Re: [VOTE] Release Apache Amaterasu (incubating) 0.2.0 (rc3)

[Yaniv Rodenski]

Hi,

I've removed the md5's, and will update the Amaterasu release procedure
accordingly.

Cheers,
Yaniv

On Fri, Jun 15, 2018 at 1:04 AM, Henk P. Penning  wrote:

> On Thu, 14 Jun 2018, Yaniv Rodenski wrote:
>
> Date: Thu, 14 Jun 2018 16:32:19 +0200
>> From: Yaniv Rodenski 
>> To: general@incubator.apache.org
>> Subject: [VOTE] Release Apache Amaterasu (incubating) 0.2.0 (rc3)
>>
>
>   Please remove the .md5's ; see policy :
>
> https://www.apache.org/dev/release-distribution#sigs-and-sums
>
>   This does NOT affect the VOTE ; please continue ...
>
>   Regards,
>
>   Henk Penning
>
>    _
> Henk P. Penning, ICT-beta R Uithof MG-403_/ \_
> Faculty of Science, Utrecht UniversityT +31 30 253 4106 / \_/ \
> Leuvenlaan 4, 3584CE Utrecht, NL  F +31 30 253 4553 \_/ \_/
> http://www.staff.science.uu.nl/~penni101/ M penn...@uu.nl \_/
>
>
> The Apache Amaterasu (incubating) community has voted on and approved a
>> proposal to release Apache Amaterasu 0.2.0-rc3.
>>
>> We now kindly request that the Incubator PMC members review and vote on
>> this incubator release candidate.
>>
>> Apache Amaterasu is a Configuration Managment and Deployment Framework for
>> Big Data Pipelines.
>>
>> The vote thread is at:
>> http://mail-archives.apache.org/mod_mbox/amaterasu-dev/20180
>> 5.mbox/%3CCAKm_
>> 3C0qT7pYPjZm_C4JRiruQasW6be2F1xLx%2Bf2zfQvxBWJTA%40mail.gmail.com%3E
>>
>> and the result is at:
>> http://mail-archives.apache.org/mod_mbox/amaterasu-dev/20180
>> 6.mbox/%3CCAKm_3C1qYgM9%3DaOxt7JNo4R23UvoeP%3DhUi7GQpiVEc5Ad
>> vAwMg%40mail.gmail.com%3E
>>
>>
>> This is the first incubator release and it includes much-awaited
>> improvements such as YARN support, PySpark and SparkSQL support and
>> stability improvements.
>>
>> All distribution packages, including signatures, digests, etc. can be
>> found at:
>>
>> https://dist.apache.org/repos/dist/dev/incubator/amaterasu/0.2.0rc3/
>>
>>
>> This release has been signed with PGP key corresponding to
>> ya...@apache.org, which is included in the repository's KEYS file (
>> https://dist.apache.org/repos/dist/dev/incubator/amaterasu/KEYS).
>>
>> The release candidate has been tagged in git with
>> version-0.2.0-incubating-rc3:
>> https://github.com/apache/incubator-amaterasu/releases/tag/
>> version-0.2.0-incubating-rc3
>>
>> Please review and vote. The vote will be open for at least 72 hours.
>>
>> Thank you very much,
>> Yaniv
>>
>>
> -
> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org
> For additional commands, e-mail: general-h...@incubator.apache.org
>
>


-- 
Yaniv Rodenski

+61 477 778 405
ya...@shinto.io

[ANNOUNCE] Apache SINGA (incubating) 1.2.0 released

[Moaz Reyad]

We are pleased to announce that SINGA (incubating) 1.2.0 is released.

SINGA is a general distributed deep learning platform for training big deep
learning models over large datasets. It is designed with an intuitive
programming model based on the layer abstraction. SINGA supports a wide
variety of popular deep learning models.

The release is available at:
http://singa.apache.org/en/downloads.html

The main features of this release include:

-Implement autograd (currently support MLP model)
-Upgrade PySinga to support Python 3
-Improve the Tensor class with the stride field
-Upgrade cuDNN from V5 to V7
-Add VGG, Inception V4, ResNet, and DenseNet for ImageNet classification
-Create alias for conda packages
-Complete documentation in Chinese
-Add instructions for running SINGA on Windows
-Update the compilation, CI

We look forward to hearing your feedback, suggestions and contributions to
the project.

