cloudera manager的7180 web界面訪問不了的解決辦法（圖文詳解）
說在前面的話html
個人機器是總共4臺，分別爲ubuntucmbigdata一、ubuntucmbigdata二、ubuntucmbigdata3和ubuntucmbigdata4。（注意啦，如下是針對Ubuntu系統的）java
在ubuntucmbigdata1上執行了python
sudo apt-get install cloudera-manager-daemons cloudera-manager-server sudo apt-get install cloudera-manager-daemons cloudera-manager-agent
即，ubuntucmbigdata1是既作server，又作agent。mysql
在ubuntucmbigdata二、ubuntucmbigdata3和ubuntucmbigdata4上執行了web
sudo apt-get install cloudera-manager-daemons cloudera-manager-agent
即，ubuntucmbigdata二、三、和4是隻作agent。sql
在ubuntucmbigdata一、ubuntucmbigdata二、ubuntucmbigdata三、ubuntucmbigdata4上shell
新建文件sudo vi /etc/apt/sources.list.d/cloudera-manager.list，複製如下內容到cloudera.list裏ubuntu
# Packages for Cloudera Manager, Version 5, on Ubuntu 14.04 x86_64 deb [arch=amd64] http://archive.cloudera.com/cm5/ubuntu/trusty/amd64/cm trusty-cm5 contrib deb-src http://archive.cloudera.com/cm5/ubuntu/trusty/amd64/cm trusty-cm5 contrib
而且在在ubuntucmbigdata一、ubuntucmbigdata二、ubuntucmbigdata三、ubuntucmbigdata4上centos
向apt添加cloudera源公鑰，在全部節點執行以下命令：緩存
curl -s http://archive.cloudera.com/cm5/ubuntu/trusty/amd64/cm/archive.key | sudo apt-key add -
而後，再
sudo apt-get update
問題詳情
解決辦法
思路1：
Starting cloudera-scm-server: * Couldn't start cloudera-scm-server的解決辦法（圖文詳解）
思路2：
查看cloudera-scm-agent的運行日誌
bigdata@ubuntucmbigdata1:/opt/cm-5.6.0/log$ ll total 20 drwxr-xr-x 5 bigdata bigdata 4096 2月 12 2016 ./ drwxr-xr-x 8 bigdata bigdata 4096 2月 12 2016 ../ drwxr-xr-x 2 bigdata bigdata 4096 6月 25 19:53 cloudera-scm-agent/ drwxr-xr-x 2 bigdata bigdata 4096 6月 25 19:52 cloudera-scm-server/ drwxr-xr-x 2 bigdata bigdata 4096 2月 12 2016 cmf/ bigdata@ubuntucmbigdata1:/opt/cm-5.6.0/log$ cd cloudera-scm-agent/ bigdata@ubuntucmbigdata1:/opt/cm-5.6.0/log/cloudera-scm-agent$ ll total 40 drwxr-xr-x 2 bigdata bigdata 4096 6月 25 19:53 ./ drwxr-xr-x 5 bigdata bigdata 4096 2月 12 2016 ../ -rw-r--r-- 1 root root 14757 6月 25 19:57 cloudera-scm-agent.log -rw-r--r-- 1 root root 935 6月 25 19:53 cloudera-scm-agent.out -rw-r--r-- 1 root root 202 6月 25 19:53 cmf_listener.log -rw-r--r-- 1 root root 539 6月 25 19:53 supervisord.log -rw-r--r-- 1 root root 449 6月 25 19:53 supervisord.out bigdata@ubuntucmbigdata1:/opt/cm-5.6.0/log/cloudera-scm-agent$ cat cloudera-scm-agent.out [25/Jun/2017 19:53:01 +0000] 9651 MainThread agent INFO SCM Agent Version: 5.6.0 [25/Jun/2017 19:53:01 +0000] 9651 MainThread util INFO Generating Agent UUID for the first time: '/opt/cm-5.6.0/lib/cloudera-scm-agent/uuid' [25/Jun/2017 19:53:01 +0000] 9651 MainThread agent INFO Adding env vars that start with CMF_AGENT_ [25/Jun/2017 19:53:01 +0000] 9651 MainThread agent INFO explicitly passing env var to supervisee: MGMT_HOME: /opt/cm-5.6.0/share/cmf [25/Jun/2017 19:53:01 +0000] 9651 MainThread agent INFO explicitly passing env var to supervisee: ROOT: /opt/cm-5.6.0/lib/cmf [25/Jun/2017 19:53:01 +0000] 9651 MainThread agent INFO Logging to /opt/cm-5.6.0/log/cloudera-scm-agent/cloudera-scm-agent.log Error: could not find config file /opt/cm-5.6.0/run/cloudera-scm-agent/supervisor/supervisord.conf For help, use /opt/cm-5.6.0/lib/cmf/agent/src/cmf/agent.py -h bigdata@ubuntucmbigdata1:/opt/cm-5.6.0/log/cloudera-scm-agent$
