IBM WebSphere MQ Low Latency Messaging V2.1 handles
increasing data volumes and offers new high availability and other features
IBM Canada Ltd.
Software Announcement A08-1111
August 26, 2008
 ENUSA08-1111.PDF (114KB)
|
WebSphere® MQ
Low Latency Messaging V2.1 offers the following new capabilities:
- High availability features
- Expanded API support
- Property-based message selection
- Receiver-defined late joiner support
- High performance, including native InfiniBand support
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WebSphere MQ
Low Latency Messaging is designed to deliver high-volume, low-latency reliable
multicast and unicast messaging to help address rapidly increasing data volumes
within the financial markets and other industries with similar requirements.
New high availability function through Reliable and Consistent Message Streaming
(RCMS) features can make WebSphere MQ Low Latency Messaging a very attractive
solution for exchanges and other firms that need to send large message volumes
with high availability and reliability in a tiered, replicated environment.
Version 2.1 adds the following enhancements to existing capabilities:
High availability features through RCMS
- Component replication, automatic failure detection and failover
- Total order sequencing
- Automatic state synchronization for joining applications
- Single acknowledgment multicast reliability
- Support for multiple levels of redundancy, with inter-tier communications
- Support for both duplex and replay modes
Expanded API support
- Support for Javatm and .NET client interfaces
- Support for IBM® and
Sun JVMs
Property-based message selection
- Property-based message filtering
- Authorization framework
- Wildcard subscription
Receiver-defined late joiner support
- Support for partial stream history requests by late joiners
- Receiver control of the number of requested messages for newly accepted
streams
High performance, including native InfiniBand support
- New native InfiniBand implementation accesses InfiniBand at the "native
verb" layer for improved latency, throughput, and scalability.
- Very low latency of 5 microseconds on native InfiniBand or 41 microseconds
on Ethernet can be achieved for 45-byte messages at a throughput rate of 10,000
messages per second.1
- Very high throughput, one-to-many multicast messaging can deliver more
than 40 million 12-byte messages per second on native InfiniBand, approximately
one million 120-byte messages per second on Ethernet, and close to three million
120-byte messages per second on InfiniBand, all on common x86 servers 1.
1 The stated performance numbers are based on measurements using
standard IBM benchmarks
in a controlled environment. The actual throughput that any application will
experience may vary depending upon considerations such as message size, transmission
rate, hardware platform, and network configuration. Therefore, no assurance
can be given that an individual application will achieve the throughput or
latency stated here. Customers should conduct their own testing. For more
detailed performance information, consult your IBM sales representative.
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Refer to the Hardware requirements and Software requirements sections.
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August 26, 2008
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WebSphere MQ
Low Latency Messaging offers a reliable, high-speed, high throughput transport
for a broad range of messages in the front-, middle-, and back-offices of
financial markets, and for other industries with similar needs. The following
are existing core capabilities from WebSphere MQ Low Latency Messaging
V2.0:
- Very high throughput, one-to-many multicast messaging
- High speed, point-to-point communications using user datagram protocol
(UDP) with reliable positive or negative feedback
- Reliable unicast, offering high speed point-to-point messaging over TCP
- Flexible, fine-grained message filtering, traffic rate and congestion
control, and high availability stream failover
- Methods to monitor health and statistics, including latency, for both
multicast and unicast
- Support for a wide variety of platforms including Linux®, Windows®,
and Solaris
WebSphere MQ
Low Latency Messaging V2.1 includes:
High availability features
New high availability function through RCMS can make WebSphere MQ
Low Latency Messaging a very attractive solution for exchanges and alternative
trading systems that need to send large message volumes with high availability
and reliability in a tiered, replicated environment. This capability can also
be used by brokerage services and by large investment banks to send trade
information, reference data, and other information between front-, middle-,
and back-office systems in situations when high levels of reliability are
required.
RCMS has been demonstrated as part of the IBM Stock Exchange Reference Architecture
(SXRA) to sustain a rate of over 1.2 million orders per second with 400 microsecond
latency for a round trip from gateway to matching engine and back. Latency
as low as 50 microseconds has been demonstrated at lower throughput rates.
The high availability features have been demonstrated to fail over from active
to backup within an average of 15 milliseconds with no loss of messages, even
at peak rates1.
- RCMS can offer high availability through a component replication mechanism
that synchronizes the state of primary and backup systems. If one instance
of the application fails, RCMS can quickly detect the failure and automatically
fails over to a backup system. RCMS supports both duplex and replay mode.
In replay mode only one of the components sends data while in duplex mode
all components send data.
