Re: [ANNOUNCE] Apache Hadoop 3.3.2 release

[Wei-Chiu Chuang]

Thanks a lot for the tremendous work!

On Fri, Mar 4, 2022 at 9:30 AM Chao Sun  wrote:

> Hi All,
>
> It gives me great pleasure to announce that the Apache Hadoop community has
> voted to release Apache Hadoop 3.3.2.
>
> This is the second stable release of Apache Hadoop 3.3 line. It contains
> 284 bug fixes, improvements and enhancements since 3.3.1.
>
> Users are encouraged to read the overview of major changes [1] since 3.3.1.
> For details of 284 bug fixes, improvements, and other enhancements since
> the previous 3.3.1 release, please check release notes [2] and changelog
> [3].
>
> [1]: https://hadoop.apache.org/docs/r3.3.2/index.html
> [2]:
>
> http://hadoop.apache.org/docs/r3.3.2/hadoop-project-dist/hadoop-common/release/3.3.2/RELEASENOTES.3.3.2.html
> [3]:
>
> http://hadoop.apache.org/docs/r3.3.2/hadoop-project-dist/hadoop-common/release/3.3.2/CHANGELOG.3.3.2.html
>
> Many thanks to everyone who contributed to the release, and everyone in the
> Apache Hadoop community! This release is a direct result of your great
> contributions.
>
> Many thanks to everyone who helped in this release process!
>
> Many thanks to Viraj Jasani, Michael Stack, Masatake Iwasaki, Xiaoqiao He,
> Mukund Madhav Thakur, Wei-Chiu Chuang, Steve Loughran, Akira Ajisaka and
> other folks who helped for this release process.
>
> Best Regards,
> Chao
>

Re: Next Mandarin Hadoop Online Meetup Jan 6th.

[Wei-Chiu Chuang]

Hello

Thanks for joining this event.

The presentation slides (in English) is available at
https://drive.google.com/file/d/1PiZYhzxANqtoyO_nSLt_-v7aP3j17Sbg/view

The recording (in Mandarin) is available at
https://cloudera.zoom.us/rec/share/JaNm70lZQGCZdlFzh9ZbsfrR7MJ7Nazb2g6NCtYPqsRLWtyEhLfgwXOppzMR3csp.HqRJNGXUGSaPu1qw
Access Passcode: 4g1ZF&%f


On Mon, Jan 3, 2022 at 5:39 PM Wei-Chiu Chuang  wrote:

> Hello community,
>
> This week we'll going to have Tao Li (tomscut) speaking about  the
> experience of operating HDFS at BIGO. See you on Thursday!
>
> 题目：《HDFS在BIGO的实践》
> 概要：HDFS作为大数据底层存储服务，在BIGO的发展中起到了非常重要的作用。随着业务的发展和数据的爆发式增长，HDFS单个集群的瓶颈愈发凸显，我们借助Router，将多个HDFS集群整合成一个Namespace，增强集群的扩展能力；改造Router，使其支持Alluxio和自定义策略，并开启HDFS
> EC，实现热、温、冷数据分层存储。同时，通过对HDFS集群慢节点和慢盘的处理，提升了HDFS的读写性能。本次分享主要讲述BIGO对Router的实践经验，以及对慢节点和慢盘的处理经验。
> 关键词：Router，Slow Node，Slow Disk
> 演讲者：Tao Li (Apache id: tomscut)
>
> Date/Time: Jan 6 2PM Beijing Time.
>
> Zoom link: https://cloudera.zoom.us/j/97264903288
>
> One tap mobile
>
> +16465588656,,880548968# US (New York)
>
> +17207072699,,880548968# US
>
> Download Center <https://cloudera.zoom.us/j/880548968>
>
> Dial by your location
>
> +1 646 558 8656 US (New York)
>
> +1 720 707 2699 US
>
> 877 853 5257 US Toll-free
>
> 888 475 4499 US Toll-free
>
> Meeting ID: 972 6490 3288
> Find your local number: https://zoom.us/u/acaGRDfMVl
>

Re: Next Mandarin Hadoop Online Meetup Jan 6th.

