Re: Distributed volume - While copying received "Transport end point not connected" error

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On Mon, Jul 20, 2015 at 1:41 PM, Varadharajan S <rajanvaradhu@xxxxxxxxx> wrote:
Hi,

We are using Ubuntu 14.04 server and for storage purpose we configured gluster 3.5 as distributed volume and find the below details,

1).4 Servers - 14.04 Ubuntu Server and each server disks free spaces are  configured as ZFS raiddz2 volume

2). Each server has /pool/gluster zfs volume and capacity as - 5 TB,8 TB,6 TB and 10 TB

3). Bricks are - rep1,rep2,rep3 and st1 and all the bricks are connected as Distributed Volume and mounted on each system as,
 
  For E.x in rep1 -> mount -t glusterfs  rep1:/glustervol  /data.
                  rep2  -> mount  -t glusterfs  rep2:/glustervol  /data
                  rep3  -> mount  -t glusterfs  rep3:/glustervol  /data
                  st1    ->  mount  -t glusterfs  st1:/glustervol  /data

So we get /data is having  around 29 TB and all our applications data's are stored in /data mount point.

Details about volume:

volume glustervol-client-0
    type protocol/client
    option send-gids true
    option password b217da9d1d8b-bb55
    option username 9d76-4553-8c75
    option transport-type tcp
    option remote-subvolume /pool/gluster
    option remote-host rep1
    option ping-timeout 42
end-volume

volume glustervol-client-1
    type protocol/client
    option send-gids true
    option password b217da9d1d8b-bb55
    option username jkd76-4553-5347
    option transport-type tcp
    option remote-subvolume /pool/gluster
    option remote-host rep2
    option ping-timeout 42
end-volume

volume glustervol-client-2
    type protocol/client
    option send-gids true
    option password b217da9d1d8b-bb55
    option username 19d7-5a190c2
    option transport-type tcp
    option remote-subvolume /pool/gluster
    option remote-host rep3
    option ping-timeout 42
end-volume

volume glustervol-client-3
    type protocol/client
    option send-gids true
    option password b217da9d1d8b-bb55
    option username c75-5436b5a168347
    option transport-type tcp
    option remote-subvolume /pool/gluster
    option remote-host st1

    option ping-timeout 42
end-volume

volume glustervol-dht
    type cluster/distribute
    subvolumes glustervol-client-0 glustervol-client-1 glustervol-client-2 glustervol-client-3
end-volume

volume glustervol-write-behind
    type performance/write-behind
    subvolumes glustervol-dht
end-volume

volume glustervol-read-ahead
    type performance/read-ahead
    subvolumes glustervol-write-behind
end-volume

volume glustervol-io-cache
    type performance/io-cache
    subvolumes glustervol-read-ahead
end-volume

volume glustervol-quick-read
    type performance/quick-read
    subvolumes glustervol-io-cache
end-volume

volume glustervol-open-behind
    type performance/open-behind
    subvolumes glustervol-quick-read
end-volume

volume glustervol-md-cache
    type performance/md-cache
    subvolumes glustervol-open-behind
end-volume

volume glustervol
    type debug/io-stats
    option count-fop-hits off
    option latency-measurement off
    subvolumes glustervol-md-cache
end-volume


ap@rep3:~$ sudo gluster volume info
 
Volume Name: glustervol
Type: Distribute
Volume ID: 165b-XXXXX
Status: Started
Number of Bricks: 4
Transport-type: tcp
Bricks:
Brick1: rep1:/pool/gluster
Brick2: rep2:/pool/gluster
Brick3: rep3:/pool/gluster
Brick4: st1:/pool/gluster

We have standalone server(bak-server), which is sitting outside glusterfs for backup our data.At present our /data is having around 4 TB and initiated rsync data size around 1.2 TB from server rep1 (one of the gluster server) to backup server. After some 2 hour, it throws "Transport end point connect error" and the copy is canceled. But if i checked the volume status and all is working fine.

What could be the reason and is there any tuning parameter needs to be set, for these type of activity ?

Please attach the mount logs from rep1 to determine why "Transport end point not connected error was shown"
 

Regards,
Varad


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Raghavendra Talur 

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