vivostar opened a new pull request, #1223:
URL: https://github.com/apache/bigtop/pull/1223
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### Description of PR
According to the descussion on the
[email](https://www.mail-archive.com/dev@bigtop.apache.org/msg26765.html),we
should add a python path detecting script for all bigtop componets.
### How was this patch tested?
1. build the bigtop-utils package
```shell
docker run --rm -v `pwd`:/ws --workdir /ws bigtop/slaves:trunk-centos-7 bash
-l -c './gradlew allclean ; ./gradlew bigtop-utils'
```
2. make repo
```shell
./gradlew repo
```
3. test bigtop-utils package by docker-hadoop.sh
```shell
./docker-hadoop.sh -dcp -d -k 'bigtop-utils' -L -r
file:///bigtop-home/output -c 1
```
4. login a container, and install python3 package from default distro repo
or from source
1) install from default repo
```shell
yum install -y python3
```
2) install from source
```shell
# install build dependencies
yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel
sqlite-devel readline-devel
yum install -y tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
libffi-devel
# get python3 source code
wget https://www.python.org/ftp/python/3.7.6/Python-3.7.6.tgz
tar xzvf Python-3.7.6.tgz
cd Python-3.7.6
./configure --prefix=/opt/python3
make && make install
```
5. check the python3 path detecting
```shell
. /usr/lib/bigtop-utils/bigtop-detect-pythonpath
echo $PAYTHON3_PATH
```
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'BIGTOP-3638. Your PR title ...')?
- [x] Make sure that newly added files do not have any licensing issues.
When in doubt refer to https://www.apache.org/licenses/
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