[Wei-Chiu Chuang]

Just a gentle reminder this is happening now.

On Mon, Jan 3, 2022 at 5:39 PM Wei-Chiu Chuang  wrote:

> Hello community,
>
> This week we'll going to have Tao Li (tomscut) speaking about  the
> experience of operating HDFS at BIGO. See you on Thursday!
>
> 题目：《HDFS在BIGO的实践》
> 概要：HDFS作为大数据底层存储服务，在BIGO的发展中起到了非常重要的作用。随着业务的发展和数据的爆发式增长，HDFS单个集群的瓶颈愈发凸显，我们借助Router，将多个HDFS集群整合成一个Namespace，增强集群的扩展能力；改造Router，使其支持Alluxio和自定义策略，并开启HDFS
> EC，实现热、温、冷数据分层存储。同时，通过对HDFS集群慢节点和慢盘的处理，提升了HDFS的读写性能。本次分享主要讲述BIGO对Router的实践经验，以及对慢节点和慢盘的处理经验。
> 关键词：Router，Slow Node，Slow Disk
> 演讲者：Tao Li (Apache id: tomscut)
>
> Date/Time: Jan 6 2PM Beijing Time.
>
> Zoom link: https://cloudera.zoom.us/j/97264903288
>
> One tap mobile
>
> +16465588656,,880548968# US (New York)
>
> +17207072699,,880548968# US
>
> Download Center <https://cloudera.zoom.us/j/880548968>
>
> Dial by your location
>
> +1 646 558 8656 US (New York)
>
> +1 720 707 2699 US
>
> 877 853 5257 US Toll-free
>
> 888 475 4499 US Toll-free
>
> Meeting ID: 972 6490 3288
> Find your local number: https://zoom.us/u/acaGRDfMVl
>

Next Mandarin Hadoop Online Meetup Jan 6th.

[Wei-Chiu Chuang]

Hello community,

This week we'll going to have Tao Li (tomscut) speaking about  the
experience of operating HDFS at BIGO. See you on Thursday!

题目：《HDFS在BIGO的实践》
概要：HDFS作为大数据底层存储服务，在BIGO的发展中起到了非常重要的作用。随着业务的发展和数据的爆发式增长，HDFS单个集群的瓶颈愈发凸显，我们借助Router，将多个HDFS集群整合成一个Namespace，增强集群的扩展能力；改造Router，使其支持Alluxio和自定义策略，并开启HDFS
EC，实现热、温、冷数据分层存储。同时，通过对HDFS集群慢节点和慢盘的处理，提升了HDFS的读写性能。本次分享主要讲述BIGO对Router的实践经验，以及对慢节点和慢盘的处理经验。
关键词：Router，Slow Node，Slow Disk
演讲者：Tao Li (Apache id: tomscut)

Date/Time: Jan 6 2PM Beijing Time.

Zoom link: https://cloudera.zoom.us/j/97264903288

One tap mobile

+16465588656,,880548968# US (New York)

+17207072699,,880548968# US

Download Center 

Dial by your location

+1 646 558 8656 US (New York)

+1 720 707 2699 US

877 853 5257 US Toll-free

888 475 4499 US Toll-free

Meeting ID: 972 6490 3288
Find your local number: https://zoom.us/u/acaGRDfMVl

Re: Next Hadoop community online meetup (Mandarin)

[Wei-Chiu Chuang]

Thanks for participating in today's session. We have nearly a hundred
participants so I am quite impressed!

Yiyang graciously agreed to share the presentation slides, which can be
downloaded from here:
https://drive.google.com/file/d/1aAplPKU2frkKZoLeeHxbAzxLeJcL3bsf/view?usp=sharing
(it's in English so the wider audience can read)

Please find today's recording here:

https://cloudera.zoom.us/rec/share/MOwRDPP50eL7gRfNazfjqAXdl_7HwAaPH460sONmmlx_tLQrftVjjjCBkVvE-9sf.GRb9Kp_16xOqgzNu
Passcode:
L^n30&%d

On Thu, Dec 9, 2021 at 2:10 PM Wei-Chiu Chuang  wrote:

