Multipath Call Failed Exit
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OpenStack Cloud Administrator Guide - current
Multipath Call Failed Exit
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Contents
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Preface
Conventions
Notices
Command prompts
Document change history
1. Get started with OpenStack
Conceptual architecture
Logical architecture
OpenStack services
Compute service
Storage concepts
Object Storage service
Block Storage
Networking service overview
Dashboard
Identity Service concepts
Image Service overview
Telemetry
Orchestration service overview
Feedback
2. Identity management
Identity Service concepts
User management
Service management
Groups
Domains
Certificates for PKI
Sign certificate issued by external CA
Request a signing certificate from an external CA
Install an external signing certificate
Configure the Identity Service with SSL
SSL configuration
External authentication with the Identity Service
Use HTTPD authentication
Use X.509
Integrate Identity with LDAP
Separate role authorization and user authentication
Secure the OpenStack Identity service connection to an LDAP back end
Configure Identity service for token binding
User CRUD
Logging
Monitoring
Start the Identity Service
Example usage
Authentication middleware with user name and password
Troubleshoot the Identity Service
Debug PKI middleware
Debug signing key file errors
3. Dashboard
Customize the dashboard
Set up session storage for the dashboard
Local memory cache
Key-value stores
Memcached
Redis
Initialize and configure the database
Cached database
Cookies
4. Compute
System architecture
Hypervisors
Tenants, users, and roles
Images and instances
Image management
Image property protection
Instance building blocks
Instance management tools
Control where instances run
Compute service node firewall requirements
Block storage
EC2 compatibility API
Building blocks
Flavors
Admin password injection
Dashboard
Libvirt-based hypervisors (KVM, QEMU, LXC)
XenAPI (XenServer/XCP)
Windows images (all hypervisors)
Volumes
Networking with nova-network
Networking concepts
DHCP server: dnsmasq
Configure Compute to use IPv6 addresses
Metadata service
Introduction
OpenStack metadata API
EC2 metadata API
Run the metadata service
Enable ping and SSH on VMs
Configure public (floating) IP addresses
Private and public IP addresses
Enable IP forwarding
Create a list of available floating IP addresses
Automatically add floating IPs
Remove a network from a project
Multiple interfaces for your instances (multinic)
Use the multinic feature
Troubleshoot Networking
Cannot reach floating IPs
Disable firewall
Packet loss from instances to nova-network server (VLANManager mode)
KVM: Network connectivity works initially, then fails
System administration
Compute service architecture
API server
Message queue
Compute worker
Network Controller
Manage Compute users
Manage the cloud
Use the euca2ools commands
Show usage statistics for hosts and instances
Show host usage statistics
Show instance usage statistics
Manage logs
Logging module
Syslog
Rsyslog
Secure with root wrappers
How rootwrap works
Security model
Details of rootwrap.conf
Details of .filters files
Configure migrations
KVM-Libvirt
Example Compute installation environment
Enable true live migration
XenServer
Shared storage
Block migration
Migrate instances
Configure remote console access
VNC console proxy
About nova-consoleauth
Typical deployment
VNC configuration options
nova-novncproxy (noVNC)
Frequently asked questions about VNC access to virtual machines
SPICE console
Configure Compute service groups
Database ServiceGroup driver
ZooKeeper ServiceGroup driver
Memcache ServiceGroup driver
Security hardening
Trusted compute pools
Configure Compute to use trusted compute pools
Configuration reference
Specify trusted flavors
Encrypt Compute metadata traffic
Recover from a failed compute node
Evacuate instances
Manual recovery
Recover from a UID/GID mismatch
Recover cloud after disaster
Disaster recovery example
Recover after a disaster
Script the DRP
Troubleshoot Compute
Compute service logging
Guru Meditation reports
Common errors and fixes for Compute
Credential errors, 401, and 403 forbidden errors
Instance errors
Empty log output for Linux instances
Reset the state of an instance
Injection problems
5. Object Storage
Introduction to Object Storage
Features and benefits
Object Storage characteristics
Components
Proxy servers
Rings
Zones
Accounts and containers
Partitions
Replicators
Use cases
Upload
Download
Ring-builder
Ring data structure
Partition assignment list
Replica counts
Partition shift value
Build the ring
Cluster architecture
Access tier
Factors to consider
Storage nodes
Factors to consider
Replication
Database replication
Object replication
Object Storage monitoring
Swift Recon
Swift-Informant
Statsdlog
Swift StatsD logging
Troubleshoot Object Storage
Drive failure
Server failure
Detect failed drives
Emergency recovery of ring builder files
6. Block Storage
Introduction to Block Storage
Manage volumes
