Query allocator and evaluation allocator were different.
After analysis, was determined they should be the same, this will help
future development reduce TypeValue copies during queries.
Changes:
- Common allocator, PoolResource backed by MonotonicResource
- Optimized Pool, now O(1) alloc/dealloc as all chunks in Pool form a single
free list
- 2nd PoolResource, using bin sizing, not as perfect for memory usage but
O(1) bin selection
- Now have jemalloc's background thread to make sure decay and return
to OS happens
- Optimized ProperyValue to be faster at destruction/copy/move
- Less temporary memory allocations
- CSV reader now maintains a common line buffer it reuses on line reads
- Writing out bolt values, now reuses a values buffer
- Evaluating an int no longer makes temporary strings for errors it most
likely never throws
- ExpandVariable will reuse existing edge list in frame it one existed
- Remove the e2e that did concurrent mgp_* calls on the same transaction
(ATM this is unsupported)
- Fix up the concurrent mgp_global_alloc test to be testing it more precisely
- Reduce the memory limit on detach delete test due to recent memory
optimizations around deltas.
- No longer throw from hook, through jemalloc C, to our C++ on other
side. This cause mutex unlocks to not happen.
- No longer allocate error messages while inside the hook. This caused
recursive entry back inside jamalloc which would try to relock a
non-recursive mutex.
* Split queries into system and data queries
* System queries are sequentially executed and generate separate transaction deltas
* System transaction try locks for 100ms
* last_commited_system_ts saved to DBMS durability
* Replicating CREATE/DROP DATABASE
* Sending a system snapshot if REPLICA behind
* Passing a copy of the gatekeeper::access as std::any to all functions that could call an async execution
* Removed delete_on_drop flag (we now always delete on drop)
* Using UUID as the directory name for databases
* DBMS durability update (added versioning and salient information)
* Automatic migration from previous version
* Interpreter can run some queries without a target database
* SHOW REPLICA returns the status of the currently active DB
* Returning UUID instead of db name in the RPC responses
* Using UUIDs for database specification in RPC (not name)
* FrequentCheck forces update on reconnect
* TimestampRpc will detect if a replica is behind, and will update client's state
* Safer SLK reads
* Split SHOW DATABASES in two SHOW DATABASES (list of current databases) and SHOW DATABASE a single string naming the current database
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Co-authored-by: Gareth Lloyd <gareth.lloyd@memgraph.io>
* Decouple BoltSession and communication::bolt::Session
* Add CREATE/USE/DROP DATABASE
* Add SHOW DATABASES
* Cover WebSocket session
* Simple session safety implemented via RWLock
* Storage symlinks for backward. compatibility
* Extend the audit log with the DB info
* Add auth part
* Add tenant recovery
The fields of ROUTE message were not read from the input buffer, thus the
input buffer got corrupted. Sending a new message to the server would result
reading the remaining fields from the buffer, which means reading some values
instead of message signature. Because of this unmet expectation, Memgraph closed
the connection. With this fix, the fields of the ROUTE message are properly
read and ignored.
* Disable sequential test
* Remove parent build and benchmark
* Save test data
* Save e2e logs in build folder
* Define different recovery time for each test