- You can increase the level of system availability by adding replicas to
a tier. Synchronization of new members after a failure allows the application
to go back to its original level of redundancy. The ability to initialize
a new server after a failure helps eliminate the need to run with a high degree
of redundancy all of the time, which can help save resources. The synchronization
capability can also be also beneficial when you perform updates and maintenance.
- Total order sequencing enforces a consistent order of message delivery
from independent transmitters to multiple receivers, so all receivers see
the same order of incoming messages. RCMS also offers automatic state synchronization
for joining applications.
- Single acknowledgment multicast reliability (Wait1-ACK) helps avoid message
loss in case of receiver slowdown or failure, without the overhead associated
with full acknowledgment (ACK) reliability. In Wait1-ACK based multicast,
the transmitter needs to get at least one ACK before it can remove messages
from the stream's history queue. This helps ensure that when the transmitter
clears a message from the queue, it has been received at least once. This
feature is particularly suitable for a solution such as RCMS, because component
replication ensures that as long as the data is received once, it will not
be lost.
Expanded API support
Expanded API support adds Java and .NET client interface bindings
to WebSphere MQ
Low Latency Messaging, with IBM and Sun Java Virtual Machine (JVM) support.
- The Java client interface, supported via JNI, is designed
to be consistent with the existing C APIs of the current reliable multicast
and unicast implementations. Performance tests with the Java code
indicate that the Java performance is very close to that of C, with only
a 2 to 5% increase in latency in most cases1.
- The .NET client interfaces are designed to manage C# and Visual Basic
code.
- Both IBM and
Sun JVM support are offered.
Property-based message selection
New property-based message selection capabilities offer message filtering,
an authorization framework, and wildcard subscription.
- Property-based message filtering enables properties to be set for each
outgoing message based on content attributes of the message. At the receiver
side, the application can define a message selector that filters messages
according to the properties that are attached to each message.
- Wildcard subscription enables you to subscribe to a set of topics simultaneously
through the use of wildcard symbols. At the receiver side, the application
can define a selector with the specific wildcard subscription pattern. The
application can also define a message filter that checks the symbol name and
decides if it should be accepted. This system can offer more flexibility to
the application, including dynamic changes to selection rules.
- The authorization framework enables you to filter messages based on the
presence of a security token that can be attached to each message by the sender.
A message selector can be used by the receiver to validate the security token,
and then to select or reject messages based on this validation. It is possible
to integrate this framework with other authorization and authentication systems.
Receiver-defined late-joiner support
Receiver-defined late-joiner support allows late joiners to request a cached
portion of the stream history. Late-joiner support was previously built into WebSphere MQ
Low Latency Messaging V2.0, but the new capability adds receiver control of
the number of messages a receiver may request when accepting a new stream.
High performance, including native InfiniBand support
- Native InfiniBand support is now available on Linux. Low Latency Messaging previously
supported IP over InfiniBand (IPoIB), and has been tested with Voltaire Multicast
Accelerator (VMA) and Cisco Datagram Acceleration Layer (DAL). Throughput
as high as 40 million messages per second has been achieved for small message
sizes. The new native InfiniBand multicast implementation accesses InfiniBand
at the "native verb" layer for improved throughput and latency. The LLM native
InfiniBand implementation has been demonstrated to have latency as low as
5 microseconds for 45-byte messages delivered at 10,000 messages per second1.
- Low Latency Messaging continues to offer very high throughput and low-latency
multicast messaging over 1 Gigabit Ethernet as well, which can deliver approximately
one million 120-byte messages per second and over 8 million smaller messages
per second on common x86 servers. In fact, the transport is so fast that it
can saturate the capacity of common Gigabit Ethernet networks1.
- Very low latency of 42 microseconds for 120-byte messages delivered at
10,000 messages per second on 1 Gigabit Ethernet1.
- WebSphere MQ
Low Latency Messaging achieves its speed by efficiently packetizing data and
exploiting IP multicast infrastructure in a daemonless fashion to eliminate
network connections.
- Native InfiniBand requires only a single change in the reliable multicast
configuration; other than that the application needs to make no changes, so
an application can easily switch between modes of working over native InfiniBand,
IPoIB, and Ethernet.
- High-speed, point-to-point communications is available using UDP with
either positive or negative feedback reliability, along with reliable unicast
for high-speed, point-to-point messaging over TCP/IP.
1The stated performance numbers are based on measurements using
standard IBM benchmarks
in a controlled environment. The actual throughput that any application will
experience may vary depending upon considerations such as message size, transmission
rate, hardware platform, and network configuration. Therefore, no assurance
can be given that an individual application will achieve the throughput or
latency stated here. Customers should conduct their own testing. For more
detailed performance information, consult your IBM sales representative.
