[REPORT] [DISCUSSION][IMPORTANT] End the supports of JDK 1.6 in the agent side

[Sheng Wu <wu...@gmail.com>]

Hi everyone

Here is the stat report based on our survey.

247 persons representing their companies or entities took part in this
survey.
225 are end-users (91%)

JDK compatible requirements are following
1. JDK6 13.8%
2. JDK7 12.1%
3. JDK8+ 74.1%

Clearly, most users are using JDK8+.

I will start a vote for this
1. SkyWalking 7.x(will start after 6.6.0 release) will work on JDK8+,
including the agent
2. SkyWalking 6.x will switch to maintain mode only, provides bug fix as
minimal workload
3. SkYWalking 7.x will provide compatible with 6.x agent if 6.7+ releases
are required. Unless gRPC issue makes it impossible.

If anyone has more suggestions, please let me know before I call for a vote.

Sheng Wu 吴晟
Twitter, wusheng1108


Sheng Wu <wu...@gmail.com> 于2019年12月15日周日 上午10:48写道：

> Hi
>
> This is a reminder, our survey[1] has been open for 4 days, I plan to
> close it 2 days later.
> 241 users take part in, 219(90%) of them reported as end users.
>
> I believe we have enough material to make the decision for the incoming
> 7.x JDK requirement.
> Survey raw data will be shared inside PPMC and report the stat result
> here(dev ml).
>
> [1] https://wj.qq.com/s2/5167509/b9b1
>
> Sheng Wu 吴晟
> Twitter, wusheng1108
>
>
> Sheng Wu <wu...@apache.org> 于2019年12月11日周三 上午8:41写道：
>
>> Hi All dev team
>>
>> This is a super important discussion and may require a vote later.
>> SkyWalking now supports JDK 6-13 in the agent side for a long time, and
>> is suffering the risk of RPC component bug too. gRPC has given up the
>> supports for JDK6 one year before.
>> Also ref to RedHat OpenJDK maintenance plan[1], OpenJDK6 has not been
>> supported in December 2016. Oracle JDK has similar storay.
>>
>> I want to initial that, SkyWalking should decide to give up the support
>> on JDK 1.6, and move to higher JDK requirement. The question will be, does
>> JDK 1.7 or 1.8 make more sense?
>>
>> All people in the dev channel, your responses are super important.
>>
>>
>> [1] https://access.redhat.com/articles/1299013
>>
>> Sheng Wu 吴晟
>>
>> Apache SkyWalking
>> Apache Incubator
>> Apache ShardingSphere, ECharts, DolphinScheduler podlings
>> Zipkin
>> Twitter, wusheng1108
>>
>