On behalf of the SINGA team,
Moaz Reyad

Re: [VOTE] Pulsar Release 2.0.1-incubating Candidate 2

[Matteo Merli]

Hi WIllem,

the 2.0.1 candidate was already being voted on the dev@pulsar list when the
comments on 1.22.1 release were made here on incubator list, otherwise we
would have included the changes.

2.0.1 is a patch release in which we are trying to fix some issues reported
by
users in the 2.0.01-rc1 release from a couple of weeks back.

Since at least a couple of issues were impacting users, we were trying to
get
a fix out ASAP. In particular we found packaging related issues that
impacted:
 * Pulsar python client lib
 * Pulsar proxy startup

Master branch is already set on 2.1 release and we just applied few commits
to fix the non-functioning features.

The idea was to fix netty packaging and protobuf license headers for 2.1,
for
which we plan to start the release process by next week.

Matteo

On Wed, Jun 13, 2018 at 6:24 PM Willem Jiang  wrote:

> Hi Matto,
>
> I just checked the source code, the License header issue is still there.
> pulsar-common/src/main/java/org/apache/pulsar/common/util/
> protobuf/ByteBufCoded{Input,Output}Stream.java
>
> There are still bunch different version of netty jars in the lib directory.
>
> My suggestion is we need fix these issues that we found in the last vote
> before starting a new vote.
>
>
> Willem Jiang
>
> Twitter: willemjiang
> Weibo: 姜宁willem
>
> On Tue, Jun 12, 2018 at 6:00 AM, Matteo Merli  wrote:
>
> > This is the second release candidate for Apache Pulsar, version
> > 2.0.1-incubating.
> >
> > Link to the vote on dev@pulsar list
> > https://lists.apache.org/thread.html/620813d66d43a43680d3afd587e72f
> > 0d6f9607f1566aa88ef73d359c@%3Cdev.pulsar.apache.org%3E
> >
> > Pulsar is a highly scalable, low latency messaging platform running on
> > commodity hardware.
> > It provides simple pub-sub semantics over topics, guaranteed
> at-least-once
> > delivery of
> > messages, automatic cursor management for subscribers, and
> geo-replication.
> >
> > This is a patch release that fixes few issues identified in previous
> > release 2.0.0-rc1-incubating.
> >
> > It fixes the following issues:
> > https://github.com/apache/incubator-pulsar/milestone/14?closed=1
> >
> > *** Please download, test and vote on this release. This vote will stay
> > open
> > for at least 72 hours ***
> >
> > Note that we are voting upon the source (tag), binaries are provided for
> > convenience.
> >
> > Source and binary files:
> > https://dist.apache.org/repos/dist/dev/incubator/pulsar/
> > pulsar-2.0.1-incubating-candidate-2/
> >
> > SHA-1 checksums:
> >
> > 5acd63f8aa1fa75f386df7b9fd803a943978e609
> > apache-pulsar-2.0.1-incubating-bin.tar.gz
> > 312bc0f1ae170c1d2dc38b1e362fb50f82c00525
> > apache-pulsar-2.0.1-incubating-src.tar.gz
> >
> > Maven staging repo:
> > https://repository.apache.org/content/repositories/orgapachepulsar-1020
> >
> >
> > The tag to be voted upon:
> > v2.0.1-incubating-candidate-2 (fd47532380d770e4fd78cabe71dea293fc2f0e06)
> > https://github.com/apache/incubator-pulsar/releases/tag/
> > v2.0.1-incubating-candidate-2
> >  > v2.0.1-incubating-candidate-1>
> >
> > Pulsar's KEYS file containing PGP keys we use to sign the release:
> > https://dist.apache.org/repos/dist/release/incubator/pulsar/KEYS
> >
> > Please download the the source package, and follow the README to build
> > and run the Pulsar standalone service.
> > --
> > Matteo Merli
> > 
> >
>
-- 
Matteo Merli

Re: Looking for Champion

[Jim Apple]

I don't want to be a stickler, but I don't think "For issues mentioned by
Jim, Todd and Tim, I have replied on last Saturday."

To my email about Palo being an ASF project as a storage system without a
query engine, you replied only, "We will seriously consider this proposal."