當cloudera-scm-server、cloudera-scm-agent start啓動成功以後，可經過http://主節點IP:7180來訪問CM，用戶名密碼都爲admin。剩下的就是一直點下一步和根據具體的需求來配置集羣了。
注意，在此以前。
注意，在此以前。
ubuntucmbigdata1機器上，則須要執行
bigdata@ubuntucmbigdata1:~$ sudo /usr/share/cmf/schema/scm_prepare_database.sh mysql scm scm scm_password [sudo] password for bigdata: Sorry, try again. [sudo] password for bigdata: JAVA_HOME=/usr/java/jdk1.7.0_80 Verifying that we can write to /etc/cloudera-scm-server Creating SCM configuration file in /etc/cloudera-scm-server Executing: /usr/java/jdk1.7.0_80/bin/java -cp /usr/share/java/mysql-connector-java.jar:/usr/share/java/oracle-connector-java.jar:/usr/share/cmf/schema/../lib/* com.cloudera.enterprise.dbutil.DbCommandExecutor /etc/cloudera-scm-server/db.properties com.cloudera.cmf.db. [ main] DbCommandExecutor INFO Successfully connected to database. All done, your SCM database is configured correctly!
bigdata@ubuntucmbigdata1:~$ sudo service cloudera-scm-server start
[sudo] password for bigdata:
Starting cloudera-scm-server: * cloudera-scm-server started
bigdata@ubuntucmbigdata1:~$
bigdata@ubuntucmbigdata1:~$ sudo service cloudera-scm-agent start
[sudo] password for bigdata:
Starting cloudera-scm-agent: * cloudera-scm-agent started
bigdata@ubuntucmbigdata1:~$
而後，在ubuntucmbigdata二、ubuntucmbigdata三、ubuntucmbigdata4上
bigdata@ubuntucmbigdata2:~$ sudo service cloudera-scm-agent start
[sudo] password for bigdata:
Starting cloudera-scm-agent: * cloudera-scm-agent started
bigdata@ubuntucmbigdata2:~$
bigdata@ubuntucmbigdata3:~$ sudo service cloudera-scm-agent start
[sudo] password for bigdata:
Starting cloudera-scm-agent: * cloudera-scm-agent started
bigdata@ubuntucmbigdata3:~$
bigdata@ubuntucmbigdata4:~$ sudo service cloudera-scm-agent start
[sudo] password for bigdata:
Starting cloudera-scm-agent: * cloudera-scm-agent started
bigdata@ubuntucmbigdata4:~$
思路3：
關閉這臺機器的防火牆
bigdata@ubuntucmbigdata1:/opt$ sudo ufw disable Firewall stopped and disabled on system startup bigdata@ubuntucmbigdata1:/opt$ sudo ufw status Status: inactive bigdata@ubuntucmbigdata1:/opt$
思路4：
bigdata@ubuntucmbigdata1:/opt/cm-5.6.0/etc$ netstat -nltp (No info could be read for "-p": geteuid()=1000 but you should be root.) Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:19001 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:6011 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:6012 0.0.0.0:* LISTEN - tcp 0 0 127.0.1.1:9000 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN - tcp6 0 0 :::22 :::* LISTEN - tcp6 0 0 ::1:631 :::* LISTEN - tcp6 0 0 ::1:6010 :::* LISTEN - tcp6 0 0 ::1:6011 :::* LISTEN - tcp6 0 0 ::1:6012 :::* LISTEN -
思路5：
cloudera-scm-server啓動時出現Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not open connection問題解決方法（圖文詳解）
思路6：
時間同步
ntpdate pool.ntp.org
通常前面的6種思路是必定能夠解決cloudera manager的7180 web界面訪問不了
思路7：（萬不得已）
最戳的辦法，就是
http://www.aboutyun.com/thread-8992-1-1.html （包含centos、ubuntu、debian和rehat各版本都有）
卸載它，從新來過。
正用得上，剛安裝好的CDH5的CM server啓不來，只好所有四節點卸載來過。
如在ubuntu系統下
