Re: Node down and volumes unreachable

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On 02/13/2014 08:06 PM, Marco Zanger wrote:
Hi all,

I’m experiencing a strange issue related to both distribute and
replicate volumes. The problem is this:

I have two servers, A and B. Both share some replicate volumes and
distribute volumes, like this:

Volume Name: upload_path

Type: Replicate

Volume ID: 15ca11e2-206e-414d-8299-3ae20c54bd8a

Status: Started

Number of Bricks: 1 x 2 = 2

Transport-type: tcp

Bricks:

Brick1: <IP-A>:<some_path>/upload_path

Brick2: <IP-B>: <some_path>/upload_path

Each server mounts to self like this. In server A:

glusterfs#<IP_A>:upload_path on <some_path>/upload_path type fuse
(rw,default_permissions,allow_other,max_read=131072)

I’ve used both glusterfs and nfs for my tests, but when server B is down
(unreachable from A) we cannot access (nor read or write) the volumes
within A.

By inaccessible state, do you refer to read/write operations hanging or erroring out? Does it stay forever in this inaccessible state? If you check your client log files around the time server B is unreachable from A, there might be some clues around this behavior.

-Vijay


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