swh:1:snp:5115096b921df712aeb2a08114fede57fb3331fb
Revision df38c1ce660628f05b4686eeaf0b548295ce7967 authored by Mike Kolupaev on 22 April 2019, 15:17:45 UTC, committed by Facebook Github Bot on 22 April 2019, 15:20:35 UTC
Summary:
Introduce BlockBasedTableOptions::index_shortening to give users control on which key shortening techniques to be used in building index blocks. Before this patch, both separators and successor keys where shortened in indexes. With this patch, the default is set to kShortenSeparators to only shorten the separators. Since each index block has many separators and only one successor (last key), the change should not have negative impact on index block size. However it should prevent many unnecessary block loads where due to approximation introduced by shorted successor, seek would land us to the previous block and then fix it by moving to the next one.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5174

Differential Revision: D14884185

Pulled By: al13n321

fbshipit-source-id: 1b08bc8c03edcf09b6b8c16e9a7eea08ad4dd534
1 parent de76909
History
Tip revision: 19076c95aa2bcee55c26fcf0960cc844ad86ee9c authored by Levi Tamasi on 21 January 2021, 22:18:25 UTC
Update HISTORY.md for PR 7888 (#7890)
Tip revision: 19076c9
File Mode Size
buckifier
build_tools
cache
cmake
coverage
db
docs
env
examples
hdfs
include
java
memtable
monitoring
options
port
table
third-party
tools
util
utilities
.clang-format -rw-r--r-- 138 bytes
.gitignore -rw-r--r-- 740 bytes
.lgtm.yml -rw-r--r-- 67 bytes
.travis.yml -rw-r--r-- 3.4 KB
AUTHORS -rw-r--r-- 322 bytes
CMakeLists.txt -rw-r--r-- 35.9 KB
CODE_OF_CONDUCT.md -rw-r--r-- 249 bytes
CONTRIBUTING.md -rw-r--r-- 706 bytes
COPYING -rw-r--r-- 17.7 KB
DEFAULT_OPTIONS_HISTORY.md -rw-r--r-- 1.5 KB
DUMP_FORMAT.md -rw-r--r-- 763 bytes
HISTORY.md -rw-r--r-- 76.8 KB
INSTALL.md -rw-r--r-- 7.5 KB
LANGUAGE-BINDINGS.md -rw-r--r-- 1.1 KB
LICENSE.Apache -rw-r--r-- 11.1 KB
LICENSE.leveldb -rw-r--r-- 1.5 KB
Makefile -rw-r--r-- 66.6 KB
README.md -rw-r--r-- 1.8 KB
ROCKSDB_LITE.md -rw-r--r-- 1.0 KB
TARGETS -rw-r--r-- 26.8 KB
USERS.md -rw-r--r-- 5.6 KB
Vagrantfile -rw-r--r-- 1017 bytes
WINDOWS_PORT.md -rw-r--r-- 12.5 KB
appveyor.yml -rw-r--r-- 436 bytes
defs.bzl -rw-r--r-- 1.1 KB
issue_template.md -rw-r--r-- 243 bytes
src.mk -rw-r--r-- 30.1 KB
thirdparty.inc -rw-r--r-- 7.8 KB

README.md

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