Trying to figure our why client gets stuck at "Indexing" "filelist" stage

We have this one host which is pretty similar to other ones that do work without any issues. But this one seems to always get stuck at “Indexing” stage when attempting to run any kind of file backups

So far tried:

  • Older version of client
  • Reinstall of client
  • Switch between local/internet mode

Other notes:

  • Also nothing is being reported by selinux logs, so it shouldn’t be blocked.

Per what I can tell filelist if generated successfully (can see in clientHost in urbackup appDir/data/filelist.ub) it just cannot get it to server?

# web interface log
04/07/20 13:32  	INFO  	Starting unscheduled full file backup...
04/07/20 13:32  	DEBUG  	clientHost: Connecting for filelist...
04/07/20 13:32  	DEBUG  	clientHost: Waiting for filelist
04/07/20 13:32  	DEBUG  	clientHost: Connecting for filelist (async)...
04/07/20 13:32  	INFO  	Backing up "backup" without snapshot.
04/07/20 13:32  	INFO  	Indexing of "backup" done. 1 filesystem lookups 0 db lookups and 0 db updates
04/07/20 13:32  	DEBUG  	clientHost: Doing backup without hashed transfer...
04/07/20 13:32  	INFO  	clientHost: Loading file list...

# client log - debug lvl
Apr 07 14:06:18 clientHost urbackupclientbackend[2575]: ClientService cmd: #IuofVM3FUxtiXm9Ta0HML#2PING RUNNING pc_done=&status_id=2&speed_bpms=0&total_bytes=-1&done_bytes=0&paused_fb=1#token=B0cjwfakAZP6ZUCF5jhj
Apr 07 14:06:28 clientHost urbackupclientbackend[2575]: ClientService cmd: #IuofVM3FUxtiXm9Ta0HML#2PING RUNNING pc_done=&status_id=2&speed_bpms=0&total_bytes=-1&done_bytes=0&paused_fb=1#token=B0cjwfakAZP6ZUCF5jhj
Apr 07 14:06:36 clientHost urbackupclientbackend[2575]: ClientService cmd: PONG
Apr 07 14:06:38 clientHost urbackupclientbackend[2575]: ClientService cmd: #IuofVM3FUxtiXm9Ta0HML#2PING RUNNING pc_done=&status_id=2&speed_bpms=0&total_bytes=-1&done_bytes=0&paused_fb=1#token=B0cjwfakAZP6ZUCF5jhj
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Recv Error in RecvMessage
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: SERVICE_FILESRV finished
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: Started connection to SERVICE_FILESRV
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Received data...
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Received a Packet.
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Sending file (normal) urbackup/filelist.ub metadata_id=0
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Mapped name: /usr/local/var/urbackup/data/filelist.ub
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Received data...
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: FileSrv: Received a Packet.
Apr 07 14:06:40 clientHost urbackupclientbackend[2575]: Received flush.
Apr 07 14:06:48 clientHost urbackupclientbackend[2575]: ClientService cmd: #IuofVM3FUxtiXm9Ta0HML#2PING RUNNING pc_done=&status_id=2&speed_bpms=0&total_bytes=-1&done_bytes=0&paused_fb=1#token=B0cjwfakAZP6ZUCF5jhj

# server log - debug lvl
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Server timeout (2) in FileClient
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Encryption overhead: 150 bytes
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Connecting to target service...
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Established internet connection. Service=1
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Reconnected successfully,
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Flushing FileClient...
Apr 07 14:06:41 serverHost urbackupsrv[58483]: Authed+capa for client 'clientHost' (encrypted-v2, compressed-v2, token auth) - 1 spare connections

Any ideas? So far I haven’t been able to find any solution for this from websearches.