jdk/src/linux/doc/man/jsadebugd.1
author michaelm
Thu, 13 Jan 2011 11:01:30 +0000
changeset 7980 3af394bb6f59
parent 5865 47da38a8c0f0
child 9573 c02ff5a7c67b
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6896088: URLClassLoader.close() apparently not working for JAR URLs on Windows Reviewed-by: chegar

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.TH jsadebugd 1 "02 Jun 2010"

.LP
.SH "Name"
jsadebugd \- Serviceability Agent Debug Daemon
.LP
.SH "SYNOPSIS"
.LP

.LP
.nf
\f3
.fl
\fP\f3jsadebugd\fP pid [ server\-id ]
.fl
\f3jsadebugd\fP executable core [ server\-id ]
.fl
.fi

.LP
.SH "PARAMETERS"
.LP

.LP
.RS 3
.TP 3
pid 
process id of the process to which the debug server should attach. The process must be a Java process. To get a list of Java processes running on a machine, jps(1) may be used. At most one instance of the debug server may be attached to a single process. 
.RE

.LP
.RS 3
.TP 3
executable 
.RE

.LP
.RS 3
.TP 3
Java executable from which the core dump was produced 
.RE

.LP
.RS 3
.TP 3
core 
Core file to which the debug server should attach. 
.RE

.LP
.RS 3
.TP 3
server\-id 
Optional unique id, needed if multiple debug servers are started on the same machine. This ID must be used by remote clients to identify the particular debug server to attach. Within a single machine, this ID must be unique. 
.RE

.LP
.SH "DESCRIPTION"
.LP

.LP
.LP
\f3jsadebugd\fP attaches to a Java process or core file and acts as a debug server. Remote clients such as jstack(1), jmap(1), and jinfo(1) can attach to the server using Java Remote Method Invocation (RMI). Before starting \f2jsadebugd\fP, 
.na
\f2rmiregistry\fP @
.fi
http://java.sun.com/javase/6/docs/technotes/tools/index.html#rmi must be started with:
.LP
.RS 3

.LP
.nf
\f3
.fl
\fP\f4rmiregistry \-J\-Xbootclasspath/p:$JAVA_HOME/lib/sajdi.jar\fP\f3
.fl
\fP
.fi
.RE

.LP
.LP
where \f2$JAVA_HOME\fP is the JDK installation directory. If rmiregistry was not started, jsadebugd will start an rmiregistry in a standard (1099) port internally. Debug server may be stopped by sending SIGINT (pressing Ctrl\-C) to it.
.LP
.LP
\f3NOTE \- This utility is unsupported and may or may not be available in future versions of the JDK. In Windows Systems where dbgeng.dll is not present, 'Debugging Tools For Windows' needs to be installed to have these tools working. Also, \fP\f4PATH\fP\f3 environment variable should contain the location of \fP\f4jvm.dll\fP\f3 used by the target process or the location from which the Crash Dump file was produced.\fP
.LP
.LP
\f3For example, \fP\f4set PATH=<jdk>\\jre\\bin\\client;%PATH%\fP
.LP
.SH "SEE ALSO"
.LP
.RS 3
.TP 2
o
jinfo(1) 
.TP 2
o
jmap(1) 
.TP 2
o
jps(1) 
.TP 2
o
jstack(1) 
.TP 2
o
.na
\f2rmiregistry\fP @
.fi
http://java.sun.com/javase/6/docs/technotes/tools/index.html#rmi 
.RE

.LP