Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/6773

Reviewed By: siying

Differential Revision: D21310229

Pulled By: pdillinger

fbshipit-source-id: c0d52d0c51121d307d7d5c1374abc7bf78b0c4cf

Summary:
improved Vocabulary
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5877

Differential Revision: D17753217

Pulled By: anand1976

fbshipit-source-id: f255418534297e537a2735f0a0546c724b8f7c70

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5134

Differential Revision: D14719068

Pulled By: siying

fbshipit-source-id: c09a544f06ff414dbe2f90792aaf2bb5b8550bee

Summary:
As discussed with thatsafunnyname [here](https://discuss.lgtm.com/t/c-c-lang-missing-for-facebook-rocksdb/1079): this configuration enables C/C++ analysis for RocksDB on LGTM.com.

The initial commit will contain a build command (simple `make`) that previously resulted in a build error. The build log will then be available on LGTM.com for you to investigate (if you like). I'll immediately add a second commit to this PR to correct the build command to `make static_lib`, which worked when I tested it earlier today.

If you like you can also enable automatic code review in pull requests. This will alert you to any new code issues before they actually get merged into `master`. Here's an example of how that works for the AMPHTML project: https://github.com/ampproject/amphtml/pull/13060. You can enable it yourself here: https://lgtm.com/projects/g/facebook/rocksdb/ci/.

I'll also add a badge to your README.md in a separate commit — feel free to remove that from this PR if you don't like it.

(Full disclosure: I'm part of the LGTM.com team 🙂. Ping samlanning)
Closes https://github.com/facebook/rocksdb/pull/4058

Differential Revision: D8648410

Pulled By: ajkr

fbshipit-source-id: 98d55fc19cff1b07268ac8425b63e764806065aa

Summary:
From #3417 and after talking to both GitHub and our open source legal team, the recommended approach was to explicitly state the dual-license in the readme.

Changing the license files to accommodate the auto-detection is too much of a pain, would involve editing every code file header.
Closes https://github.com/facebook/rocksdb/pull/3541

Differential Revision: D7171111

Pulled By: gfosco

fbshipit-source-id: 0ee7b134446015228249efe991fa5e76526ca0b0

Summary: Closes https://github.com/facebook/rocksdb/pull/3356

Differential Revision: D6706909

Pulled By: sagar0

fbshipit-source-id: 6e4757d9eceab3e8a6c1b83c1be4108e86576cb2

appveyor badge to show master branch

Update README.md to include appveyor badge

typo

Moved doc/index.html to wiki

Summary:
This diff is addressing multiple things with a single goal -- to make RocksDB easier to use:
* Add some functions to Options that make RocksDB easier to tune.
* Add example code for both simple RocksDB and RocksDB with Column Families.
* Rewrite our README.md

Regarding Options, I took a stab at something we talked about for a long time:
* https://www.facebook.com/groups/rocksdb.dev/permalink/563169950448190/

I added functions:
* IncreaseParallelism() -- easy, increases the thread pool and max_background_compactions
* OptimizeLevelStyleCompaction(memtable_memory_budget) -- the easiest way to optimize rocksdb for less stalls with level style compaction. This is very likely not ideal configuration. Feel free to suggest improvements. I used some of Mark's suggestions from here: https://github.com/facebook/rocksdb/issues/54
* OptimizeUniversalStyleCompaction(memtable_memory_budget) -- optimize for universal compaction.

Test Plan: compiled rocksdb. ran examples.

Reviewers: dhruba, MarkCallaghan, haobo, sdong, yhchiang

Reviewed By: dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D18621