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Backport percona server 5.7.29 32 #3
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- jemalloc mallctl_f("opt.lg_chunk", ...) is failing in memory init with
jemalloc 5.1.0. This option was removed in 5.0.0 and versions of jemalloc
greater than 5.0 no longer operate with the concept of lg_chunk. There is no
equivalent replacement functionality. For this specific issue, lg_chunk is
used by PerconaFT to set the threshold where allocations will switch to using
mmap instead of the standard allocator. It is reasonable to recognize the
lg_chunk query failure and pick a rational value and continue on rather than
failing and asserting. For the older jemalloc versions, this value was 4MB
by default.
- Fixed missing initialization of global flag indicating memory startup status.
- Added more assertions in the startup path to catch specific issues.
- Altered behavior of jemalloc startup to recognize when lg_chunk is not
supported and use 4MB instead.
PS-5406 - jemalloc 5.0.x causes TokuDB/PerconaFT to assert on load
- Fixed some incomplete relicensed files from previous round. - Added missing license text to some. - Relicensed more files to Apache V2 that locktree depends on.
PS-5501 : Re-license PerconaFT 'locktree' to Apache V2
"-lpthread" is passed as a dependency to to library merge functions, causing a CMake error because of a non existent target. This patch excludes anything that isn't a target, fixing this issue.
PS-5102: Fix configuration error with MySQL 8.0.16
Current cmake and build scripts refer to a "build_jemalloc" target, which was never actually present in the git tree. Starting with 8.0.16, MySQL CMake scripts set CMP00046 to NEW, which emits errors on non existing dependencies: the scripts work as before, and omit a working makefile, but cmake reports an exit code of 1 in the end, causing jenkins failures. This change removes every mention of the build_jemalloc target, fixing the issue.
PS-5102: Remove old build_jemalloc target
- MySQL Commit e4148f2a22922687f7652c4e3d21a22da07c9e78 alters PSI rwlock interface, bumps version and deprecates prior interface. This breaks PerconaFT portability layer. Must add #ifdef on PSI_CURRENT_RWLOCK_VERSION to compile to appropriate interface for unlock_rwlock.
PS-5363 : Merge MySQL 8.0.17
This could be useful when the server crashed with a corrupted rollback file, and is unable to start up. Specifying --tokudb--force-recovery=6 --super-read-only should start it up in a read-only, but usable state. Some data may be lost and unrecoverable. Starting the server without the read only option is *NOT* supported.
PS-5932: Implementing --tokudb-force-recovery=6 to skip reading the logs
PS-5932: disable cleaner thread and assert on dirty pages
The FT layer is initialized in toku_ft_layer_init, which is normally called in ydb_lib.cc as part of the DLL initialization process. For some reason, the linker previously optimized these construction functions out in tools, and manual initialization calls were added. In the original PS-5932 pull request, a global variable was added to ydb.cc, which changed the linker beheavior: it no longer optimized out the dll initialization function. This resulted in double initialization in tools, asserting in debug builds. Fix: as tokudb uses C++11 on all platforms, a static bool variable is added as a guards around toku_ft_layer_init and _destroy: the functions can be safely called multiple times now.
PS-5932: Fix double initialization in ft tools
PS-5674: Fixed compilation error caused by #warning in sys/sysctrl.h
…rconaFT into backport-Percona-Server-5.7.29-32 Percona Server release 5.7.26-29
…rconaFT into backport-Percona-Server-5.7.29-32 Percona Server release 5.7.27-30
…rconaFT into backport-Percona-Server-5.7.29-32 Percona Server release 5.7.28-31
…rconaFT into backport-Percona-Server-5.7.29-32 Percona Server release 5.7.29-32
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