Motorola 6806800C47B ユーザーズマニュアル
Checkpoint Agent
Introduction
Checkpoint Service Programmer’s Reference (6806800C47B)
15
choose the CPND that oversees the active replica of a particular checkpoint via the invocation
of the saCkptActiveReplicaSet() API. In all other cases, the CPD will designate the
CPND that oversees the active replica. The CPND that oversees the active replica of a
particular checkpoint will control all the operations on that checkpoint and it is not constrained
to be present on the same node where the application resides. The CPND that manages the
active replica of a particular checkpoint serializes all the requests to that checkpoint from all the
applications present at different nodes in the cluster.
of the saCkptActiveReplicaSet() API. In all other cases, the CPD will designate the
CPND that oversees the active replica. The CPND that oversees the active replica of a
particular checkpoint will control all the operations on that checkpoint and it is not constrained
to be present on the same node where the application resides. The CPND that manages the
active replica of a particular checkpoint serializes all the requests to that checkpoint from all the
applications present at different nodes in the cluster.
1.2.3
Checkpoint Agent
The Checkpoint Agent (CPA) is a linkable library, which conforms to the SAF APIs described in
the document SAF-AIS-CKPT-B.01.01. The CPA library runs in the context of the application
processes that initialize the CPA library. The SAF APIs are part of this library through which
different checkpoint requests can be issued by the application processes.
the document SAF-AIS-CKPT-B.01.01. The CPA library runs in the context of the application
processes that initialize the CPA library. The SAF APIs are part of this library through which
different checkpoint requests can be issued by the application processes.
1.3
Compliance Report
Checkpoint Service conforms to the Checkpoint specification mentioned in SAF-AIS-CKPT-
B.01.01. The table given below provides the specification conformance report specific to this
release.
B.01.01. The table given below provides the specification conformance report specific to this
release.
Table 1-1 Compliance Table - Checkpoint Service
Section
Description
Supported
3.1.1
Checkpoints
Yes
3.1.2
Sections
Yes
3.1.3
Checkpoint Replica
Yes
3.1.4
Checkpoint Data Access
Yes
3.1.5
Synchronous Update
Yes
3.1.6
Asynchronous Update
Yes
3.1.7
Collocated and Non-Collocated
Checkpoint
Checkpoint
Yes
3.1.8
Active Replica
Yes
3.1.9
Persistence of Checkpoints
Yes
3.2
Include File and Library Names
Yes
3.3
Type Definitions
Yes
3.4
Library Life Cycle
Yes
3.5
Checkpoint Management
Yes
3.6
Section Management
Yes
3.7
Data Access
Yes