Open-source graph database, built for real-time streaming data, compatible with Neo4j.
cyphergraphgraph-algorithmsgraph-analysisgraph-databasekafkakafka-streamsnosqlopencypherstream-processingstreaming-data
f85095c203
Summary: During the following scenario: - start a HA cluster with 3 machines - find the leader and start sending queries - SIGTERM the leader but leave other 2 machines untouched The leader would be stuck in the shutdown phase. This was happening because during the shutdown phase of the Bolt server, a `graph_db_accessor` would try to commit a transaction after we've already shut down Raft server. Raft, although not running, is still thinking it's in the Leader mode. Tx Engine calls the `SafeToCommit` method to Commit transactions, and ends up in an infinite loop. Since Raft was shut down it won't handle any of the incoming RPCs and won't change it's mode. The fix here is to shut down the Bolt server before Raft, so we don't have any pending commits once Raft is shut down. Reviewers: ipaljak Reviewed By: ipaljak Subscribers: pullbot Differential Revision: https://phabricator.memgraph.io/D1853 |
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| customers | ||
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| release | ||
| src | ||
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| tools | ||
| .arcconfig | ||
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| .ycm_extra_conf.py | ||
| apollo_archives.py | ||
| apollo_archives.yaml | ||
| apollo_build.yaml | ||
| CHANGELOG.md | ||
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| README.md | ||
memgraph
Memgraph is an ACID compliant high performance transactional distributed in-memory graph database featuring runtime native query compiling, lock free data structures, multi-version concurrency control and asynchronous IO.
dependencies
Memgraph can be compiled using any modern c++ compiler. It mostly relies on the standard template library, however, some things do require external libraries.
Some code contains linux-specific libraries and the build is only supported on a 64 bit linux kernel.
- linux
- clang 3.8 (good c++11 support, especially lock free atomics)
- antlr (compiler frontend)
- cppitertools
- fmt format
- google benchmark
- google test
- glog
- gflags