IPLA and Subscription and Support considerations
IPLA licenses can be transferred from one machine to another within, but
not limited to an enterprise. You may aggregate the capacity for all the processors
the product is operated on to achieve a more economic price. This will result
in a single Proof of Entitlement (PoE). It is your responsibility to manage
the distribution of Value Units within the limits of the entitlement of the
product license.
Subscription and Support must cover the same capacity as the product license
entitlement. Subscription and Support will be available in the country in
which the agreement is made.
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Program VRM Program name
number
5724-T21 2.1.0 IBM WebSphere MQ Low
Latency Messaging
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Product information is available via the Offering Information Web site
- http://www.ibm.com/common/ssi
Also, visit the Passport Advantage® Web site
- http://www.ibm.com/software/passportadvantage
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Specified operating environment
Hardware requirements
Minimum requirements are listed. The actual requirements for your system
may be greater depending on the complexity of your specific environment, latency,
throughput, and data requirements. For more details, refer to the Requirements
section of the Information Centre for WebSphere MQ Low Latency Messaging.
Additional hardware that may be required based on capacity requirements:
- CPUs (processors or multicore processors)
- Memory
- Servers (for added capacity or redundancy)
- Disks
Gigabit network adapters and routers are required for high-speed transport.
Native InfiniBand and IP over InfiniBand are also supported.
Hardware requirements for WebSphere MQ Low Latency Messaging
- Processor: AMD or Intel® x86 architecture 32- or 64-bit, or Solaris UltraSPARC
- One processor with a minimum speed of 2.0 GHz (dual processor or dual
core recommended)
- Minimum 300 MB required free disk space for installation
- One or more of the following network adapters:
- For Ethernet, 1 Gigabit Ethernet adapters
- For InfiniBand, host channel adapters supported by OFED-1.2
Software requirements
For more details, refer to the Requirements section of the Information
Centre for WebSphere MQ
Low Latency Messaging.
Operating system requirements
For Ethernet, one of the following operating system platforms:
- Red Hat Enterprise Linux 4 (x86 or x86-64)
- Red Hat Enterprise Linux 5 (x86 or x86-64)
- SUSE Enterprise Linux 10 SP1 (x86 or x86-64)
- Microsoft® Windows XP
SP2 (x86 or x86-64)
- Microsoft Windows Server
2003 SP1+ (x86 or 86-64)
- Microsoft Windows Vista
(x86 or x86-64)
- Solaris 10 UltraSPARC (32- or 64-bit)
- Solaris 10 (x86 or x86-64)
For InfiniBand, one of the following operating system platforms:
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- SUSE Linux Enterprise
10 SP1
Runtime requirements
- C applications: Windows platform: Microsoft Visual
C++ 2005 SP1 Redistributable Package (shipped)
- Java applications:
- Linux platform: IBM JRE
5.0 or Sun JRE 5.0
- Solaris platform: IBM JRE 5.0 or Sun JRE 5.0
- Windows platform:
- IBM JRE
5.0 or Sun JRE 5.0
- Microsoft Visual
C++ 2005 SP1 Redistributable Package (shipped)
- .NET applications: Windows platform: Microsoft Visual
C++ 2005 SP1 Redistributable Package (shipped)
InfiniBand runtime requirements
- OpenFabrics Enterprise Distribution (OFED) V1.2, or later
Development system software requirements
- C applications:
- Windows platform: Microsoft Visual
Studio 8.0 32- or 64-bit on one of the following:
- Microsoft Windows XP
(SP2)
- Windows Server
2003 (SP1+)
- Microsoft Windows Vista
- Linux platform:
- GCC 3.4.3 32- or 64-bit on Red Hat Enterprise Linux Advanced Server 4
- GCC 4.1.1 32- and 64-bit on Red Hat Enterprise Linux Server 5
- GCC 4.1.0 32- or 64-bit on SUSE Linux Enterprise Server 10
- Solaris platform: Sun Studio 11 32- and 64-bit on Solaris 10 (SPARC/x86)
- Java applications:
- Linux platform: IBM SDK
5.0 or Sun SDK 5.0
- Windows platform: IBM SDK
5.0 or Sun SDK 5.0
- Solaris platform: IBM SDK 5.0 or Sun SDK 5.0
- .NET applications: Windows platform: Microsoft Visual
Studio 8.0 32
The program's specifications and specified operating environment information
may be found in documentation accompanying the program, if available, such
as a README file, or other information published by IBM, such as an announcement letter. Documentation
and other program content may be supplied only in the English language.
Performance considerations
WebSphere MQ
Low Latency Messaging is a scalable product. Performance depends on the complexity
of the specific environment, volume of data traffic, and the data object size.
