Cloudera 安装parcel hang的问题

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现象

在安装Cloudera 服务的时候，到安装Parcel那一步时，有一个节点安装parcel一直hang住不动，如下图
这里写图片描述
查看/var/log/cloudera-scm-agent/cloudera-scm-agent.log日志一直报以下错误信息，

Traceback (most recent call last):  File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.7.1-py2.7.egg/cmf/agent.py", line 686, in start    self._init_after_first_heartbeat_response(heartbeat_response["data"])  File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.7.1-py2.7.egg/cmf/agent.py", line 816, in _init_after_first_heartbeat_response    self.client_configs.load()  File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.7.1-py2.7.egg/cmf/client_configs.py", line 682, in load    new_deployed.update(self._lookup_alternatives(fname))  File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.7.1-py2.7.egg/cmf/client_configs.py", line 432, in _lookup_alternatives    return self._parse_alternatives(alt_name, out)  File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.7.1-py2.7.egg/cmf/client_configs.py", line 444, in _parse_alternatives    path, _, _, priority_str = line.rstrip().split(" ")ValueError: too many values to unpack

原因

经网上查询相关解决方案，指明与OpenJDK有关，于是查看系统中的JDK有多个版本

[root@esggy-del-n001 java]# rpm -qa | grep jdkldapjdk-4.19-1.el7.noarchjdk-1.7.0_71-fcs.x86_64copy-jdk-configs-2.2-3.el7.noarchjava-1.8.0-openjdk-headless-1.8.0.131-11.b12.el7.x86_64java-1.8.0-openjdk-1.8.0.131-11.b12.el7.x86_64nodep[root@esggy-del-n001 java]# ls /usr/java/default  jdk1.7.0_67-cloudera  jdk1.7.0_71  latest[root@esggy-del-n001 ~]# java -versionjava version "1.7.0_71"Java(TM) SE Runtime Environment (build 1.7.0_71-b14)Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)

解决

解决方案为卸载OpenJDK，执行以下命令卸载当前节点的OpenJDK，解决问题

rpm -e java-1.8.0-openjdk-headless-1.8.0.131-11.b12.el7.x86_64 java-1.8.0-openjdk-1.8.0.131-11.b12.el7.x86_64 --nodeps

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