I see no response to Tim's concern that "The code isn't owned by any
individual, I contributed it to Apache and it's
free for anyone to do what they want to do with it, but pulling in
improvements from other projects without any attempt to attribute it or
contribute improvements back seems contrary to the Apache way."

On Thu, Jun 14, 2018 at 12:48 AM, Li,De(BDG)  wrote:

> Hi all,
>
> About Palo, we have fixed following issues.
>
> 1. Related Impala
> For issues mentioned by Jim, Todd and Tim, I have replied on last Saturday.
>
> 2、Lisence issue
> For issues mentioned by Todd and Ted.
> 1) be/aes/* come from mysql-5.6, GPL v2.1 license
> Fixed: removed aes related codes.
> https://github.com/baidu/palo/commit/ac770c33d445a4c18a0b74f56b28a4
> 180b30bf
> b7
> https://github.com/baidu/palo/commit/3c9f2ae6695ffebe41e39b6bf65440
> 77698f1c
> ed
>
> 2) be/util/mysql_dtoa.cpp copy from MySQL, GPL license
> Fixed: removed mysql_dtoa related codes.
> https://github.com/baidu/palo/commit/bfe1bc7cf39e165a7c52b2c9415509
> 75b1f841
> a1
>
> 3) be/http/mongoose.h, Copyright (c) 2004-2012 Sergey Lyubka
> Fixed: restored to original lisence, we are searching another http server
> to replace it.
> https://github.com/baidu/palo/commit/81baef34f48a2dbe7401712c5e0a50
> f59f04a8
> 31
>
> 4) be/rpc/*
> Fixed: We have replaced it with brpc, and we will remove Hypertable after
> few weeks for waiting users' upgrade to brpc.
> https://github.com/baidu/palo/tree/master/be/src/rpc
>
> 3、Dependency licenses
> For issue mentioned by Dave, It looks like that Palo have not depend on
> OpenLdap and cyrus-sasl directly,
> but some thirdpary libraries need them to compile, libcurl and gperftools
> for instance.
> For rapidjson, we are looking for alternative one.
>
> 4、About the name of Palo
> For issue mentioned by Julian.
> We are figuring out a better one.
>
> Best Regards,
> Reed
>
>
>
> 在 2018/6/13 上午8:54， "Li,De(BDG)"  写入:
>
> >Hi Julian,
> >
> >Thank you.
> >
> >It looks like that we have to find another one.
> >If anyone has a good name, please feel free to let me know.
> >
> >Best Regards,
> >Reed
> >
> >在 2018/6/13 上午4:20， "Julian Hyde"  写入:
> >
> >>Note that there is an existing database product called Palo - an open
> >>source OLAP engine by German company Jedox[1]. There there is a high
> >>likelihood that Palo would have to change its name during incubation, if
> >>accepted.
> >>
> >>Julian
> >>
> >>[1] https://en.wikipedia.org/wiki/Palo_(OLAP_database)
> >>
> >>
> >>
> >>
> >>> On Jun 10, 2018, at 3:49 AM, Han Luke  wrote:
> >>>
> >>> Cool Dave, it’s great to have you to be the campaign.
> >>>
> >>>
> >>> 
> >>> From: Tan,Zhongyi mailto:tanzhon...@baidu.com>>
> >>> Sent: Saturday, June 9, 2018 8:16:28 AM
> >>> To: general@incubator.apache.org 
> >>> Subject: Re: Looking for Champion
> >>>
> >>> thanks，willem
> >>>
> >>> we are very appreciate.
> >>>
>  在 2018年6月8日，23:03，Willem Jiang  写道：
> 
>  Hi,
> 
>  I'm willing to be the Mentor.
>  Please count me in.
> 
> 
> 
>  Willem Jiang
> 
>  Twitter: willemjiang
>  Weibo: 姜宁willem
> 
> > On Fri, Jun 8, 2018 at 8:59 PM, Dave Fisher 
> >wrote:
> >
> > Hi -
> >
> > I’m willing to Champion and Mentor. I have a couple of comments
> >inline.
> > I’ll look at dependency licenses later today. It’s early for me.
> >
> >
> >> On Jun 7, 2018, at 9:45 PM, Li,De(BDG)  wrote:
> >>
> >> Hi all,
> >>
> >> I am Reed, as a developer worked with the team for Palo (a MPP-based
> > interactive SQL data warehousing).
> >> https://github.com/baidu/palo/wiki/Palo-Overview
> >>
> >> We propose to contribute Palo as an Apache Incubator project, and
> >> we are still looking for possible Champion if anyone would like to
> > volunteer. Thanks a lot.
> >>
> >> Best Regards,
> >> Reed
> >>
> >> ===
> >> The draft of the proposal as below:
> >>
> >> #Apache Palo
> >>
> >> ##Abstract
> >>
> >> Palo is a MPP-based interactive SQL data warehousing for reporting
> >>and
> > analysis.
> >>
> >> ##Proposal
> >>
> >> We propose to contribute the Palo codebase and associated artifacts
> > (e.g. documentation, web-site content etc.) to the Apache Software
> > Foundation with the intent of forming a productive, meritocratic and
> >open
> > community around Palo’s continued development, according to the
> >‘Apache
> > Way’.
> >>
> >> Baidu owns several trademarks regarding 

