Difference between revisions of "How to run a simulation of a control plane with ERSAP backend"

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: '''Run a java-based consumer of ET system buffers'''
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=== Now that it compiles, as an example, implement ERSAP backend reassembler communication of fifo fill percentage to load-balancer control plane ===
 
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: '''Rename a few files and directories, from helloworld to loadBalancerControl (or whatever you want)'''
 
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java -cp $GRPC_JAVA_INSTALL_DIR/jars/./et-16.5.jar org.jlab.coda.et.apps.ErsapFifoConsumer -f /tmp/fifoEt -v -d 1
  
 
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Revision as of 18:37, 3 January 2023


Start with the gRPC installation directory and define some environmental variables
export GRPC_INSTALL_DIR=/daqfs/gRPC/installation
export GRPC_JAVA_INSTALL_DIR=/daqfs/gRPC/java_installation
export PATH="$GRPC_INSTALL_DIR/bin:$PATH"
export LD_LIBRARY_PATH="$GRPC_INSTALL_DIR/lib:$LD_LIBRARY_PATH"


Access to ET system files has been made simple by placing them into the gRPC installation
ET lib is in $GRPC_INSTALL_DIR/lib
ET includes are in $GRPC_INSTALL_DIR/include
ET executables are in $GRPC_INSTALL_DIR/bin
ET jar file is in $GRPC_JAVA_INSTALL_DIR/jars


Run the ET system as a fifo. Use 1000, 150kB buffers
cd $GRPC_INSTALL_DIR/bin
./et_start_fifo -f /tmp/fifoEt -d -s 150000 -n 1 -e 1000
Run a java-based consumer of ET system buffers
java -cp $GRPC_JAVA_INSTALL_DIR/jars/./et-16.5.jar org.jlab.coda.et.apps.ErsapFifoConsumer -f /tmp/fifoEt -v -d 1


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