mysql-5.6
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Facebook's branch of the Oracle MySQL v5.6 database. This includes MyRocks.
Summary: (Range Locking pull request,filed against fb-mysql-8.0.23) This adds a my.cnf parameter, rocksdb_use_range_locking. When it is ON, MyRocks will: - initialize RocksDB to use range-locking lock manager - for all...
Meta's patch has changed the table map log event and this test uses pre-generated upstream ones, which are incompatible. It would be possible to recreate pre-generated events in Meta format,...
In most cases, secondary index values are empty, thus `rocks_iter->value()` is not needed in such cases. We realized an SST with **lazy load** of value, this is a big improvement...
in `Rdb_iterator_base::next_with_direction`, it checks prefix and lower bound and upper bound, this consuming too many cpu in our cases, when running tpcc, the flame graph showing these 3 compare takes...
In tpcc, optimize `bmsql_history` immediately return and has no any effect, which `bmsql_history` has a hidden pk, no primary index and any other index.
Fix START/STOP SLAVE deadlock caused by slave stats daemon Under load, if START SLAVE IO_THREAD and STOP SLAVE execute concurrently, the following deadlock is possible: - Thread 44 is executing...
RocksDB supports range lock (https://github.com/facebook/rocksdb/tree/main/utilities/transactions/lock/range). I searched the myrocks codebaes, but didn't find code that enables range lock in RocksDB. Is range lock running in production in Meta? If not,...
In 8.0.32 but not 8.0.28, the following test, reduced from `main.mdl_sync` test, which does not fail: ``` --source include/count_sessions.inc --echo # --echo # Bug#21021848 ASSERTION `M_STATUS == DA_ERROR' FAILED. --echo...
The BrokerFactory functionality in Apache OpenJPA 1.x before 1.2.3 and 2.x before 2.2.2 creates local executable JSP files containing logging trace data produced during deserialization of certain crafted OpenJPA objects,...