Re: [VOTE] Release Apache Amaterasu (incubating) 0.2.0 (rc3)

[Henk P. Penning]

On Thu, 14 Jun 2018, Yaniv Rodenski wrote:


Date: Thu, 14 Jun 2018 16:32:19 +0200
From: Yaniv Rodenski 
To: general@incubator.apache.org
Subject: [VOTE] Release Apache Amaterasu (incubating) 0.2.0 (rc3)


  Please remove the .md5's ; see policy :

https://www.apache.org/dev/release-distribution#sigs-and-sums

  This does NOT affect the VOTE ; please continue ...

  Regards,

  Henk Penning

   _
Henk P. Penning, ICT-beta R Uithof MG-403_/ \_
Faculty of Science, Utrecht UniversityT +31 30 253 4106 / \_/ \
Leuvenlaan 4, 3584CE Utrecht, NL  F +31 30 253 4553 \_/ \_/
http://www.staff.science.uu.nl/~penni101/ M penn...@uu.nl \_/


The Apache Amaterasu (incubating) community has voted on and approved a
proposal to release Apache Amaterasu 0.2.0-rc3.

We now kindly request that the Incubator PMC members review and vote on
this incubator release candidate.

Apache Amaterasu is a Configuration Managment and Deployment Framework for
Big Data Pipelines.

The vote thread is at:
http://mail-archives.apache.org/mod_mbox/amaterasu-dev/201805.mbox/%3CCAKm_
3C0qT7pYPjZm_C4JRiruQasW6be2F1xLx%2Bf2zfQvxBWJTA%40mail.gmail.com%3E

and the result is at:
http://mail-archives.apache.org/mod_mbox/amaterasu-dev/201806.mbox/%3CCAKm_3C1qYgM9%3DaOxt7JNo4R23UvoeP%3DhUi7GQpiVEc5AdvAwMg%40mail.gmail.com%3E


This is the first incubator release and it includes much-awaited
improvements such as YARN support, PySpark and SparkSQL support and
stability improvements.

All distribution packages, including signatures, digests, etc. can be
found at:

https://dist.apache.org/repos/dist/dev/incubator/amaterasu/0.2.0rc3/


This release has been signed with PGP key corresponding to
ya...@apache.org, which is included in the repository's KEYS file (
https://dist.apache.org/repos/dist/dev/incubator/amaterasu/KEYS).

The release candidate has been tagged in git with
version-0.2.0-incubating-rc3:
https://github.com/apache/incubator-amaterasu/releases/tag/version-0.2.0-incubating-rc3

Please review and vote. The vote will be open for at least 72 hours.

Thank you very much,
Yaniv



-
To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org
For additional commands, e-mail: general-h...@incubator.apache.org

Re: [VOTE] Release Apache Amaterasu (incubating) 0.2.0 (rc3)

[Jean-Baptiste Onofré]

+1 (binding)

Casting my vote here.

