June - September 2018

June-July 2018

• Found / reported bugs: CORE-5839, CORE-5846, CORE-5848, CORE-5848, CORE-5850, CORE-5858
• Created / modified QA tests for 21 tracker tickets
• Deep refactoring of batch script for watching dumps FB on Windows, validation of PDB, creating stack traces
• Detected very poor performance of SIMILAR TO in some border cases
• Investigated stack traces (POSIX): get number of threads that really do some work in a current moment
• Tested 3.0.4 by OLTP-EMUL with intensive usage of monitoring tables
• Various replication tests

• Created / modified QA tests for 26 tracker tickets
• OLTP-EMUL: benchmark of built-in vs trigger-based replications
• Regression in 4.0 was found by analyzing results of test for CORE-5167
• Adjusted tests for 4.0 due to introduction of new TIL = read consistency
• OLTP-EMUL: check for memory leaks - no leaks detected
• Discuss with Pavel Cisar current wishlist for fdb / fbtest

• Found / reported bugs: CORE-5907, CORE-5926, CORE-5931
• Created / modified QA tests for 9 tracker tickets
• Database shutdown can take too much time on SuperClassic because of new attachments coming
• OLTP-EMUL: 12h test on special build (validation of memory pool statistics)
• Insert bulk of records into GTT and force deletion of attachment lead to unnecessary UNDO
• OLTP-EMUL: continued refactoring
• Reading / discussing the TPC-C standard (v5, 2001): what can be ported into OLTP-EMUL

Moscow, Russian Federation