The stated performance numbers are based on measurements using standard IBM benchmarks
in a controlled environment. The actual throughput that any application will
experience may vary depending upon considerations such as message size, transmission
rate, hardware platform, and network configuration. Therefore, no assurance
can be given that an individual application will achieve the throughput or
latency stated here. Customers should conduct their own testing. For more
detailed performance information, consult your IBM sales representative.
Planning information
For planning information, refer to the Requirements section of the Information
Centre for WebSphere MQ
Low Latency Messaging.
Customer responsibilities
IBM Services
are available to assist in the installation, design, implementation, and maintenance
of WebSphere MQ
Low Latency Messaging. The following skills are required for implementation
of WebSphere MQ
Low Latency Messaging:
- Networking
- C, Java, and/or .NET programming
- Thorough understanding of the WebSphere MQ Low Latency Messaging
Software Subscription and Support (also referred to as Software Maintenance)
is included with licenses purchased through Passport Advantage and Passport
Advantage Express. Product upgrades and technical support are provided
by the Software Subscription and Support offering as described in the Agreements.
Product upgrades provide the latest versions and releases to entitled software,
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worldwide.
IBM includes
one year of Software Subscription and Support with each program license acquired.
The initial period of Software Subscription and Support can be extended by
the purchase of a renewal option, if available.
Packaging
WebSphere MQ
Low Latency Messaging is distributed as a single package containing:
- Quick Start CD, which includes a readme file, quick start guide, and installation
and configuration guide
- IBM program
package on CD media
Security, auditability, and control
The customer is responsible for evaluation, selection, and implementation
of security features, administrative procedures, and appropriate controls
in application systems and communication facilities.
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IBM Software
Services has the breadth, depth, and reach to manage your services needs.
You can leverage the deep technical skills of our lab-based, software services
team and the business consulting, project management, and infrastructure expertise
of our IBM Global
Services team. Also, we extend our IBM Software Services reach through IBM Business
Partners to provide an extensive portfolio of capabilities. Together, we provide
the global reach, intellectual capital, industry insight, and technology leadership
to support a wide range of critical business needs.
IBM offers
additional premium support and software services for WebSphere MQ Low Latency Messaging
clients.
Optional software services can include:
- Performance tuning
- Capacity planning
- Application development and integration
- Global engineering and deployment
To learn more about IBM Software Premium Support, visit:
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This product is only available via Passport Advantage. It is
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Product information
Licensed function title Product group Product
category
IBM WebSphere MQ Low Latency IBM WebSphere IBM WebSphere
Messaging Front Office Front Office
for Financial for Financial
Markets Markets
Orders can be placed by calling ibm.com, Americas at 800-IBM-CALL
(426-2255).
Program name PID Charge unit
number description
IBM WebSphere MQ Low Latency 5724-T21 Processor Value
Messaging Unit (PVU)
IBM WebSphere MQ Low Latency 5724-T21 Client Device(s)
Messaging
Charge metrics definitions
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Passport
Advantage program licenses
IBM WebSphere MQ
Low Latency Messaging
Part description Part
number
IBM WebSphere MQ Low Latency Messaging
WebSphere MQ Low Latency Messaging Client Device Annual E041JLL
SW S&S Rnwl
WebSphere MQ Low Latency Messaging Client Device Lic + D61ICLL
SW S&S 12 Mo
WebSphere MQ Low Latency Messaging Client Device SW S&S D61IELL
Reinstate 12 Mo
WebSphere MQ Low Latency Messaging Value Unit Annual SW E041KLL
S&S Rnwl
WebSphere MQ Low Latency Messaging Value Unit Lic + SW D61IDLL
S&S 12 Mo
WebSphere MQ Low Latency Messaging Value Unit SW S&S D61IFLL
Reinstate 12 Mo
Passport Advantage supply
Program name/description Part
number
WLLM V2.1.0
WLLM SUSE Linux Enterprise Server (SLES),Solaris SPARC BA0THEN
Platform Edition (S
Passport Advantage customer: Media pack
entitlement details
Customers with active maintenance or subscription for the products listed
are entitled to receive the corresponding media pack.
WLLM V2.1.0
Entitled maintenance Media packs description Part
offerings description number
WebSphere MQ Low Latency WLLM SUSE Linux Enterprise BA0THEN
Messaging per Client Server (SLES),Solaris
Device SPARC Platform Edition (S
WebSphere MQ Low Latency WLLM SUSE Linux Enterprise BA0THEN
Messaging per Value Unit Server (SLES),Solaris
SPARC Platform Edition (S
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IBM WebSphere MQ Low Latency Messaging 5724-T21 L-ACOS-7D5TEM
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For the most current information regarding IBM products, consult your IBM representative
or reseller, or visit the IBM worldwide contacts page
- http://www.ibm.com/planetwide/ca/
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