database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-27 21:01:50 +03:00
Code Activity

MCOL-4912 This patch introduces Extent Map index to improve EM scaleability

Browse Source 
EM scaleability project has two parts: phase1 and phase2.
        This is phase1 that brings EM index to speed up(from O(n) down
        to the speed of boost::unordered_map) EM lookups looking for
        <dbroot, oid, partition> tuple to turn it into LBID,
        e.g. most bulk insertion meta info operations.
        The basis is boost::shared_managed_object where EMIndex is
        stored. Whilst it is not debug-friendly it allows to put a
        nested structs into shmem. EMIndex has 3 tiers. Top down description:
        vector of dbroots, map of oids to partition vectors, partition
        vectors that have EM indices.
        Separate EM methods now queries index before they do EM run.
        EMIndex has a separate shmem file with the fixed id
        MCS-shm-00060001.
This commit is contained in:
Roman Nozdrin
2022-03-30 08:57:05 +00:00
committed by Leonid Fedorov
parent fb3eaabd29
commit 4c26e4f960
25 changed files with 3498 additions and 459 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
versioning/BRM/dbrm.cpp
View File

@ -98,7 +98,7 @@ DBRM::DBRM(const DBRM& brm)
throw logic_error("DBRM: Don't use the copy constructor.");
}
DBRM::~DBRM() throw()
DBRM::~DBRM()
{
if (msgClient != NULL)
MessageQueueClientPool::releaseInstance(msgClient);
@ -461,7 +461,7 @@ int DBRM::markExtentsInvalid(const vector<LBID_t>& lbids,
}
template <typename T>
int DBRM::getExtentMaxMin(const LBID_t lbid, T& max, T& min, int32_t& seqNum) throw()
int DBRM::getExtentMaxMin(const LBID_t lbid, T& max, T& min, int32_t& seqNum)
{
#ifdef BRM_INFO
@ -489,7 +489,7 @@ int DBRM::getExtentMaxMin(const LBID_t lbid, T& max, T& min, int32_t& seqNum) th
}
}
int DBRM::getExtentCPMaxMin(const LBID_t lbid, CPMaxMin& cpMaxMin) throw()
int DBRM::getExtentCPMaxMin(const LBID_t lbid, CPMaxMin& cpMaxMin)
{
try
{
@ -4555,10 +4555,19 @@ void DBRM::invalidateUncommittedExtentLBIDs(execplan::CalpontSystemCatalog::SCN
setExtentsMaxMin(cpInfos);
}
template int DBRM::getExtentMaxMin<int128_t>(const LBID_t lbid, int128_t& max, int128_t& min,
int32_t& seqNum) throw();
size_t DBRM::EMIndexShmemSize()
{
return em->EMIndexShmemSize();
}
template int DBRM::getExtentMaxMin<int64_t>(const LBID_t lbid, int64_t& max, int64_t& min,
int32_t& seqNum) throw();
size_t DBRM::EMIndexShmemFree()
{
return em->EMIndexShmemFree();
}
template int DBRM::getExtentMaxMin<int128_t>(const LBID_t lbid, int128_t& max, int128_t& min,
int32_t& seqNum);
template int DBRM::getExtentMaxMin<int64_t>(const LBID_t lbid, int64_t& max, int64_t& min, int32_t& seqNum);
} // namespace BRM