Web servers accessing gluster volume

Solution In Progress - Updated -

Issue

Web servers are sometimes set up to run on gluster storage servers (i.e. nodes from the trusted storage pool). When this is done, the load on those nodes can be high.

If the web servers are running on the storage node which serves data (i.e. a member of the trusted storage pool), then that node will be hosting the following things:

  1. Gluster storage servers which serve data from the disk whenever there is an I/O request from the client
  2. Gluster mount process which gets requests from the web server and communicates with the gluster server for serving I/O requests
  3. Web server which receives I/O requests from the applications

Thus, the load can be increased on the storage servers in this setup.

Environment

  • RHS-3.0
  • RHGS-3.1

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