> We are having a little technical difficulties.
> For those who are late, we are using this link instead:
> https://cloudera.zoom.us/j/93901387554
>
> On Thu, Dec 9, 2021 at 12:55 PM Takanobu Asanuma <
> takanobu.asan...@gmail.com> wrote:
>
>> Thanks for the information!
>>
>> 2021年12月9日(木) 13:52 Wei-Chiu Chuang :
>>
>>> Hello, this talk will start in about an hour.
>>>
>>> (I'm sorry forgot to add this is 2PM Beijing time)
>>>
>>> On Thu, Dec 9, 2021 at 11:00 AM Takanobu Asanuma 
>>> wrote:
>>>
>>>> What is the timezone?
>>>>
>>>> 2021年11月29日(月) 14:50 Wei-Chiu Chuang :
>>>>
>>>>> Hello HDFS devs
>>>>>
>>>>> After a long hiatus, I'm happy to share that we'll have Yiyang from
>>>>> Shopee
>>>>> who is going to talk about their experience of using HDFS at Shopee.
>>>>>
>>>>> This is a Mandarin talk.
>>>>>
>>>>> 题目：《HDFS在Shopee的演进》
>>>>>
>>>>> 概要：HDFS作为最底层的存储架构，在Shopee的业务发展中起到了重要支撑作用。随着Shopee业务的扩展，HDFS存储服务也面临了越来越多的挑战。本次分享主要介绍在面临这些挑战时，如何借鉴社区成果，并结合内部具体需求，解决性能和稳定性上的问题。
>>>>> 关键词： Observer, RBF, slownode
>>>>> 演讲者：Yiyang Zhou (Apache id: Symious)
>>>>>
>>>>> 12月9日周四下午2点
>>>>>
>>>>> Zoom Meeting
>>>>>
>>>>> https://cloudera.zoom.us/j/880548968
>>>>>
>>>>> One tap mobile
>>>>>
>>>>> +16465588656,,880548968# US (New York)
>>>>>
>>>>> +17207072699,,880548968# US
>>>>>
>>>>> Download Center <https://cloudera.zoom.us/j/880548968>
>>>>>
>>>>> Dial by your location
>>>>>
>>>>> +1 646 558 8656 US (New York)
>>>>>
>>>>> +1 720 707 2699 US
>>>>>
>>>>> 877 853 5257 US Toll-free
>>>>>
>>>>> 888 475 4499 US Toll-free
>>>>>
>>>>> Meeting ID: 880 548 968
>>>>>
>>>>> Find your local number: https://zoom.us/u/acaGRDfMVl
>>>>>
>>>>

Re: Next Hadoop community online meetup (Mandarin)

[Wei-Chiu Chuang]

We are having a little technical difficulties.
For those who are late, we are using this link instead:
https://cloudera.zoom.us/j/93901387554

On Thu, Dec 9, 2021 at 12:55 PM Takanobu Asanuma 
wrote:

> Thanks for the information!
>
> 2021年12月9日(木) 13:52 Wei-Chiu Chuang :
>
>> Hello, this talk will start in about an hour.
>>
>> (I'm sorry forgot to add this is 2PM Beijing time)
>>
>> On Thu, Dec 9, 2021 at 11:00 AM Takanobu Asanuma 
>> wrote:
>>
>>> What is the timezone?
>>>
>>> 2021年11月29日(月) 14:50 Wei-Chiu Chuang :
>>>
>>>> Hello HDFS devs
>>>>
>>>> After a long hiatus, I'm happy to share that we'll have Yiyang from
>>>> Shopee
>>>> who is going to talk about their experience of using HDFS at Shopee.
>>>>
>>>> This is a Mandarin talk.
>>>>
>>>> 题目：《HDFS在Shopee的演进》
>>>>
>>>> 概要：HDFS作为最底层的存储架构，在Shopee的业务发展中起到了重要支撑作用。随着Shopee业务的扩展，HDFS存储服务也面临了越来越多的挑战。本次分享主要介绍在面临这些挑战时，如何借鉴社区成果，并结合内部具体需求，解决性能和稳定性上的问题。
>>>> 关键词： Observer, RBF, slownode
>>>> 演讲者：Yiyang Zhou (Apache id: Symious)
>>>>
>>>> 12月9日周四下午2点
>>>>
>>>> Zoom Meeting
>>>>
>>>> https://cloudera.zoom.us/j/880548968
>>>>
>>>> One tap mobile
>>>>
>>>> +16465588656,,880548968# US (New York)
>>>>
>>>> +17207072699,,880548968# US
>>>>
>>>> Download Center <https://cloudera.zoom.us/j/880548968>
>>>>
>>>> Dial by your location
>>>>
>>>> +1 646 558 8656 US (New York)
>>>>
>>>> +1 720 707 2699 US
>>>>
>>>> 877 853 5257 US Toll-free
>>>>
>>>> 888 475 4499 US Toll-free
>>>>
>>>> Meeting ID: 880 548 968
>>>>
>>>> Find your local number: https://zoom.us/u/acaGRDfMVl
>>>>
>>>

