Progress Sonic ESB Configuration and Management Guide

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Table 20. Connection Properties for the Sybase Driver (continued) Property Description SelectMethod OPTIONAL {Direct | Cursor} Sybase A hint to the driver that determines whether the driver requests a database cursor for Select statements. Performance and behavior of the driver are affected by this property, which is defined as a hint because the driver may not always be able to satisfy the requested method. ● Direct — When the driver uses the Direct method, the database server sends the complete result set in a single response to the driver when responding to a query. A server-side database cursor is not created. Typically, responses are not cached by the driver. Using this method, the driver must process all the response to a query before another query is submitted. If another query is submitted (using a different statement on the same connection, for example), the driver caches the response to the first query before submitting the second query. Typically, the Direct method performs better than the Cursor method. ● Cursor — When the driver uses the Cursor method, a server-side database cursor is requested. The rows are retrieved from the server in blocks when returning forward-only result sets. The JDBC Statement method setFetchSize can be used to control the number of rows that are retrieved for each request. Performance tests show that the value of setFetchSize significantly impacts performance when the Cursor method is used. There is no simple rule for determining the setFetchSize value that you should use. We recommend that you experiment with different setFetchSize values to find out which value gives the best performance for your application. The Cursor method is useful for queries that produce a large amount of data, particularly if multiple open result sets are used. The default is Direct. User The case-insensitive user name used to connect to your Sybase database. A user name is required only if security is enabled on your database. If so, contact your system administrator to get your user name. Progress Sonic ESB Configuration and Management Guide 8.5 212
Chapter 6: Driver Connection Properties and Data Types by Database Brand Sybase Driver Connection Failover Properties Table 21 summarizes the connection properties that control how connection failover works with the Database Service Sybase driver. See “Sybase Driver Connection Properties” on page 204 for details about configuring each property. Table 21. Connection Failover Properties for the Sybase Driver Property Description AlternateServers List of alternate database servers. An IP address or server name identifying each server is required. Port number and the DatabaseName connection property are optional. If the port number is unspecified, the port number specified for the primary server is used. If a port number is unspecified for the primary server, the port number specified for the primary server is used. ConnectionRetryCount Number of times the driver retries the list of database servers (primary and alternate) until a successful connection is established. The default is 0 (connection retry is not used). ConnectionRetryDelay Wait interval, in seconds, used between attempts to connect to a list of database servers (primary and alternate) when the ConnectionRetryCount property is set to a positive integer. The default is 3. DatabaseName The name of the database to which you want to connect. LoadBalancing Sets whether the driver will use client load balancing in its attempts to connect to the list of database servers (primary and alternate). If client load balancing is enabled, the driver uses a random pattern instead of a sequential pattern in its attempts to connect. The default is false (client load balancing is disabled). See “Client Load Balancing” on page 131 and “Connection Failover” on page 132 for overviews of these features. Specifying Alternate Servers for the Sybase Driver The following connection URL for the Sybase driver specifies connection information for the primary and alternate servers: jdbc:progress:sybase://server1:4100;DatabaseName=TEST; AlternateServers=(server2:4100;DatabaseName=TEST2,server3:4100; DatabaseName=TEST3) 213 Progress Sonic ESB Configuration and Management Guide 8.5
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® ® PROGRESS® SONIC® Sonic ESB
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the redistribution, if any, must in
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the relevant code modules. All Righ
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OF USE, DATA, OR PROFITS; OR BUSINE
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products derived from this software
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Contents Chapter 2: ESB Containers
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Contents Oracle . . . . . . . . . .
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Contents Chapter 12: Using Actional
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Preface About This Guide This guide
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Preface Progress Sonic Documentatio
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Preface 21 Progress Sonic ESB Confi
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23 Progress Sonic ESB Configuration
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Chapter 1: Using Progress Sonic ESB
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Chapter 2: ESB Containers Overview
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Chapter 2: ESB Containers The follo
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Chapter 2: ESB Containers 3. In the
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Chapter 2: ESB Containers ESB Conta
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Chapter 2: ESB Containers Defining
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Chapter 2: ESB Containers ◆ To vi
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Chapter 2: ESB Containers Deploying
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Chapter 2: ESB Containers Adding JA
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Chapter 2: ESB Containers Changing
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Chapter 2: ESB Containers 4. Select
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Chapter 2: ESB Containers The Sonic
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Chapter 2: ESB Containers intercept
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Chapter 2: ESB Containers 4. Select
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Chapter 2: ESB Containers Using Act
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Chapter 2: ESB Containers ◆ To ad
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Chapter 2: ESB Containers 4. Click
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Chapter 3: ESB Endpoints and Connec
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Chapter 4: Configuring Web Services
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Chapter 4: Configuring Web Services
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Chapter 5: Using the Database Servi
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Chapter 6: Driver Connection Proper
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Chapter 11: Using Actional with Son
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Index ESB 59 for endpoints 105 HTTP
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Index instrumentation payload, brok
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Index shutting down management cont
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