Achieving High Availability of WebSphere on z/OS through Failover and Timeout Configuration

Session 1783 – Part II ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 1

Why WebSphere on z/OS? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 2

Features and Technology Unique to z/OS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 3

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 4 Infrastructure Design with Focus on High Availability

WebSphere on z/OS Failover and Recovery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 5

HCSC WebSphere on z/OS environments ,[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 6 Unit and String Integration Test ,[object Object],System Integration Test User Acceptance Integrated Acceptance Load and Performance ,[object Object],Development Path to Production Our WebSphere on z/OS infrastructure has been architected to support development, testing and Production deployment in the following environments:

Sample WebSphere on z/OS Cells configuration (naming convention has been changed to protect our environment) Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 7

Failover - Servant Outage ,[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 8 LPAR B Q3LP5 Cluster Undispatched work ,[object Object],[object Object],[object Object],[object Object]

Minimizing Effects of Timeout ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 9

Setting Read timeout on Client Call ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 10 import org.springframework.remoting.jaxrpc.JaxRpcPortProxyFactoryBean; import javax.xml.rpc.Stub; public class MyJaxRpcPortProxyFactoryBean extends JaxRpcPortProxyFactoryBean { private static final String TIMEOUT_PROPERTY_KEY = " axis.connection.timeout "; protected void preparePortStub(Stub stub) { super.preparePortStub(stub); stub._setProperty(TIMEOUT_PROPERTY_KEY, new Integer(60)); System.out.println("In the preparePortStub method");

Setting the queryTimeout on JDBC calls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 11 <bean id="errorDao" parent="baseDaoProxyParent"> <property name="target"> <bean class="com.appl.integration.daoimpl.jdbc.ErrorDaoJdbcImpl" parent="applBaseDaoJdbcParent"> <property name="sqlMap" ref="sqlMap"/> <property name=" queryTimeout" value=“60 "/> <property name="ignoreWarnings" value="true" /> </bean> </property> </bean> <bean id="baseDaoProxyParent" class="org.springframework.aop.framework.ProxyFactoryBean" abstract="true"> …

Health Check Procedures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 12

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 13 Alerts Auto Notification

Understanding Native storage usage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 14

Memory Leak issue using ThreadLocals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 15

Finding Java Threads outside of WebSphere on z/OS management Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 16 Dump Analyzer can be used to find Threads that are allocated outside of WebSphere Thread pool, as shown in example below -

Reference material ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 17

Questions Session 1783 – Part II Achieving High Availability with WebSphere on z/OS - user experience 18 ?

Achieving High Availability of WebSphere on z/OS through Failover and Timeout Configuration

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Achieving High Availability of WebSphere on z/OS through Failover and Timeout Configuration