Cluster Cannot Create Enough Replicas

Sometimes, the cluster might not create the required number of data chunks even if enough chunk servers are present in the cluster.

This may be the case when you create new chunk servers by making copies of an existing chunk server (e.g., you set up a chunk server in a virtual machine and then clone this machine). In this case, all copied chunk servers

• Have the same UUID — that is, the UUID of the original server.
• The cluster thinks that all chunk servers are located on the original host and cannot allocate new data chunks.

To solve the problem, generate a new UUID for a cloned chunk server by running the following command on the destination host:

# /usr/bin/uuidgen -r | tr '-' ' ' | awk '{print $1$2$3}' > /etc/pstorage/host_id

For more information on the uuidgen utility, see its man page.