Re: Next Hadoop community online meetup (Mandarin)

[Wei-Chiu Chuang]

Hello, this talk will start in about an hour.

(I'm sorry forgot to add this is 2PM Beijing time)

On Thu, Dec 9, 2021 at 11:00 AM Takanobu Asanuma 
wrote:

> What is the timezone?
>
> 2021年11月29日(月) 14:50 Wei-Chiu Chuang :
>
>> Hello HDFS devs
>>
>> After a long hiatus, I'm happy to share that we'll have Yiyang from Shopee
>> who is going to talk about their experience of using HDFS at Shopee.
>>
>> This is a Mandarin talk.
>>
>> 题目：《HDFS在Shopee的演进》
>>
>> 概要：HDFS作为最底层的存储架构，在Shopee的业务发展中起到了重要支撑作用。随着Shopee业务的扩展，HDFS存储服务也面临了越来越多的挑战。本次分享主要介绍在面临这些挑战时，如何借鉴社区成果，并结合内部具体需求，解决性能和稳定性上的问题。
>> 关键词： Observer, RBF, slownode
>> 演讲者：Yiyang Zhou (Apache id: Symious)
>>
>> 12月9日周四下午2点
>>
>> Zoom Meeting
>>
>> https://cloudera.zoom.us/j/880548968
>>
>> One tap mobile
>>
>> +16465588656,,880548968# US (New York)
>>
>> +17207072699,,880548968# US
>>
>> Download Center <https://cloudera.zoom.us/j/880548968>
>>
>> Dial by your location
>>
>> +1 646 558 8656 US (New York)
>>
>> +1 720 707 2699 US
>>
>> 877 853 5257 US Toll-free
>>
>> 888 475 4499 US Toll-free
>>
>> Meeting ID: 880 548 968
>>
>> Find your local number: https://zoom.us/u/acaGRDfMVl
>>
>

Next Hadoop community online meetup (Mandarin)

[Wei-Chiu Chuang]

Hello HDFS devs

After a long hiatus, I'm happy to share that we'll have Yiyang from Shopee
who is going to talk about their experience of using HDFS at Shopee.

This is a Mandarin talk.

题目：《HDFS在Shopee的演进》
概要：HDFS作为最底层的存储架构，在Shopee的业务发展中起到了重要支撑作用。随着Shopee业务的扩展，HDFS存储服务也面临了越来越多的挑战。本次分享主要介绍在面临这些挑战时，如何借鉴社区成果，并结合内部具体需求，解决性能和稳定性上的问题。
关键词： Observer, RBF, slownode
演讲者：Yiyang Zhou (Apache id: Symious)

12月9日周四下午2点

Zoom Meeting

https://cloudera.zoom.us/j/880548968

One tap mobile

+16465588656,,880548968# US (New York)

+17207072699,,880548968# US

Download Center 

Dial by your location

+1 646 558 8656 US (New York)

+1 720 707 2699 US

877 853 5257 US Toll-free

888 475 4499 US Toll-free

Meeting ID: 880 548 968

Find your local number: https://zoom.us/u/acaGRDfMVl

[ANNOUNCE] Apache Hadoop 3.3.1 release

[Wei-Chiu Chuang]

Hi All,

It gives me great pleasure to announce that the Apache Hadoop community has
voted to release Apache Hadoop 3.3.1.

