[Gluster-users] geo-rep will not initialize

[Strahil Nikolov]

 It seems the problem is not in you but in a deprecated python package.

The following link gave me a hint where to look at: https://issues.apache.org/jira/browse/SVN-4899

After replacing 'readfp' with 'read_file on both nodes:
/usr/libexec/glusterfs/python/syncdaemon/gsyncd.py
/usr/libexec/glusterfs/python/syncdaemon/gsyncdconfig.py
the push-pem (in my test case gluster volume geo-replication sourcevol geoaccount at glusterdest::destvol create ssh-port 2244 push-pem force) succeeded and then the rest of the commands in https://docs.redhat.com/en/documentation/red_hat_gluster_storage/3.5/html/administration_guide/sect-Preparing_to_Deploy_Geo-replication#Setting_Up_the_Environment_for_a_Secure_Geo-replication_Slave worke

d without any more issues and the georep was established:

root at glustersource:/mnt# gluster volume geo-replication sourcevol geoaccount at glusterdest::destvol status
 
PRIMARY NODE     PRIMARY VOL    PRIMARY BRICK          SECONDARY USER    SECONDARY                          SECONDARY NODE    STATUS    CRAWL STATUS       LAST_SYNCED                  
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
glustersource    sourcevol      /bricks/vol1/brick1    geoaccount        geoaccount at glusterdest::destvol                      Active    Changelog Crawl    2024-08-29 01:15:36

root at glustersource:/mnt# ls -l /mnt | wc -l
151



root at glusterdest:~# ls -l /mnt | wc -l
151

Best Regards,
Strahil Nikolov


    В петък, 23 август 2024 г. в 14:58:50 ч. Гринуич+3, Karl Kleinpaste <karl at kleinpaste.org> написа:  
 
  On 8/22/24 21:54, Gilberto Ferreira wrote:
  
 Perhaps you can use this tools:
 https://aravindavk.in/blog/gluster-georep-tools/
  I am using it with great success. 
 
 I'll try anything once. In fact, I tried twice. It can't set up.
 
 First, the code has port 22 baked in. I mentioned earlier that my sshd listens on a nonstandard port.
 Looking at the code (gluster_georep_tools/setup/cli.py, glustercli/cli/georep.py), there is provision within functions for a different port, but there is no way that I see to use that in command line args.
 Oddly shortsighted, or maybe I'm missing something.
 
 So second, I tweaked the code to use my nonstandard port as its default, replacing all "22" with mine, and tried again...nope.
 
 Geo-replication session will be established between j and geoacct at pms::n
 root at pms password is required to complete the setup. NOTE: Password will not be stored.
 root at pms's password: 
 [    OK] pms is Reachable(Port 6247)
 Traceback (most recent call last):
   File "/usr/local/bin/gluster-georep-setup", line 8, in <module>
     sys.exit(main())
              ^^^^^^
   File"/usr/local/lib/python3.12/site-packages/gluster_georep_tools/setup/cli.py", line 524, in main
     setup_georep()
   File"/usr/local/lib/python3.12/site-packages/gluster_georep_tools/setup/cli.py", line 461, in setup_georep
     ssh = ssh_initialize(secondary_host, args.secondary_user, passwd)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File"/usr/local/lib/python3.12/site-packages/gluster_georep_tools/setup/cli.py", line 212, in ssh_initialize
     ssh.connect(secondary_host, username=username, password=passwd)
   File "/usr/lib/python3.12/site-packages/paramiko/client.py", line 409, in connect
     raise NoValidConnectionsError(errors)
 paramiko.ssh_exception.NoValidConnectionsError: [Errno None] Unable to connect to port 22 on 172.17.4.3
 
 It seems that paramiko is either still using 22 under the hood somewhere (cf. last line error), or 22 is misinfo but it's insisting on connection using a password, but my (otherwise pretty standard) sshd configuration requires keys-only root login, no password, which is already in place among all these machines.
 
 I'm open to other suggestions.
   
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