0
Number of Bricks: 7
Transport-type: tcp
Bricks:
Brick1: 10.0.231.50:/mnt/raid6-storage/storage
Brick2: 10.0.231.51:/mnt/raid6-storage/storage
Brick3: 10.0.231.52:/mnt/raid6-storage/storage
Brick4: 10.0.231.53:/mnt/raid6-storage/storage
Brick5: 10.0.231.54:/mnt/raid6-storage/storage
Brick6: 10.0.231.55:/mnt/raid6-storage/storage
Brick7: 10.0.231.56:/mnt/raid6-storage/storage
Options Reconfigured:
features.quota-deem-statfs: on
features.read-only: off
features.inode-quota: on
features.quota: on
performance.readdir-ahead: on
nfs.disable: on
geo-replication.indexing: on
geo-replication.ignore-pid-check: on
changelog.changelog: on
transport.address-family: inet


Any ideas?

Thanks,
 -Matthew
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