This is the first stable release of Apache Hadoop 3.3.x line. It contains
697 bug fixes, improvements and enhancements since 3.3.0.

Users are encouraged to read the overview of major changes
<https://hadoop.apache.org/docs/r3.3.1/index.html> since 3.3.0. For details
of 697 bug fixes, improvements, and other enhancements since the previous
3.3.0 release, please check release notes
<http://hadoop.apache.org/docs/r3.3.1/hadoop-project-dist/hadoop-common/release/3.3.1/RELEASENOTES.3.3.1.html>
 and changelog
<http://hadoop.apache.org/docs/r3.3.1/hadoop-project-dist/hadoop-common/release/3.3.1/CHANGES.3.3.1.html>
detail
the changes since 3.3.0.

Many thanks to everyone who contributed to the release, and everyone in the
Apache Hadoop community! This release is a direct result of your great
contributions.

Many thanks to everyone who helped in this release process!

Many thanks to Sean Busbey, Chao Sun, Steve Loughran, Masatake Iwasaki,
Michael Stack, Viraj Jasani, Eric Payne, Ayush Saxena, Vinayakumar B,
Takanobu Asanuma, Xiaoqiao He and other folks who continued helps for this
release process.

Best Regards,
Wei-Chiu Chuang

Re: This Week's Hadoop Storage Online Meetup (APAC Mandarin)

[Wei-Chiu Chuang]

Thanks Mingxian for the great discussion. We have a really good turnout
yesterday. Nearly 30 participants joined the call.

The recording is available here:

https://cloudera.zoom
.us/rec/share/RC5mIj9Wf_M34soGcXvfHZP-5YS3uZez0zBRN5NVVSCpKTiWPueBHMS90bFAT7eZ.c5ZLNd7MTjnJGpsW
Passcode:
P6skX#W+

Please find the notes below. Mingxian will translate the slides and share
publicly later.



9/9 Mandarin online sync

Weichiu, Xiaoqiao, Aiphago, brahma, huhaiyang, Leon Gao, Lisheng Sun,
WangHongbing, zy jordan, Chen Liang, xuzq, starliu, WA, le, wangyongli,
feilongh, fengpk, jiayu xu, Tang Campbell, PhiloHE, Sibyl, Jinglun

Aiphago (limingxiang) discussed DataNode lock optimization.

   -

   HDFS-15000 <https://issues.apache.org/jira/browse/HDFS-15000>

Partition locks by block pool. Problem: multiple block pool may share the
same disk, interfere each other.

   -

   HDFS-15382 <https://issues.apache.org/jira/browse/HDFS-15382>

Partition locks even further by disk granularity.: # of locks = # of block
pools * (1 + # of disks). LockManager updates locks dynamically.

Benchmark: the improvement is even more with more stress. Prior to the
change, the latency can go as high as 6000ms. After the change, the latency
reduced to less than 100ms.

Future work: The implementation was based on 2.7. Need to forward port to
newer releases for the community. Load balance between multiple disks.

The slides will be shared and translated later.


On Tue, Sep 8, 2020 at 7:08 AM Wei-Chiu Chuang  wrote:

> We are happy to have 李铭翔 leading the discussion on DataNode拆锁优化 (DataNode
> locking optimization) this week.
>
>
> Time/Date:
>
> 9/9 10PM (US west coast PST)
>
> 9/10 1PM (Beijing, China CST)
>
>
> Join Zoom Meeting
>
> https://cloudera.zoom.us/j/880548968
>
>
>

本週Hadoop Online Meetup（中文）

[Wei-Chiu Chuang]

李铭翔將要分享DataNode拆锁优化


時間：

9/9 10PM (US west coast PST)

9/10 1PM (Beijing, China CST)


Join Zoom Meeting

https://cloudera.zoom.us/j/880548968

[ANNOUNCEMENT] Apache Hadoop 2.9.x release line end of life

[Wei-Chiu Chuang]

The Apache Hadoop community has voted to end the release line of 2.9.x.
(Vote thread: https://s.apache.org/ApacheHadoop2.9EOLVote)

The first 2.9 release, 2.9.0 was released on 12/17/2017
The last 2.9 release, 2.9.2, was released on 1/19/2018

Existing 2.9.x users are encouraged to upgrade to newer release lines:
2.10.0 / 3.1.4 / 3.2.1 / 3.3.0.

