1. Pattern definition
The mediator pattern (mediator) is to encapsulate a series of object interactions with a mediation object, so that the objects do not need to explicitly reference each other, so that they are loosely coupled and can
Copy Code code as follows:
Use TestDB
DECLARE @conversation uniqueidentifier
While exists (select 1 from Sys.transmission_queue)
Begin
Set @conversation = (select top 1 conversation_handle from Sys.transmission_queue)
End
Step 1:perpar Database & Data
Copy Code code as follows:
Use master
Go
Create Database Inventory
Go
Use Inventory
Go
Create Table Inventory
(
TitleID nvarchar (6) NOT NULL,
Quantity int NOT NULL,
Primary KEY
-- Select name, database_id, service_broker_guid, is_broker_enabled from sys. databases;
-- 1 one process messages table for storing sending message action-- Create table imessages (Id uniqueidentifier not null, messagebody nvarchar (200),
--Current main library PROD3, standby library aux--View Primary Reserve log transmission sys@prod3> select Max (sequence#) from V$archived_log;
MAX (sequence#)--------------sys@aux> Select sequence#,applied from V$archived_log ORDER by 1 desc;
I. Introduction of the problem
When we use the log function (JDK log or log4j) in Java programs, we find that the log system will automatically print out rich information for us in the following format:
[Run time] [Current class name] [Method Name]
In JavaScript, you often encounter situations where you want to listen to multiple Li in a list, assuming we have a list of the following:
Copy Code code as follows:
item1
item2
item3
item4
If we want to achieve
Principle and Application of DICOM mpps
Introduction
The medical imaging Archiving and Communication System (PACS) has developed rapidly in recent years. The purpose is to comprehensively address the acquisition, display, storage, transfer and management of medical images. PACS is a computer network for Digital Management of Medical images. the data exchange standard protocol is a prerequisite for informat
In the way that cluster mode is deployed, master and slave are paired by specifying the same brokername parameter, and master's Brokerid must be 0,slave Brokerid must be greater than 0. A master can mount multiple slave, and multiple slave under the same master are differentiated by specifying different brokerid. There are 4 ways to deploy:
Deployment Method
Advantages
Disadvantages
Notes
Single master mode
once the
=============================="Architecture Design: Inter-system Communication (42)--DIY ESB (3)"5. Borker Server SelectionIn the previous three articles, we introduced the design of the top-level design of ESB middleware, introduced the main control service how to log collection and monitoring of multiple esb-brokers dynamic nodes, and also introduced the Esb-broker node how to carry on the dynamic route definition load management. In this article we
long-time processing like winform.
I used to encounter a depressing problem when using winform, which is related to doevent. The radiology domain usually has objects of patient, examination, sequence, and image levels. On the user interface, you usually need to display these objects in a multi-level list, generally, we do not use tree views too much on the doctor's interface, because it is easy to use a list when operating large-scale data. In this classification list, a common interface logic
data changes to the data reconciliation module , which is the step 2 indicated in. The master service also has two other functions: responsible for the status monitoring of the Rights Management and service running modules.
Because there are many nodes (hereinafter referred to as Esb-broker server nodes) in the Service runtime module responsible for the eventual execution of the process orchestration, and the number of these Esb-
[His] Definitions of commonly used nouns and abbreviations in hit industry1. EHR resident personal electronic health record2. MPI resident Personal Master Index3. His hospital management information system4. Clinical information System of CIS Hospital5. PRM Patient Relationship Management6. LIS Inspection Information System7. RIS Radiology Information System8. PACS medical image storage and transmission system9. UIS Ultrasonic Information System10.EIS
How do I choose the number oftopics/partitions in a Kafka cluster?
How to select the number of topics/partitions for a Kafka cluster.
This is a common question asked by many Kafka users. The goal of this post is to explain a few important determining factors andprovide a few simple formulas.
This is a problem that many Kafka users often ask. The purpose of this paper is to introduce some important decision factors related to this problem, and to provide some simple calculation formulas. More par
Background:
Recently I went to the hospital to deploy the equipment and debug the PACS system, and encountered a strange problem.The basic scenario is: The internal network conditions of the hospital are complex. You must access the PACS server in the top-floor data center when you have installed the graphic clients in the clinics on multiple floors. At first, the firewall was shut down for debugging, And
MQ deployment Mode1. Master-slave Deployment Mode1) Shared FileSystem Master-slave deployment method Mainly through the shared storage directory to achieve master and slave hot standby, all the ACTIVEMQ applications are constantly gaining control of the shared directory, which application grabbed control, it became master.Multiple shared storage directory applications, who start first, who can get control of the first shared directory become master, other applications can only be used as slave2
to buy all kinds of stockings. Of course, there are some business data, if the storage database waste, and directly with the traditional storage drive is inefficient, this time, you can also use Kafka distributed to store.3. Related Concepts in Kafka· BrokerThe Kafka cluster contains one or more servers, which are called broker. A Kafka server is a broker, a cluster consists of multiple brokers, and a
This was a common question asked by many Kafka users. The goal of this post are to explain a few important determining factors and provide a few simple formulas.More partitions leads to higher throughputThe first thing to understand are that a topic partition are the unit of parallelism in Kafka. On both the producer and the broker side, writes to different partitions can be do fully in parallel. So expensive operations such as compression can utilize
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