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ReleaseNotes.md

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Release Notes

Version

These notes are for STINGER version 15.10

Notes

  • STINGER directory structure and CMakeLists.txt have changed to support parallel build
    • lib/ directory houses the STINGER libraries
    • src/ directory houses the supporting binaries
    • external/ directory houses external dependencies
    • Can now build with make -j8 after performing cmake in the build directory
  • Prevent remapping of graph on each batch sent over protobuf (fixing a memory leak)
  • STINGER management web interface merged in
    • Hosted under the util/management directory
    • Flask API merged with the management console flask API and is now in util/flask
    • Old STINGER web interface now in util/graph_explorer
  • Flask API improvements
    • Fix for empty batches
    • Optimization on sending batches
    • Flask is fully aware of directedness and is consistent with STINGER
    • Added a Swagger UI documentation to the Flask API
    • Added requirements.txt for easy dependency installation (Use pip install -r requirements.txt)
  • PageRank changes
    • A PageRank that works on a directed graph was added
    • A PageRank that works over a subset of vertices was added. A JSON RPC call was also added to call this method
  • stinger_alg
    • Most algorithms are now in the lib/stinger_alg directory
    • Algorithms are now uniformly used between the client applications and the JSON RPC server
  • netflow_stream
    • Bug fixes
  • Adamic Adar
    • Bug fix to the calculation to now be right for undirected graphs
  • Numerous whitespace fixes (removing tabs)
  • Refactored array_to_json_monolithic to reduce code redundancy
  • Added type filtering to JSON requests on get_data_array_*
  • Betweenness Centrality
    • Uses a BFS style solving approach now that is compatible with directed graphs and has a near identical runtime to old version
  • Changed the default STINGER to be 3/4 of the specified memory size
  • Added a configuration file option to the server that uses libconfig
    • Can be used to specify number of vertices, edge types, memory size, etc.
    • Can pre-map edge type strings and vertex type strings
    • stinger_new_full and stinger_shared_new_full API changed to support a robust config parameter
  • Traversal macros had several bugs that were squashed
  • Updated Readme.md to reference config file changes
  • Added Testing infrastructure
    • Using googletest for tests
    • Added rule to CMake for make check that runs all unit tests
    • Updated travis.yml to automatically run make check on any new PRs
  • travis.yml
    • Fixed travis to run in a docker container allowing for faster CI tests

Version

These notes are for STINGER version 06.15.

Notes

  • All executable names now prepended with "stinger_"
  • Switch to pthreads instead of fork() in STINGER server
  • Switch to UNIX domain sockets for algorithm/monitor communication (TCP is supported through ccmake)
  • STINGER batch server drops new batches when the queue reaches 100
  • Monitor process can reconnect without timeout
  • New sparse matrix-sparse vector client
  • New streaming PageRank implementation
  • Add Metis file support to the STINGER server
  • New Python Flask interface for STINGER
  • Improvements to the random edge generator stream
  • Changes to random edge generator stream string generation
  • Catch signals and clean up in the STINGER server
  • New test routines for STINGER names
  • STINGER names structure can now resize when full
  • Consistency check when saving STINGER to disk or recovering from disk
  • New monitor process that dumps graph edges to disk
  • New performance counters available in JSON-RPC server
  • New NetFlow v5 stream
  • New weakly connected components algorithm
  • New connected components algorithm based on edge types
  • JSON-RPC server reports execution time for every query
  • Add JSON-RPC method for Adamic-Adar score
  • Add JSON-RPC method to report STINGER health statistics
  • ADD JSON-RPC method to report all registered methods
  • Add JSON-RPC method for labeled breadth-first search
  • Add JSON-RPC method for seed set expansion
  • Add JSON-RPC method for egonet
  • Cache block alignment of STINGER edge blocks
  • Clean up /dev/shmem at STINGER server exit
  • Fixed threading and signals for Mac OS X
  • Bug fixes in src/lib/stinger_net/src/stinger_mon.cpp
  • Bug fix in stinger_set_initial_edges()
  • Bug fix in stinger_names_create_type()
  • Bug fix in stinger_physmap_id_get()
  • Bug fixes in JSON-RPC server
  • Bug fix in JSON-RPC breadth-first search
  • Bug fix in PageRank algorithm
  • Bug fix in src/bin/clients/tools/json_rpc_server/src/rpc_state.cpp
  • Bug fix in src/bin/clients/tools/json_rpc_server/src/mon_handling.cpp
  • Bug fix in stinger_incr_edge()
  • Bug fix in sampling betweenness centrality algorithm