Merge remote-tracking branch 'origin/0.6.0' into spell_error

*.lo

*.tar.gz

*.log

.coverage

*.pyc

cov_html/

# temp

shards/all_in_one_with_mysql/metadata/

language: cpp

sudo: required

dist: bionic

cache:

  directories:

    - $HOME/.ccache

addons:

  apt:

    update: true

before_install:

  - source ci/travis/before-install.sh

install:

  - source $TRAVIS_BUILD_DIR/ci/travis/install_dependency.sh

script:

  - $TRAVIS_BUILD_DIR/ci/travis/travis_build.sh

# Changelog

Please mark all change in change log and use the ticket from JIRA.

# Milvus 0.6.0 (TODO)

## Bug

- \#228 - memory usage increased slowly during searching vectors

- \#246 - Exclude src/external folder from code coverage for jenkin ci

- \#248 - Reside src/external in thirdparty

- \#316 - Some files not merged after vectors added

- \#327 - Search does not use GPU when index type is FLAT

- \#331 - Add exception handle when search fail

- \#340 - Test cases run failed on 0.6.0

- \#353 - Rename config.h.in to version.h.in

- \#374 - sdk_simple return empty result

- \#377 - Create partition success if tag name only contains spaces

- \#397 - sdk_simple return incorrect result

- \#399 - Create partition should be failed if partition tag existed

- \#412 - Message returned is confused when partition created with null partition name

- \#416 - Drop the same partition success repeatally

- \#440 - Query API in customization still uses old version

- \#440 - Server cannot startup with gpu_resource_config.enable=false in GPU version

- \#458 - Index data is not compatible between 0.5 and 0.6

- \#465 - Server hang caused by searching with nsg index

- \#485 - Increase code coverage rate

- \#486 - gpu no usage during index building

- \#497 - CPU-version search performance decreased

- \#504 - The code coverage rate of core/src/scheduler/optimizer is too low

- \#509 - IVF_PQ index build trapped into dead loop caused by invalid params

- \#513 - Unittest DELETE_BY_RANGE sometimes failed

- \#523 - Erase file data from cache once the file is marked as deleted

- \#527 - faiss benchmark not compatible with faiss 1.6.0

- \#530 - BuildIndex stop when do build index and search simultaneously

- \#532 - assigin value to `table_name` from confest shell

- \#533 - NSG build failed with MetricType Inner Product

- \#543 - client raise exception in shards when search results is empty

- \#545 - Avoid dead circle of build index thread when error occurs

- \#547 - NSG build failed using GPU-edition if set gpu_enable false

- \#552 - Server down during building index_type: IVF_PQ using GPU-edition

- \#561 - Milvus server should report exception/error message or terminate on mysql metadata backend error

- \#579 - Build index hang in GPU version when gpu_resources disabled

- \#599 - Build index log is incorrect

- \#602 - Optimizer specify wrong gpu_id

- \#606 - No log generated during building index with CPU

## Feature

- \#12 - Pure CPU version for Milvus

- \#77 - Support table partition

- \#127 - Support new Index type IVFPQ

- \#226 - Experimental shards middleware for Milvus

- \#227 - Support new index types SPTAG-KDT and SPTAG-BKT

- \#346 - Support build index with multiple gpu

- \#420 - Update shards merge part to match v0.5.3

- \#488 - Add log in scheduler/optimizer

- \#502 - C++ SDK support IVFPQ and SPTAG

- \#560 - Add version in server config file

- \#605 - Print more messages when server start

## Improvement

- \#255 - Add ivfsq8 test report detailed version

- \#260 - C++ SDK README

- \#266 - Rpc request source code refactor

- \#274 - Logger the time cost during preloading data

- \#275 - Rename C++ SDK IndexType

- \#284 - Change C++ SDK to shared library

- \#306 - Use int64 for all config integer

- \#310 - Add Q&A for 'protocol https not supported or disable in libcurl' issue

- \#314 - add Find FAISS in CMake

- \#322 - Add option to enable / disable prometheus

- \#354 - Build migration scripts into milvus docker image

- \#358 - Add more information in build.sh and install.md

- \#404 - Add virtual method Init() in Pass abstract class

- \#409 - Add a Fallback pass in optimizer

- \#433 - C++ SDK query result is not easy to use

- \#449 - Add ShowPartitions example for C++ SDK

- \#470 - Small raw files should not be build index

- \#584 - Intergrate internal FAISS

- \#611 - Remove MILVUS_CPU_VERSION

## Task

# Milvus 0.5.3 (2019-11-13)

## Bug

![LICENSE](https://img.shields.io/badge/license-Apache--2.0-brightgreen)

![Language](https://img.shields.io/badge/language-C%2B%2B-blue)

[![codebeat badge](https://codebeat.co/badges/e030a4f6-b126-4475-a938-4723d54ec3a7?style=plastic)](https://codebeat.co/projects/github-com-jinhai-cn-milvus-master)

![Release](https://img.shields.io/badge/release-v0.5.2-yellowgreen)

![Release](https://img.shields.io/badge/release-v0.5.3-yellowgreen)

![Release_date](https://img.shields.io/badge/release%20date-November-yellowgreen)

[![codecov](https://codecov.io/gh/milvus-io/milvus/branch/master/graph/badge.svg)](https://codecov.io/gh/milvus-io/milvus)

[中文版](README_CN.md) | [日本語版](README_JP.md)

Milvus provides stable [Python](https://github.com/milvus-io/pymilvus), [Java](https://github.com/milvus-io/milvus-sdk-java) and [C++](https://github.com/milvus-io/milvus/tree/master/core/src/sdk) APIs. 