bigdata@ubuntucmbigdata1:/opt/softwares/cm-5.6.0$ sudo rm -Rf /usr/share/cmf /var/lib/cloudera* /var/cache/yum/cloudera* bigdata@ubuntucmbigdata1:/opt/softwares/cm-5.6.0$ sudo apt-get purge 'cloudera-manager-*' bigdata@ubuntucmbigdata1:/opt/softwares/cm-5.6.0$ sudo apt-get purge 'cloudera-manager-*' avro-tools crunch flume-ng hadoop-hdfs-fuse hadoop-hdfs-nfs3 hadoop-httpfs hbase-solr hive-hbase hive-webhcat hue-beeswax hue-hbase hue-impala hue-pig hue-plugins hue-rdbms hue-search hue-spark hue-sqoop hue-zookeeper impala impala-shell kite llama mahout oozie pig pig-udf-datafu search sentry solr-mapreduce spark-python sqoop sqoop2 whirr
bigdata@ubuntucmbigdata1:/opt/softwares/cm-5.6.0$ sudo apt-get clean
bigdata@ubuntucmbigdata1:/opt/softwares/cm-5.6.0$ sudo rm -Rf /usr/share/cmf /var/lib/cloudera* /var/cache/yum/cloudera* /var/log/cloudera* /var/run/cloudera*
bigdata@ubuntucmbigdata1:/opt/softwares/cm-5.6.0$ sudo rm -Rf /var/cache/apt/archives/cloudera*
再進一步卸載完全乾淨
見
Cloudera Manager卸載筆記
一、經過管理平臺分別中止組件服務和Cloudera Management Service
二、經過管理平臺註銷並移除Parcles （在控制檯註銷並移除，不管是安裝的Parcles仍是未安裝的Parcles）
三、中止後臺服務
sudo service cloudera-scm-agent stop
sudo service cloudera-scm-server stop
sudo service cloudera-scm-server-db stop
sudo service mysqld stop
四、卸載Cloudera Manager Server
執行命令：sudo /usr/share/cmf/uninstall-cloudera-manager.sh
五、清理配置和緩存信息
在全部agent上執行：sudo umount -v /var/run/cloudera-scm-agent/process
在全部主機上執行：sudo rm -rf /usr/share/cmf;
sudo rm -rf /var/lib/cloudera*;
sudo rm -rf /var/cache/yum/x86_64/6/cloudera*;
sudo rm -rf /var/log/cloudera*;
sudo rm -rf /var/run/cloudera* /etc/cloudera*
六、卸載rpm安裝包
1）查看 rpm -qa | grep cloudera
2）卸載 for f in `rpm -qa | grep cloudera ` ; do sudo rpm -e ${f} ; done
七、清理安裝文件
sudo rm -rf /var/lib/hadoop-* /var/lib/impala /var/lib/solr /var/lib/zookeeper /var/lib/hue /var/lib/oozie /var/lib/pgsql /var/lib/sqoop2 /data/dfs/ /data/impala/ /data/yarn/ /dfs/ /impala/ /yarn/ /var/run/hadoop-*/ /var/run/hdfs-*/ /usr/bin/hadoop* /usr/bin/zookeeper* /usr/bin/hbase* /usr/bin/hive* /usr/bin/hdfs /usr/bin/mapred /usr/bin/yarn /usr/bin/sqoop* /usr/bin/oozie /etc/hadoop* /etc/zookeeper* /etc/hive* /etc/hue /etc/impala /etc/sqoop* /etc/oozie /etc/hbase* /etc/hcatalog
略過其它軟件，只刪除hadoop相關
sudo rm -rf ` find /var/lib/alternatives/* ! -name "mta" ! -name "print" ! -name "zlibrary-ui" -mtime -3`
八、若是有hadoop先關進程還在，則殺死
for u in hdfs mapred cloudera-scm hbase hue zookeeper oozie hive impala flume; do sudo kill $(ps -u $u -o pid=); done
九、清理parcel
sudo rm -rf /opt/cloudera/parcel-cache /opt/cloudera/parcels
十、清理組件用戶
sudo userdel hue;sudo userdel impala;sudo userdel spark;sudo userdel sentry;sudo userdel sqoop2;sudo userdel hbase;sudo userdel oozie;sudo userdel yarn;sudo userdel mapred;sudo userdel zookeeper;sudo userdel httpfs;sudo userdel solr;sudo userdel kms;sudo userdel hive;sudo userdel flume;sudo userdel hdfs;sudo userdel sqoop;sudo userdel llama;sudo userdel cloudera-scm;sudo userdel postgres;
而後，就能夠繼續了。（這是針對bin方式來安裝）
更多安裝方法，請見
Ubuntu14.04下完美安裝cloudermanage多種方式（圖文詳解）（博主推薦）
也許，你在卸載中，會遇到以下問題
Clouder Manager安裝時出現please remove the following file: /etc/cloudera-scm-server/db.properties問題解決（圖文詳解）
最後成功！
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