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Problem(Abstract) |
Collecting data for problems with the IBM® WebSphere®
Application Server Hangs/Performance Degradation component. Gathering this
MustGather information before calling IBM support will help you understand
the problem and save time analyzing the data. |
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Resolving the
problem |
If you already contacted support, continue to the
component-specific MustGather information. Otherwise, click: MustGather:
Read first for all WebSphere Application Server products.
Hangs/Performance Degradation specific MustGather information for the
following:
- Application Server - Extend a Web server's
capabilities to handle Web application requests, typically using Java™
technology. An application server makes it possible for a server to
generate a dynamic, customized response to a client request. The
Application Server product provides multiple application servers that can
be either separately configured processes or nearly identical clones.
- Node Agent - Node agents are administrative
agents that represent a node to your system and manage the servers on that
node. Node agents monitor application servers on a host system and route
administrative requests to servers. A node agent is created automatically
when a node is added to a cell.
- Deployment Manager - Deployment managers are
administrative agents that provide a centralized management view for all
nodes in a cell, as well as management of clusters and workload balancing
of application servers across one or several nodes in some editions. A
deployment manager hosts the administrative console. A deployment manager
provides a single, central point of administrative control for all
elements of the entire Application Server distributed cell.
All of the above processes represent a Java Virtual Machine (JVM™). For
all the Java Virtual Machine (JVM) hang issues, collect the following
information. There is a list of links provided at the bottom of this
document that routes you to the how-to documents for steps that require
additional instructions.
- Thread Dump from the hung JVM. "Appendix A: How to
collect JVM thread dump for the server in hang"
- Collector tool output
- Running the collector tool V6.0
- Running the collector tool V5.1
- Running the collector tool V5.0
- Follow instructions to send
diagnostic information to IBM support.
For a listing of all technotes, downloads, and educational materials
specific to the component, search the WebSphere
Application Server support site.
Appendix A: How to collect JVM thread dump for the server in hang
Identify the PID and follow the instructions in the appropriate technotes
to collect the required thread dump.
Additional Information:
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Cross Reference information |
Segment |
Product |
Component |
Platform |
Version |
Edition |
Application Servers |
Runtimes for Java Technology |
Java SDK |
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