Regards
JB

On 14/06/2018 16:32, Yaniv Rodenski wrote:
> Hi All,
> 
> The Apache Amaterasu (incubating) community has voted on and approved a
> proposal to release Apache Amaterasu 0.2.0-rc3.
> 
> We now kindly request that the Incubator PMC members review and vote on
> this incubator release candidate.
> 
> Apache Amaterasu is a Configuration Managment and Deployment Framework for
> Big Data Pipelines.
> 
> The vote thread is at:
> http://mail-archives.apache.org/mod_mbox/amaterasu-dev/201805.mbox/%3CCAKm_
> 3C0qT7pYPjZm_C4JRiruQasW6be2F1xLx%2Bf2zfQvxBWJTA%40mail.gmail.com%3E
> 
> and the result is at:
> http://mail-archives.apache.org/mod_mbox/amaterasu-dev/201806.mbox/%3CCAKm_3C1qYgM9%3DaOxt7JNo4R23UvoeP%3DhUi7GQpiVEc5AdvAwMg%40mail.gmail.com%3E
> 
> 
> This is the first incubator release and it includes much-awaited
> improvements such as YARN support, PySpark and SparkSQL support and
> stability improvements.
> 
> All distribution packages, including signatures, digests, etc. can be
> found at:
> 
> https://dist.apache.org/repos/dist/dev/incubator/amaterasu/0.2.0rc3/
> 
> 
> This release has been signed with PGP key corresponding to
> ya...@apache.org, which is included in the repository's KEYS file (
> https://dist.apache.org/repos/dist/dev/incubator/amaterasu/KEYS).
> 
> The release candidate has been tagged in git with
> version-0.2.0-incubating-rc3:
> https://github.com/apache/incubator-amaterasu/releases/tag/version-0.2.0-incubating-rc3
> 
> Please review and vote. The vote will be open for at least 72 hours.
> 
> Thank you very much,
> Yaniv
> 

-- 
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com

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To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org
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[VOTE] Release Apache Amaterasu (incubating) 0.2.0 (rc3)

[Yaniv Rodenski]

Hi All,

The Apache Amaterasu (incubating) community has voted on and approved a
proposal to release Apache Amaterasu 0.2.0-rc3.

We now kindly request that the Incubator PMC members review and vote on
this incubator release candidate.

Apache Amaterasu is a Configuration Managment and Deployment Framework for
Big Data Pipelines.

The vote thread is at:
http://mail-archives.apache.org/mod_mbox/amaterasu-dev/201805.mbox/%3CCAKm_
3C0qT7pYPjZm_C4JRiruQasW6be2F1xLx%2Bf2zfQvxBWJTA%40mail.gmail.com%3E

and the result is at:
http://mail-archives.apache.org/mod_mbox/amaterasu-dev/201806.mbox/%3CCAKm_3C1qYgM9%3DaOxt7JNo4R23UvoeP%3DhUi7GQpiVEc5AdvAwMg%40mail.gmail.com%3E


This is the first incubator release and it includes much-awaited
improvements such as YARN support, PySpark and SparkSQL support and
stability improvements.

All distribution packages, including signatures, digests, etc. can be
found at:

https://dist.apache.org/repos/dist/dev/incubator/amaterasu/0.2.0rc3/


This release has been signed with PGP key corresponding to
ya...@apache.org, which is included in the repository's KEYS file (
https://dist.apache.org/repos/dist/dev/incubator/amaterasu/KEYS).

The release candidate has been tagged in git with
version-0.2.0-incubating-rc3:
https://github.com/apache/incubator-amaterasu/releases/tag/version-0.2.0-incubating-rc3

Please review and vote. The vote will be open for at least 72 hours.

Thank you very much,
Yaniv

Re: Looking for Champion

[Li,De(BDG)]

Hi all,

About Palo, we have fixed following issues.

1. Related Impala
For issues mentioned by Jim, Todd and Tim, I have replied on last Saturday.

2、Lisence issue
For issues mentioned by Todd and Ted.
1) be/aes/* come from mysql-5.6, GPL v2.1 license
Fixed: removed aes related codes.
https://github.com/baidu/palo/commit/ac770c33d445a4c18a0b74f56b28a4180b30bf
b7
https://github.com/baidu/palo/commit/3c9f2ae6695ffebe41e39b6bf6544077698f1c
ed

2) be/util/mysql_dtoa.cpp copy from MySQL, GPL license
Fixed: removed mysql_dtoa related codes.
https://github.com/baidu/palo/commit/bfe1bc7cf39e165a7c52b2c941550975b1f841
a1

3) be/http/mongoose.h, Copyright (c) 2004-2012 Sergey Lyubka
Fixed: restored to original lisence, we are searching another http server
to replace it.
https://github.com/baidu/palo/commit/81baef34f48a2dbe7401712c5e0a50f59f04a8
31

4) be/rpc/*
Fixed: We have replaced it with brpc, and we will remove Hypertable after
few weeks for waiting users' upgrade to brpc.
https://github.com/baidu/palo/tree/master/be/src/rpc

3、Dependency licenses
For issue mentioned by Dave, It looks like that Palo have not depend on
OpenLdap and cyrus-sasl directly,
but some thirdpary libraries need them to compile, libcurl and gperftools
for instance.
For rapidjson, we are looking for alternative one.

