doc: complete dynamic test analysis for Issue #69#1
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Shining1101 wants to merge 116 commits intoShining1101:coo-consistency-checkfrom
Open
doc: complete dynamic test analysis for Issue #69#1Shining1101 wants to merge 116 commits intoShining1101:coo-consistency-checkfrom
Shining1101 wants to merge 116 commits intoShining1101:coo-consistency-checkfrom
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…salHistoryGenerator
If the index name mismatches, Deneva will create the table index buckets with a huge number 16777216 (defined by SYNTH_TABLE_SIZE). When each history is tested over, it takes long time to delete all index's bucket which causes DA workload perform low.
Upload English introductions about 3TS
…decrease rollback rate
Conflicts: contrib/deneva/unified_concurrency_control/alg_dli_identify_cycle.h contrib/deneva/unified_concurrency_control/alg_dli_identify_merge.h contrib/deneva/unified_concurrency_control/dli_identify_util.h contrib/deneva/unified_concurrency_control/txn_dli_identify.h contrib/deneva/unified_concurrency_control/util.h
Add file: 3TS-DAI-Tools.pdf
There is no unified definition of Data anomalies, which refers to the specific data operation mode that may violate the consistency of the database. Known data anomalies include Dirty Write, Dirty Read, Non-repeatable Read, Phantom, Read Skew and Write Skew, etc. In order to improve the efficiency of concurrency control algorithms, data anomalies are also used to define the isolation levels, because the weak isolation level can improve the efficiency of transaction processing systems. This paper systematically studies the data anomalies and the corresponding isolation levels. We report twenty-two new data anomalies that other papers have not reported, and all data anomalies are classified miraculously. Based on the classification of data anomalies, two new isolation levels system with different granularity are proposed, which reveals the rule of defining isolation levels based on data anomalies and makes the cognition of data anomalies and isolation levels more concise.
Update the links to the newest developing branches.
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@犀牛鸟小助手 文档已全部补全，请审核！ |
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已完成 Issue Tencent#69 全部文档任务：