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Posted to dev@pegasus.apache.org by GitBox <gi...@apache.org> on 2020/09/24 12:01:17 UTC

[GitHub] [incubator-pegasus] neverchanje opened a new pull request #609: doc: update readme and remove xiaomi refs

neverchanje opened a new pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609


   


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[GitHub] [incubator-pegasus] acelyc111 merged pull request #609: docs: update readme and remove xiaomi refs

Posted by GitBox <gi...@apache.org>.
acelyc111 merged pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609


   


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[GitHub] [incubator-pegasus] zhangyifan27 commented on a change in pull request #609: docs: update readme and remove xiaomi refs

Posted by GitBox <gi...@apache.org>.
zhangyifan27 commented on a change in pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609#discussion_r494790236



##########
File path: README.md
##########
@@ -7,31 +7,23 @@
 
 ![pegasus-logo](docs/media-img/pegasus-logo.png)
 
-[![Build Status](https://travis-ci.org/XiaoMi/pegasus.svg?branch=master)](https://travis-ci.org/XiaoMi/pegasus)
+[![Build Status](https://travis-ci.org/apache/incubator-pegasus.svg?branch=master)](https://travis-ci.org/apache/incubator-pegasus)
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
-[![Releases](https://img.shields.io/github/release/xiaomi/pegasus.svg)][github-release]
+[![Releases](https://img.shields.io/github/release/apache/incubator-pegasus.svg)][github-release]
 
 **Note**: The `master` branch may be in an *unstable or even broken state* during development.
 Please use [releases][github-release] instead of the `master` branch in order to get stable binaries.
 
-Pegasus is a distributed key-value storage system which is designed to be:
+Apache Pegasus is a distributed key-value storage system which is designed to be:
 
 - **horizontally scalable** distributed using hash-based partitioning

Review comment:
       missing `:` here.

##########
File path: README.md
##########
@@ -40,43 +32,51 @@ Apart from the performance requirements, we also need a storage system
 to ensure multiple-level data safety and support fast data migration
 between data centers, automatic load balancing, and online partition split.
 
-After investigating the existing storage systems in the open source world,
-we could hardly find a suitable solution to satisfy all the requirements.
-So the journey of Pegasus begins.
+## Features
+
+- **Persistence of data**: Each write is replicated three-way to different ReplicaServers before responding to the client. Using PacificA protocol, Pegasus has the ability for strong consistent replication and membership changes.
+
+- **Automatic load balancing over ReplicaServers**: Load balancing is a builtin function of MetaServer, which manages the distribution of replicas. When the cluster is in an inbalance state, the administrator can invoke a simple rebalance command that automatically schedules the replica migration.
+
+- **Cold Backup**: Pegasus supports an extensible backup and restore mechanism to ensure data safety. The location of snapshot could be a distributed filesystem like HDFS or local filesystem. The snapshot storing in the filesystem can be further used for analysis based on [pegasus-spark](https://github.com/pegasus-kv/pegasus-spark).
+
+- **Eventually-consistent intra-datacenter replication**: This is a feature we called *duplication*. It allows a change made in the local cluster accesible after a short time period by the remote cluster. It help achieving higher availability of your service and gaining better performance by accessing only local cluster.
 
 ## To start using Pegasus
 
 See our documentation on [Pegasus Website][website].
 
+## Client drivers
+
+Pegasus has support for serveral languages:
+
+- [Java](https://github.com/xiaomi/pegasus-java-client) (The most actively-developed)
+- [C++](https://github.com/apache/incubator-pegasus/blob/master/src/include/pegasus/client.h)
+- [Go](https://github.com/xiaomi/pegasus-go-client)
+- [Python](https://github.com/xiaomi/pegasus-python-client)
+- [Node.js](https://github.com/xiaomi/pegasus-nodejs-client)
+- [Scala](https://github.com/xiaomi/pegasus-scala-client)
+
+## Contact us
+
+- Send mails to Apache Pegasus dev mailing list: dev@pegasus.apache.org. This is officially where topics around development, community, and problems are discussed. Please remember to subsribe the mail list via dev-subscribe@pegasus.apache.org.

Review comment:
        > This is officially where topics around development, community, and problems are discussed.
   
   There is something wrong with this sentence.
   

##########
File path: README.md
##########
@@ -40,43 +32,51 @@ Apart from the performance requirements, we also need a storage system
 to ensure multiple-level data safety and support fast data migration
 between data centers, automatic load balancing, and online partition split.
 