Boot from volume
Configure an NFS storage back end
Configure a GlusterFS back end
Configure a multiple-storage back-end
Enable multi back-end
Configure Block Storage scheduler multi back-end
Volume type
Usage
Back up Block Storage service disks
Migrate volumes
Gracefully remove a GlusterFS volume from usage
Back up and restore volumes
Export and import backup metadata
Troubleshoot your installation
Troubleshoot the Block Storage configuration
Multipath Call Failed Exit
Problem
Solution
Failed to Attach Volume, Missing sg_scan
Problem
Solution
Failed to attach volume after detaching
Problem
Solution
Duplicate 3PAR host
Problem
Solution
Failed to attach volume after detaching
Problem
Solution
Failed to attach volume, systool is not installed
Problem
Solution
Failed to connect volume in FC SAN
Problem
Solution
Cannot find suitable emulator for x86_64
Problem
Solution
Non-existent host
Problem
Solution
Non-existent VLUN
Problem
Solution
7. Networking
Introduction to Networking
Networking API
Configure SSL support for networking API
Load Balancing-as-a-Service (LBaaS) overview
Firewall-as-a-Service (FWaaS) overview
Plug-in architecture
Plug-in configurations
Configure Big Switch, Floodlight REST Proxy plug-in
Configure Brocade plug-in
Configure OVS plug-in
Configure NSX plug-in
Load Balancer-as-a-Service and Firewall-as-a-Service
Configure PLUMgrid plug-in
Configure Ryu plug-in
Configure neutron agents
Configure data-forwarding nodes
Node set up: OVS plug-in
Node set up: NSX plug-in
Node set up: Ryu plug-in
Configure DHCP agent
DHCP agent setup: OVS plug-in
DHCP agent setup: NSX plug-in
DHCP agent setup: Ryu plug-in
Configure L3 agent
Configure metering agent
Configure Load-Balancing-as-a-Service (LBaaS)
Networking architecture
Overview
Place services on physical hosts
Network connectivity for physical hosts
Tenant and provider networks
Configure Identity Service for Networking
Compute
Networking API and credential configuration
Configure security groups
Configure metadata
Example nova.conf (for nova-compute and nova-api)
Networking scenarios
Open vSwitch
Configuration
Scenario 1: one tenant, two networks, one router
Scenario 1: Compute host config
Types of network devices
Integration bridge
Physical connectivity bridge
VLAN translation
Security groups: iptables and Linux bridges
Scenario 1: Network host config
Open vSwitch internal ports
DHCP agent
L3 agent (routing)
Overlapping subnets and network namespaces
Scenario 2: two tenants, two networks, two routers
Scenario 2: Compute host config
Scenario 2: Network host config
Configure Open vSwitch tunneling
Linux Bridge
Configuration
Scenario 1: one tenant, two networks, one router
Scenario 1: Compute host config
Types of network devices
Scenario 1: Network host config
Scenario 2: two tenants, two networks, two routers
Scenario 2: Compute host config
Scenario 2: Network host config
ML2
ML2 with L2 population mechanism driver
Scenario 1: L2 population with Open vSwitch agent
Scenario 2: L2 population with Linux Bridge agent
Enable security group API
Advanced configuration options
OpenStack Networking server with plug-in
DHCP agent
Namespace
L3 Agent
Namespace
Multiple floating IP pools
L3 Metering Agent
Namespace
L3 metering driver
L3 metering service driver
Limitations
Scalable and highly available DHCP agents
Configuration
Commands in agent management and scheduler extensions
Use Networking
Core Networking API features
API abstractions
Basic Networking operations
Administrative operations
Advanced Networking operations
Use Compute with Networking
Basic Compute and Networking operations
Advanced VM creation operations
Enable ping and SSH on VMs (security groups)
Advanced features through API extensions
Provider networks
Terminology
Provider attributes
Provider extension API operations
L3 routing and NAT
L3 API abstractions
Basic L3 operations
Security groups
Security group API abstractions
Basic security group operations
Basic Load-Balancer-as-a-Service operations
Firewall-as-a-Service
Firewall-as-a-Service API abstractions
Plug-in specific extensions
VMware NSX extensions
VMware NSX QoS extension
VMware NSX QoS API abstractions
Basic VMware NSX QoS operations
VMware NSX provider networks extension
VMware NSX L3 extension
VMware NSX L3 extension operations
Operational status synchronization in the VMware NSX plug-in
Big Switch plug-in extensions
Big Switch router rules
Router rule attributes
Order of rule processing
Big Switch router rules operations
L3 metering
L3 metering API abstractions
Basic L3 metering operations
Advanced operational features
Logging settings
Notifications
Notification options
Setting cases
Logging and RPC
Multiple RPC topics
Authentication and authorization
High availability
Networking high availability with Pacemaker
Plug-in pagination and sorting support
A. Community support
Documentation
ask.openstack.org
OpenStack mailing lists
The OpenStack wiki
The Launchpad Bugs area
The OpenStack IRC channel
Documentation feedback
OpenStack distribution packages
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