Please check out our Release EOL wiki for details:
https://cwiki.apache.org/confluence/display/HADOOP/EOL+(End-of-life)+Release+Branches

Best Regards,
Wei-Chiu Chuang (On Behalf of the Apache Hadoop PMC)

Hadoop & ApacheCon

[Wei-Chiu Chuang]

Hello,

This year's ApacheCon will take place online between 9/29 and 10/1. There
are lots of sessions made by our fellow Hadoop developers:

https://apachecon.com/acah2020/tracks/bigdata-1.html
https://apachecon.com/acah2020/tracks/bigdata-2.html

In case you didn't realize, the registration is free, so be sure to check
them out!

Some of the talks that are closely related to Hadoop:

Apache Hadoop YARN: Past, Now and Future
Szilard Nemeth, Sunil Govindan

Hadoop Storage Reloaded: the 5 lessons Ozone learned from HDFS
Márton Elek

GDPR’s Right to be Forgotten in Apache Hadoop Ozone
Dinesh Chitlangia

Global File System View Across all Hadoop Compatible File Systems with the
LightWeight Client Side Mount Points.
Uma Maheswara Rao Gangumalla

Apache Hadoop YARN fs2cs: Converting Fair Scheduler to Capacity Scheduler
Peter Bacsko

HDFS Migration from 2.7 to 3.3 and enabling Router Based Federation (RBF)
in production
Akira Ajisaka

Stepping towards Bigdata on ARM
Vinayakumar B, Liu Sheng

I am sure I missed out others since I only looked at the Big Data tracks.
Feel free to add more if you want to promote your talk :)

Cheers
Weichiu

Re: Mandarin Hadoop online sync this week

[Wei-Chiu Chuang]

This week's summary:

8/26 Mandarin online sync

Weichiu, Xiaoiao, Baoloongmao, Hui, wuweiwei,, Leon Gao, Lisheng Sun,
Jinglun, zhoubin86

Leon shared a DataNode improvement proposal at Uber.

Different storage density. Balance disk IO among different disk size.

Problem: archive disk’s IO utilization is very low. Want to use it more.

The proposed change will be based on the HSM, with quite minimal change.

Cold data is in GCS. A simple scheme to copy cold data to GCS. The data in
GCS is not intended to be accessible readily, so don’t worry about the
scheme change.

Jinglun shared the solutions to an operational problem: NameNode QPS
dropped, waiting time more than 1 second, processing time more than 400ms.
Solution: (1) migrate a directory to a new namespace.  (2) RBF can hash out
a directory to multiple namespaces, reducing the pressure of a particular
NN.

Baoloongmao suggested we can port Ozone features into Hadoop Common. For
example, Java-based configuration is a power feature which can benefit
Hadoop as well.


On Tue, Aug 25, 2020 at 9:47 AM Wei-Chiu Chuang  wrote:

> Hello,
>
> There hasn't been a Mandarin online sync for quite some time. I'd like to
> call for one this week:
>
> Date/time:
>
> 8/27 Thursday Beijing Time 1PM
> 8/26 Wednesday US Pacific Time 10PM
>
> Link:
> https://cloudera.zoom.us/j/880548968
>
> Past sync summary:
>
> https://docs.google.com/document/d/1jXM5Ujvf-zhcyw_5kiQVx6g-HeKe-YGnFS_1-qFXomI/edit
>
>
>

Re: Mandarin Hadoop online sync this week

[Wei-Chiu Chuang]

Brahma,

Thanks for bring this up. I don't have a specific topic in mind.

For me, I'd like to use this as an opportunity to get a feeling of what
features/problems the community feel interested in. And in general, what
are the Hadoop versions the community are using? Can we stop 2.9.x
development and concentrate on 3.2/3.3 and trunk? I am interested in
arranging a meetup for a broader audience in English for topics like this
soon too.