-After investigating the existing storage systems in the open source world,
-we could hardly find a suitable solution to satisfy all the requirements.
-So the journey of Pegasus begins.
+## Features
+
+- **Persistence of data**: Each write is replicated three-way to different ReplicaServers before responding to the client. Using PacificA protocol, Pegasus has the ability for strong consistent replication and membership changes.
+
+- **Automatic load balancing over ReplicaServers**: Load balancing is a builtin function of MetaServer, which manages the distribution of replicas. When the cluster is in an inbalance state, the administrator can invoke a simple rebalance command that automatically schedules the replica migration.
+
+- **Cold Backup**: Pegasus supports an extensible backup and restore mechanism to ensure data safety. The location of snapshot could be a distributed filesystem like HDFS or local filesystem. The snapshot storing in the filesystem can be further used for analysis based on [pegasus-spark](https://github.com/pegasus-kv/pegasus-spark).
+
+- **Eventually-consistent intra-datacenter replication**: This is a feature we called *duplication*. It allows a change made in the local cluster accesible after a short time period by the remote cluster. It help achieving higher availability of your service and gaining better performance by accessing only local cluster.
 
 ## To start using Pegasus
 
 See our documentation on [Pegasus Website][website].
 
+## Client drivers
+
+Pegasus has support for serveral languages:
+
+- [Java](https://github.com/xiaomi/pegasus-java-client) (The most actively-developed)

Review comment:
       I thinsk `The most actively-developed` is unnecessary.




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[GitHub] [incubator-pegasus] acelyc111 merged pull request #609: docs: update readme and remove xiaomi refs

Posted by GitBox <gi...@apache.org>.
acelyc111 merged pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609


   


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[GitHub] [incubator-pegasus] acelyc111 commented on a change in pull request #609: docs: update readme and remove xiaomi refs

Posted by GitBox <gi...@apache.org>.
acelyc111 commented on a change in pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609#discussion_r494720720



##########
File path: README.md
##########
@@ -40,43 +32,51 @@ Apart from the performance requirements, we also need a storage system
 to ensure multiple-level data safety and support fast data migration
 between data centers, automatic load balancing, and online partition split.
 
-After investigating the existing storage systems in the open source world,
-we could hardly find a suitable solution to satisfy all the requirements.
-So the journey of Pegasus begins.
+## Features
+
+- **Persistence of data**: Each write is replicated three-way to different ReplicaServers before responding to the client. Using PacificA protocol, Pegasus has the ability for strong consistent replication and membership changes.
+
+- **Automatic load balancing over ReplicaServers**: Load balancing is a builtin function of MetaServer, which manages the distribution of replicas. When the cluster is in an inbalance state, the administrator can invoke a rebalance command that automatically schedules the replica migration.
+
+- **Cold Backup**. Pegasus supports an extensible backup and restore mechanism to ensure data safety. The location of snapshot could be a distributed filesystem like HDFS or local filesystem. The snapshot storing in the filesystem can be further used for analysis based on [pegasus-spark](https://github.com/pegasus-kv/pegasus-spark).

Review comment:
       Unify to use `:` or `.`




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[GitHub] [incubator-pegasus] acelyc111 commented on a change in pull request #609: docs: update readme and remove xiaomi refs

Posted by GitBox <gi...@apache.org>.
acelyc111 commented on a change in pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609#discussion_r494720720



##########
File path: README.md
##########
@@ -40,43 +32,51 @@ Apart from the performance requirements, we also need a storage system
 to ensure multiple-level data safety and support fast data migration
 between data centers, automatic load balancing, and online partition split.
 
-After investigating the existing storage systems in the open source world,
-we could hardly find a suitable solution to satisfy all the requirements.
-So the journey of Pegasus begins.
+## Features
+
+- **Persistence of data**: Each write is replicated three-way to different ReplicaServers before responding to the client. Using PacificA protocol, Pegasus has the ability for strong consistent replication and membership changes.
+
+- **Automatic load balancing over ReplicaServers**: Load balancing is a builtin function of MetaServer, which manages the distribution of replicas. When the cluster is in an inbalance state, the administrator can invoke a rebalance command that automatically schedules the replica migration.
+
+- **Cold Backup**. Pegasus supports an extensible backup and restore mechanism to ensure data safety. The location of snapshot could be a distributed filesystem like HDFS or local filesystem. The snapshot storing in the filesystem can be further used for analysis based on [pegasus-spark](https://github.com/pegasus-kv/pegasus-spark).

Review comment:
       Unify to use `:` or `.`




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[GitHub] [incubator-pegasus] zhangyifan27 commented on a change in pull request #609: docs: update readme and remove xiaomi refs

Posted by GitBox <gi...@apache.org>.
zhangyifan27 commented on a change in pull request #609:
URL: https://github.com/apache/incubator-pegasus/pull/609#discussion_r494790236



##########
File path: README.md
##########
@@ -7,31 +7,23 @@
 
 ![pegasus-logo](docs/media-img/pegasus-logo.png)
 
-[![Build Status](https://travis-ci.org/XiaoMi/pegasus.svg?branch=master)](https://travis-ci.org/XiaoMi/pegasus)
+[![Build Status](https://travis-ci.org/apache/incubator-pegasus.svg?branch=master)](https://travis-ci.org/apache/incubator-pegasus)
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
-[![Releases](https://img.shields.io/github/release/xiaomi/pegasus.svg)][github-release]
+[![Releases](https://img.shields.io/github/release/apache/incubator-pegasus.svg)][github-release]
 
 **Note**: The `master` branch may be in an *unstable or even broken state* during development.
 Please use [releases][github-release] instead of the `master` branch in order to get stable binaries.
 
