Yanqin Jin 9aa1b1dc19 Hack to load OPTIONS file for read_amp_bytes_per_bit (#7659) ... Summary: A temporary hack to work around a bug in 6.10, 6.11, 6.12, 6.13 and 6.14. The bug will write out 8 bytes to OPTIONS file from the starting address of BlockBasedTableOptions.read_amp_bytes_per_bit which is actually a uint32. Consequently, the value of read_amp_bytes_per_bit written in the OPTIONS file is wrong. From 6.15, RocksDB will try to parse the read_amp_bytes_per_bit from OPTIONS file as a uint32. To be able to load OPTIONS file generated by affected releases before the fix, we need to manually parse read_amp_bytes_per_bit with this hack. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7659 Test Plan: Generate a db with current 6.14.fb (head at b6db05dbb5). Maybe use db_stress. Checkout this PR, run ``` ~/rocksdb/ldb --db=. --try_load_options --ignore_unknown_options idump --count_only ``` Expect success, and should not see ``` Failed: Invalid argument: Error parsing read_amp_bytes_per_bit:17179869184 ``` Also make check Reviewed By: anand1976 Differential Revision: D24954752 Pulled By: riversand963 fbshipit-source-id: c7b802fc3e52acd050a4fc1cd475016122234394		2020-11-13 11:52:50 -08:00
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cf_options.cc	Add options for integrated blob GC (#7661)	2020-11-12 18:58:44 -08:00
cf_options.h	Add options for integrated blob GC (#7661)	2020-11-12 18:58:44 -08:00
configurable.cc
configurable_helper.h
configurable_test.cc
configurable_test.h
customizable.cc
customizable_helper.h
customizable_test.cc
db_options.cc
db_options.h
options.cc	Add options for integrated blob GC (#7661)	2020-11-12 18:58:44 -08:00
options_helper.cc	Update option "allow_data_in_errors" in BuildOptions (#7665)	2020-11-12 22:09:17 -08:00
options_helper.h
options_parser.cc
options_parser.h
options_settable_test.cc	Update option "allow_data_in_errors" in BuildOptions (#7665)	2020-11-12 22:09:17 -08:00
options_test.cc	Hack to load OPTIONS file for read_amp_bytes_per_bit (#7659)	2020-11-13 11:52:50 -08:00