OpenStack:Essex Swift Administrator's Guide

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Introduction

The Essex Swift Administrator's Guide provides instructions for managing an OpenStack Swift environment. The guide is meant to compliment the existing [Swift Administrator’s Guide http://docs.openstack.org/developer/swift/admin_guide.html].

Dependencies

The Admin Guide is based on the following software versions:

• Ubuntu: 12.04
• Puppet: 2.7.11
• swift-proxy: 1.4.8+stable+17-0~precise1
• swift-account: 1.4.8+stable+17-0~precise1
• swift-container: 1.4.8+stable+17-0~precise1
• swift-object: 1.4.8+stable+17-0~precise1

Remove a Bad Drive

1. Comment-out or remove definitions for the bad hard drive from the container, object, account rings of the swift-nodes manifest. Here is an example of commenting-out device sdb from a Swift Storage Node named swift01:

   #@@ring_object_device { "${swift01_local_net_ip}:6000/sdb":
   #  zone        => $swift_zone,
   #  weight      => 1,
   #}
   
   #@@ring_account_device { "${swift01_local_net_ip}:6002/sdb":
   #  zone        => $swift_zone,
   #  weight      => 1,
   #}
   
   #@@ring_container_device { "${swift01_local_net_ip}:6001/sdb":
   #  zone        => $swift_zone,
   #  weight      => 1,
   #}

2. From the Proxy Node, remove the bad drive from the 3 swift rings:

   swift-ring-builder /etc/swift/account.builder remove <ip_address>/<device_name>
   
   swift-ring-builder /etc/swift/container.builder remove <ip_address>/<device_name>
   
   swift-ring-builder /etc/swift/object.builder remove <ip_address>/<device_name>

3. From the Proxy Node, rebalance the Swift rings:

   swift-ring-builder /etc/swift/account.builder rebalance
   
   swift-ring-builder /etc/swift/container.builder rebalance
   
   swift-ring-builder /etc/swift/object.builder rebalance

4. Verify the drive has been removed from the 3 rings:

   swift-ring-builder /etc/swift/account.builder
   
   swift-ring-builder /etc/swift/container.builder
   
   swift-ring-builder /etc/swift/object.builder

5. Repeat steps 3-5 if you have additional proxy nodes.