4、About the name of Palo
For issue mentioned by Julian.
We are figuring out a better one.

Best Regards,
Reed



在 2018/6/13 上午8:54， "Li,De(BDG)"  写入:

>Hi Julian,
>
>Thank you.
>
>It looks like that we have to find another one.
>If anyone has a good name, please feel free to let me know.
>
>Best Regards,
>Reed
>
>在 2018/6/13 上午4:20， "Julian Hyde"  写入:
>
>>Note that there is an existing database product called Palo - an open
>>source OLAP engine by German company Jedox[1]. There there is a high
>>likelihood that Palo would have to change its name during incubation, if
>>accepted.
>>
>>Julian
>>
>>[1] https://en.wikipedia.org/wiki/Palo_(OLAP_database)
>>
>>
>>
>>
>>> On Jun 10, 2018, at 3:49 AM, Han Luke  wrote:
>>> 
>>> Cool Dave, it’s great to have you to be the campaign.
>>> 
>>> 
>>> 
>>> From: Tan,Zhongyi mailto:tanzhon...@baidu.com>>
>>> Sent: Saturday, June 9, 2018 8:16:28 AM
>>> To: general@incubator.apache.org 
>>> Subject: Re: Looking for Champion
>>> 
>>> thanks，willem
>>> 
>>> we are very appreciate.
>>> 
 在 2018年6月8日，23:03，Willem Jiang  写道：
 
 Hi,
 
 I'm willing to be the Mentor.
 Please count me in.
 
 
 
 Willem Jiang
 
 Twitter: willemjiang
 Weibo: 姜宁willem
 
> On Fri, Jun 8, 2018 at 8:59 PM, Dave Fisher 
>wrote:
> 
> Hi -
> 
> I’m willing to Champion and Mentor. I have a couple of comments
>inline.
> I’ll look at dependency licenses later today. It’s early for me.
> 
> 
>> On Jun 7, 2018, at 9:45 PM, Li,De(BDG)  wrote:
>> 
>> Hi all,
>> 
>> I am Reed, as a developer worked with the team for Palo (a MPP-based
> interactive SQL data warehousing).
>> https://github.com/baidu/palo/wiki/Palo-Overview
>> 
>> We propose to contribute Palo as an Apache Incubator project, and
>> we are still looking for possible Champion if anyone would like to
> volunteer. Thanks a lot.
>> 
>> Best Regards,
>> Reed
>> 
>> ===
>> The draft of the proposal as below:
>> 
>> #Apache Palo
>> 
>> ##Abstract
>> 
>> Palo is a MPP-based interactive SQL data warehousing for reporting
>>and
> analysis.
>> 
>> ##Proposal
>> 
>> We propose to contribute the Palo codebase and associated artifacts
> (e.g. documentation, web-site content etc.) to the Apache Software
> Foundation with the intent of forming a productive, meritocratic and
>open
> community around Palo’s continued development, according to the
>‘Apache
> Way’.
>> 
>> Baidu owns several trademarks regarding Palo, and proposes to
>>transfer
> ownership of those trademarks in full to the ASF.
>> 
>> ###Overview of Palo
>> 
>> Palo’s implementation consists of two daemons: Frontend (FE) and
>>Backend
> (BE).
>> 
>> **Frontend daemon** consists of query coordinator and catalog
>>manager.
> Query coordinator is responsible for receiving users’ sql queries,
> compiling queries and managing queries execution. Catalog manager is
> responsible for managing metadata such as databases, tables,
>partitions,
> replicas and etc. Several frontend daemons could be deployed to
>guarantee
> fault-tolerance, and load balancing.
>> 
>> **Backend daemon** stores the data and executes the query fragments.
> Many backend daemons could also be deployed to provide scalability
>and
> fault-tolerance.
>> 
>> A typical Palo cluster generally