12-08-2011
Rsync through java program - issues with remote connection failure
Hi Everybody,
I am running rsync through my java application.
The Java application will sync the files with remote machine. During our connection failure testing we noticed an issue running rsync through java program. The java application which is running at source side is not receiving any error message if there are any connection issues during the sync process.
Brief details about the test scenario:
1. We run the Java Program
2. The java program starts the rsync command and sync the large number of files from source to remote destination
3. During the sync process we run the ps -ef | grep rsync to check whether the processes are running or not at both(source and dest) side. Both side rsync processes are running.
4. We identify the rsync process id at target machine and kill the process with Kill -9 <pid>
5. The java code didn't receive any error message and didn't exit. It just hanged.
6. And also noticed that the rsync process is still running at source side and rsync process is also not printing any log message in the log file.
Note : If we run the rsync command directly (not through java program) , then everything is working fine. When we stop the rsync process at target the source process will be stopped.
Through perl its working fine. Not sure what the problem with java...!!!
I don't have any clues to debug this issue.
Please share your thoughts and pointer to debug.
execuse me if i confused you .
Thanks !!
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LEARN ABOUT DEBIAN
libglpk-java
libglpk-java(3) libglpk-java overview libglpk-java(3)
NAME
libglpk-java - GNU Linear Programming Kit Java Binding
DESCRIPTION
The GNU Linear Programming Kit (GLPK) package supplies a solver for large scale linear programming (LP) and mixed integer programming
(MIP). The GLPK project is hosted at http://www.gnu.org/software/glpk.
It has two mailing lists:
- help-glpk@gnu.org and
- bug-glpk@gnu.org.
To subscribe to one of these lists, please, send an empty mail with a Subject: header line of just "subscribe" to the list.
GLPK provides a library written in C and a standalone solver. The source code provided at ftp://gnu.ftp.org/gnu/glpk/ contains the docu-
mentation of the library in file doc/glpk.pdf.
The Java platform provides the Java Native Interface (JNI) to integrate non-Java language libraries into Java applications.
Project GLPK for Java delivers a Java Binding for GLPK. It is hosted at http://glpk-java.sourceforge.net/.
To report problems and suggestions concerning GLPK for Java, please, send an email to the author at xypron.glpk@gmx.de.
ARCHITECTURE
A GLPK for Java application will consist of the following
- the GLPK library
- the GLPK for Java JNI library
- the GLPK for Java class library
- the application code.
GLPK LIBRARY
The GLPK library can be compiled from source code. Follow the instructions in file INSTALL provided in the source distribution. Precompiled
packages are available in many Linux distributions.
The usual installation path for the library is /usr/local/lib/libglpk.so. The library has to be in the search path for binaries.
GLPK FOR JAVA JNI LIBRARY
The GLPK for Java JNI library can be compiled from source code. Follow the instructions in file INSTALL provided in the source distribu-
tion.
The usual installation path for the library is /usr/local/lib/jni/libglpk-java.so. The library has to be in the search path for binaries.
Specify the library path upon invocation of the application, e.g.
java -Djava.library.path=/usr/local/libjni
GLPK FOR JAVA CLASS LIBRARY
The source code to compile the GLPK for Java class library is provided at http://glpk-java.sourceforge.net.
The GLPK for Java class library can be compiled from source code. Follow the instructions in file INSTALL provided in the source distribu-
tion. The usual installation path for the library is /usr/local/share/java/glpk-java.jar.
The library has to be in the CLASSPATH. Specify the classpath upon invocation of the application, e.g.
java -classpath /usr/local/share/java/glpk-java.jar;.
SEE ALSO
Further documentation and examples can be found in the documentation path, which defaults to /usr/local/share/doc/libglpk-java.
version 1.0.18 September 10th, 2011 libglpk-java(3)