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openGauss
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Apr 21, 2023 · 2 min read · Non-Uniform Memory Access (NUMA) is a computer memory design used in multiprocessing, where the memory access time depends on the memory location relative to the processor. Under NUMA, a processor can take advantage of NUMA by preferring to access it...
Join discussionApr 21, 2023 · 5 min read · openGauss is based on PostgreSQL, which does not have a built-in storage engine adapter, such as MySQL handlerton. To enable the integration of the MOT storage engine into openGauss, we have leveraged and extended the existing Foreign Data Wrapper (F...
Join discussionApr 21, 2023 · 5 min read · The Concurrency Control Module (CC Module for short) provides all the transactional requirements for the Main Memory Engine. The primary objective of the CC Module is to provide the Main Memory Engine with support for various isolation levels. Optimi...
Join discussionApr 21, 2023 · 1 min read · Even though MOT is fully ACID-compliant (as described in the section), not all isolation levels are supported in openGauss 1.0. The following table describes all isolation levels, as well as what is and what is not supported by MOT. Table 1 Isolation...
Join discussionApr 21, 2023 · 1 min read · SILO in its basic algorithm flow outperformed many other ACID-compliant OCCs that we tested in our research experiments. However, in order to make it a product-grade mechanism, we had to enhance it with many essential functionalities that were missin...
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