* improvement:check status of taskInstance from cache
* issue5572 use timer instead of while&sleep; consider concurrent modification
* use computeifpresent instead of lock
* simplify getByTaskInstanceId function
* add ut for TaskInstanceCacheManagerImpl; fix bug in TaskInstanceCacheManagerImpl
* add Apache license header;add test class in root pom
[Feature#3961]Registry SPI
All the logical structure of the registry must be converted into a tree structure within the system, so some plug-ins must be converted internally, such as ETCD
The registry supports distributed locks.
todo: The specific information about the registration center of the API module needs to be adjusted.
* improvement:check status of taskInstance from cache
* issue5572 use timer instead of while&sleep; consider concurrent modification
* use computeifpresent instead of lock
* simplify getByTaskInstanceId function
* add ut for TaskInstanceCacheManagerImpl; fix bug in TaskInstanceCacheManagerImpl
* add Apache license header;add test class in root pom
[Feature#3961]Registry SPI
All the logical structure of the registry must be converted into a tree structure within the system, so some plug-ins must be converted internally, such as ETCD
The registry supports distributed locks.
todo: The specific information about the registration center of the API module needs to be adjusted.
* [Bug][Master] remove check with executePath when kill yarn job
* [Bug][Master] init execute path if not exist
* [Bug][Master] move createWorkDirIfAbsent out side of executePath calculate part
Co-authored-by: wanggang <wanggy01@servyou.com.cn>
* [Improvement][Docker] Support more configurations and improve image for python
* [Improvement][K8s] Support more configurations, more service accesses, and reduce the duplication configurations
* [Improvement][Python] Improve the compatibility of python home
* [Improvement][Install] Fix install config and install.sh
* [Improvement][Install] Fix workflow ut
* [Improvement][Docker] Optimize docker-swarm/check script
* [Improvement][DB] Update default username and password of database
* Update comments in master/worker.properties
* Specify version for all images
* [Improvement][Docker] Optimize PS1 and WORKDIR
* [Improvement][SQL] Reduce heap size to 64m in create-dolphinscheduler.sh and upgrade-dolphinscheduler.sh
* [Fix-5431][K8s] Fix master and worker cannot get the right address with custom DNS
* Create SparkparametersTest.java
Add a test case
* Update and rename SparkparametersTest.java to SparkParametersTest.java
* Update pom.xml
add SparkParametersTest.java in pom file
* Optimize dependencies between modules.
* update module-alert dependency.
* add repository in the pom xml.
* update Central Repository in the pom.xml.
* Fix ProcessService ut
* codeStyle
* Fix AlertPlugin ut
* Fix AlertPlugin ut
* Fix server module ut
* Fix server module ut
* Fix api ut
* codeStyle
Co-authored-by: JinyLeeChina <297062848@qq.com>