This is an automated email from the ASF dual-hosted git repository.
wusheng pushed a commit to branch tsw
in repository https://gitbox.apache.org/repos/asf/skywalking-website.git
commit fbbdead36aa91ccad678fdb8538e5cf9d67e367b
Author: Wu Sheng <wu.sh...@foxmail.com>
AuthorDate: Sat Jan 23 16:47:25 2021 +0800
Brief the event `[Resolved][License Issue] Tencent Cloud TSW service
violates the Apache 2.0 License when using SkyWalking.`.
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+---
+title: "[Resolved][License Issue] Tencent Cloud TSW service violates the
Apache 2.0 License when using SkyWalking."
+date: 2021-01-22
+author: Apache SkyWalking
+description: "Tencent Cloud Service, Tencent Service Watche - TSW, have been
reported as it violates Apache 2.0 License requirements."
+---
+
+[Apache SkyWalking](https://skywalking.apache.org) is an open source APM for
distributed system, Apache Software Foundation top-level project.
+
+At Jan. 11th, 2021, we noticed the Tencent Cloud Service, [Tencent Service
Watche - TSW](https://cloud.tencent.com/product/tsw), for first time.
+Due to the similar short name, which SkyWalking is also called SW in the
community, we connected with the service team of Tencent Cloud, and kindly
asked.
+
+They used to replay, **TSW is purely developed by Tencent team itself, which
doesn't have any code dependency on SkyWalking.**. We didn't push harder.
+
+But one week later, Jan 18th, 2021, our V.P., Sheng got the report again from
Haoyang SkyWalking PMC member, through WeChat DM(direct message),.
+He provided complete evidence to prove TSW actually re-distributed the
SkyWalking's Java agent.
+We keep one copy of their agent's distribution(at Jan. 18th), you could be
downloaded
[here](https://drive.google.com/file/d/1wCnUW0n-0qIoHuNI2pw8iAaVyRBrSuI7/view).
+
+Some typically evidences are here
+
+-
[ServiceManager](https://github.com/apache/skywalking/blob/v8.3.0/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/boot/ServiceManager.java)
is copied and package-name changed in the TSW's agent.
+
+
+-
[ContextManager](https://github.com/apache/skywalking/blob/v8.3.0/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/context/ContextManager.java
) is copied and ackage-name changed in the TSW's agent.
+
+
+At the same time, we checked their tsw-client-package.zip, it didn't include
the SkyWalking's LICENSE and NOTICE, also, they didn't mention TSW agent is the
re-ditribution SkyWalking on their website.
+
+With all above information, we had enough reason to believe, from the tech
perspective, they were violating the Apache 2.0 License's requirements.
+From the 18th Jan., 2021, we sent mail `[Apache 2.0 License Violation] Tencent
Cloud TSW service doesn't follow the Apache 2.0 License` to brief the
SkyWalking PMC, and
+took the following actions to connect with Tencent.
+- MaDe direct call to Tencent Open Source Office.
+- Connected with Tencent Cloud TVP program committee, as Sheng Wu(Our VP) is a
Tencent Cloud TVP.
+- Talked with the Tencent Cloud team lead.
+
+**In all above channels, we provided the evidences of coyp-redistribution
hebaviors, requested them to revaluate their statements on the website, and
follow the License's requirements.**
+
+## Resolution
+At Jan. 19th night, UTC+8, 2021. We received response from the Tencent cloud
team. They admited their violation behaviors, and did following changes
+1. Tencent Cloud TSW service page states, the agent is the fork
version(re-distribution) of Apache SkyWalking agent.
+
+
+2. TSW agent distributions include the SkyWalking's License and NOTICE. Below
is the screenshot, you could download from their product page. We keep a copy
of their Jan. 19th 2021 at
[here](https://drive.google.com/file/d/1Z9EkOpi-lyFosmvuoqPZ57sY-gLdwNLq/view).
+
+
+We have updated the status to the PMC mail list. This license violation issue
has been resolved for now.
+
+##### The SkyWalking community and program management committee will keep our
eyes on Tencent TSW.
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