Keep up-to-date with newest releases and latest updates by reading Milvus [release notes](https://www.milvus.io/docs/en/release/v0.5.2/).

Keep up-to-date with newest releases and latest updates by reading Milvus [release notes](https://www.milvus.io/docs/en/release/v0.5.3/).

## Get started

To connect with other users and contributors, welcome to join our [Slack channel](https://join.slack.com/t/milvusio/shared_invite/enQtNzY1OTQ0NDI3NjMzLWNmYmM1NmNjOTQ5MGI5NDhhYmRhMGU5M2NhNzhhMDMzY2MzNDdlYjM5ODQ5MmE3ODFlYzU3YjJkNmVlNDQ2ZTk). 

## Thanks

## Contributors

We greatly appreciate the help of the following people.

Below is a list of Milvus contributors. We greatly appreciate your contributions!

- [akihoni](https://github.com/akihoni) provided the CN version of README, and found a broken link in the doc.

- [goodhamgupta](https://github.com/goodhamgupta) fixed a filename typo in the bootcamp doc.

- [erdustiggen](https://github.com/erdustiggen) changed from std::cout to LOG for error messages, and fixed a clang format issue as well as some grammatical errors.

## Resources

- [Milvus bootcamp](https://github.com/milvus-io/bootcamp)

- [Milvus test reports](https://github.com/milvus-io/milvus/tree/master/docs)

- [Milvus FAQ](https://www.milvus.io/docs/en/faq/operational_faq/)

- [Milvus Medium](https://medium.com/@milvusio)

- [Milvus CSDN](https://zilliz.blog.csdn.net/)

## License

[Apache License 2.0](LICENSE)

![LICENSE](https://img.shields.io/badge/license-Apache--2.0-brightgreen)

![Language](https://img.shields.io/badge/language-C%2B%2B-blue)

[![codebeat badge](https://codebeat.co/badges/e030a4f6-b126-4475-a938-4723d54ec3a7?style=plastic)](https://codebeat.co/projects/github-com-jinhai-cn-milvus-master)

![Release](https://img.shields.io/badge/release-v0.5.2-orange)

![Release](https://img.shields.io/badge/release-v0.5.3-yellowgreen)

![Release_date](https://img.shields.io/badge/release_date-October-yellowgreen)

[![codecov](https://codecov.io/gh/milvus-io/milvus/branch/master/graph/badge.svg)](https://codecov.io/gh/milvus-io/milvus)

# 欢迎来到 Milvus

若要了解 Milvus 详细介绍和整体架构，请访问 [Milvus 简介](https://www.milvus.io/docs/zh-CN/aboutmilvus/overview/)。

Milvus 提供稳定的 [Python](https://github.com/milvus-io/pymilvus)、[Java](https://github.com/milvus-io/milvus-sdk-java) 以及 C++ 的 API 接口。

Milvus 提供稳定的 [Python](https://github.com/milvus-io/pymilvus)、[Java](https://github.com/milvus-io/milvus-sdk-java) 以及[C++](https://github.com/milvus-io/milvus/tree/master/core/src/sdk) 的 API 接口。

通过 [版本发布说明](https://milvus.io/docs/zh-CN/release/v0.5.2/) 获取最新版本的功能和更新。

通过 [版本发布说明](https://milvus.io/docs/zh-CN/release/v0.5.3/) 获取最新版本的功能和更新。

## 开始使用 Milvus

- [akihoni](https://github.com/akihoni) 提供了中文版 README，并发现了 README 中的无效链接。

- [goodhamgupta](https://github.com/goodhamgupta) 发现并修正了在线训练营文档中的文件名拼写错误。

- [erdustiggen](https://github.com/erdustiggen) 将错误信息里的 std::cout 修改为 LOG，修正了一个 Clang 格式问题和一些语法错误。

## 相关链接

- [Milvus 在线训练营](https://github.com/milvus-io/bootcamp)

- [Milvus 测试报告](https://github.com/milvus-io/milvus/tree/master/docs)

- [Milvus 常见问题](https://www.milvus.io/docs/zh-CN/faq/operational_faq/)

- [Milvus Medium](https://medium.com/@milvusio)

- [Milvus CSDN](https://zilliz.blog.csdn.net/)

## 许可协议

[Apache 许可协议2.0版](https://github.com/milvus-io/milvus/blob/master/LICENSE)