Other things I'd like to explore (if there's time), is how do we involve
the Chinese community better. How can we grow more Chinese/Asian committers?

On Tue, Aug 25, 2020 at 9:58 AM Brahma Reddy Battula 
wrote:

> HI,
>
> what you are planning for this week?
>
> On Tue, Aug 25, 2020 at 10:18 PM Wei-Chiu Chuang 
> wrote:
>
>> Hello,
>>
>> There hasn't been a Mandarin online sync for quite some time. I'd like to
>> call for one this week:
>>
>> Date/time:
>>
>> 8/27 Thursday Beijing Time 1PM
>> 8/26 Wednesday US Pacific Time 10PM
>>
>> Link:
>> https://cloudera.zoom.us/j/880548968
>>
>> Past sync summary:
>>
>> https://docs.google.com/document/d/1jXM5Ujvf-zhcyw_5kiQVx6g-HeKe-YGnFS_1-qFXomI/edit
>>
>
>
> --
>
>
>
> --Brahma Reddy Battula
>

Mandarin Hadoop online sync this week

[Wei-Chiu Chuang]

Hello,

There hasn't been a Mandarin online sync for quite some time. I'd like to
call for one this week:

Date/time:

8/27 Thursday Beijing Time 1PM
8/26 Wednesday US Pacific Time 10PM

Link:
https://cloudera.zoom.us/j/880548968

Past sync summary:
https://docs.google.com/document/d/1jXM5Ujvf-zhcyw_5kiQVx6g-HeKe-YGnFS_1-qFXomI/edit

[ANNOUNCEMENT] Apache Hadoop 2.8.x release line end of life

[Wei-Chiu Chuang]

The Apache Hadoop community has voted to end the release line of 2.8.x.
(Vote thread: https://s.apache.org/ApacheHadoop2.8EOLVote)

The first 2.8 release, 2.8.0 was released on 03/27/2017
The last 2.8 release, 2.8.5, was released on 09/15/2018

Existing 2.8.x users are encouraged to upgrade to newer release lines:
2.10.0 / 3.1.3 / 3.2.1.

Please check out our Release EOL wiki for details:
https://cwiki.apache.org/confluence/display/HADOOP/EOL+(End-of-life)+Release+Branches

Best Regards,
Wei-Chiu Chuang (On Behalf of the Apache Hadoop PMC)

Re: [DISCUSS] fate of branch-2.9

[Wei-Chiu Chuang]

Forwarding the discussion thread from the dev mailing lists to the user
mailing lists.

I'd like to get an idea of how many users are still on Hadoop 2.9.
Please share your thoughts.

On Mon, Mar 2, 2020 at 6:30 PM Sree Vaddi 
wrote:

> +1
>
> Sent from Yahoo Mail on Android
>
>   On Mon, Mar 2, 2020 at 5:12 PM, Wei-Chiu Chuang
> wrote:   Hi,
>
> Following the discussion to end branch-2.8, I want to start a discussion
> around what's next with branch-2.9. I am hesitant to use the word "end of
> life" but consider these facts:
>
> * 2.9.0 was released Dec 17, 2017.
> * 2.9.2, the last 2.9.x release, went out Nov 19 2018, which is more than
> 15 months ago.
> * no one seems to be interested in being the release manager for 2.9.3.
> * Most if not all of the active Hadoop contributors are using Hadoop 2.10
> or Hadoop 3.x.
> * We as a community do not have the cycle to manage multiple release line,
> especially since Hadoop 3.3.0 is coming out soon.
>
> It is perhaps the time to gradually reduce our footprint in Hadoop 2.x, and
> encourage people to upgrade to Hadoop 3.x
>
> Thoughts?
>
>

Re: 订阅

[Wei-Chiu Chuang]

Hi!
訂閱請發信至 user-zh-subscr...@hadoop.apache.org

On Mon, Mar 2, 2020 at 9:37 AM 涂瑜-技术中台  wrote:

> 订阅
> -
> To unsubscribe, e-mail: user-zh-unsubscr...@hadoop.apache.org
> For additional commands, e-mail: user-zh-h...@hadoop.apache.org
>