-Pegasus is a distributed key-value storage system which is designed to be:
+Apache Pegasus is a distributed key-value storage system which is designed to be:
 
 - **horizontally scalable** distributed using hash-based partitioning

Review comment:
       missing `:` here.

##########
File path: README.md
##########
@@ -40,43 +32,51 @@ Apart from the performance requirements, we also need a storage system
 to ensure multiple-level data safety and support fast data migration
 between data centers, automatic load balancing, and online partition split.
 
-After investigating the existing storage systems in the open source world,
-we could hardly find a suitable solution to satisfy all the requirements.
-So the journey of Pegasus begins.
+## Features
+
+- **Persistence of data**: Each write is replicated three-way to different ReplicaServers before responding to the client. Using PacificA protocol, Pegasus has the ability for strong consistent replication and membership changes.
+
+- **Automatic load balancing over ReplicaServers**: Load balancing is a builtin function of MetaServer, which manages the distribution of replicas. When the cluster is in an inbalance state, the administrator can invoke a simple rebalance command that automatically schedules the replica migration.
+
+- **Cold Backup**: Pegasus supports an extensible backup and restore mechanism to ensure data safety. The location of snapshot could be a distributed filesystem like HDFS or local filesystem. The snapshot storing in the filesystem can be further used for analysis based on [pegasus-spark](https://github.com/pegasus-kv/pegasus-spark).
+
+- **Eventually-consistent intra-datacenter replication**: This is a feature we called *duplication*. It allows a change made in the local cluster accesible after a short time period by the remote cluster. It help achieving higher availability of your service and gaining better performance by accessing only local cluster.
 
 ## To start using Pegasus
 
 See our documentation on [Pegasus Website][website].
 
+## Client drivers
+
+Pegasus has support for serveral languages:
+
+- [Java](https://github.com/xiaomi/pegasus-java-client) (The most actively-developed)
+- [C++](https://github.com/apache/incubator-pegasus/blob/master/src/include/pegasus/client.h)
+- [Go](https://github.com/xiaomi/pegasus-go-client)
+- [Python](https://github.com/xiaomi/pegasus-python-client)
+- [Node.js](https://github.com/xiaomi/pegasus-nodejs-client)
+- [Scala](https://github.com/xiaomi/pegasus-scala-client)
+
+## Contact us
+
+- Send mails to Apache Pegasus dev mailing list: dev@pegasus.apache.org. This is officially where topics around development, community, and problems are discussed. Please remember to subsribe the mail list via dev-subscribe@pegasus.apache.org.

Review comment:
        > This is officially where topics around development, community, and problems are discussed.
   
   There is something wrong with this sentence.
   

##########
File path: README.md
##########
@@ -40,43 +32,51 @@ Apart from the performance requirements, we also need a storage system
 to ensure multiple-level data safety and support fast data migration
 between data centers, automatic load balancing, and online partition split.
 
-After investigating the existing storage systems in the open source world,
-we could hardly find a suitable solution to satisfy all the requirements.
-So the journey of Pegasus begins.
+## Features
+
+- **Persistence of data**: Each write is replicated three-way to different ReplicaServers before responding to the client. Using PacificA protocol, Pegasus has the ability for strong consistent replication and membership changes.
+
+- **Automatic load balancing over ReplicaServers**: Load balancing is a builtin function of MetaServer, which manages the distribution of replicas. When the cluster is in an inbalance state, the administrator can invoke a simple rebalance command that automatically schedules the replica migration.
+
+- **Cold Backup**: Pegasus supports an extensible backup and restore mechanism to ensure data safety. The location of snapshot could be a distributed filesystem like HDFS or local filesystem. The snapshot storing in the filesystem can be further used for analysis based on [pegasus-spark](https://github.com/pegasus-kv/pegasus-spark).
+
+- **Eventually-consistent intra-datacenter replication**: This is a feature we called *duplication*. It allows a change made in the local cluster accesible after a short time period by the remote cluster. It help achieving higher availability of your service and gaining better performance by accessing only local cluster.
 
 ## To start using Pegasus
 
 See our documentation on [Pegasus Website][website].
 
+## Client drivers
+
+Pegasus has support for serveral languages:
+
+- [Java](https://github.com/xiaomi/pegasus-java-client) (The most actively-developed)

Review comment:
       I thinsk `The most actively-developed` is unnecessary.




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