报错背景：
CDH断电重启后，cloudera-scm-server启动报错，
cloudera-scm-server 已死，但 pid 文件仍存
由于没有成熟的解决方案，于是我就重新安装了MySQL数据库，
并且重新赋予了各种权限。
这个时候cloudera-scm-server可以启动成功，cloudera-scm-agent也可以启动成功。
报错现象：
此时cloudera-scm-server和cloudera-scm-agent都能启动成功，
但是jps一下，没有服务
明明启动了agent，但是下面的服务都起不来。
报错原因：
这个时候就要看一下日志文件cloudera-scm-agent.log
tail -n 100 /opt/cm-5.15.1/log/cloudera-scm-agent/cloudera-scm-agent.log
看到一行报错
[root@master opt]# tail -n 100 /opt/cm-5.15.1/log/cloudera-scm-agent/cloudera-scm-agent.log [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '4754', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hadoop-0.20-mapreduce/sbin/Linux/task-controller'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/ssl-server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/ssl-server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.dist/conf/server.xml httpfs httpfs [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'httpfs:httpfs', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.dist/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.dist/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.dist/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/ssl/ssl-server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/ssl/ssl-server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/ssl-server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/ssl-server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/sqoop2/tomcat-conf.mr1/conf/server.xml sqoop2 sqoop [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'sqoop2:sqoop', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/sqoop2/tomcat-conf.mr1/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/sqoop2/tomcat-conf.mr1/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/sqoop2/tomcat-conf.mr1/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop hue hue [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'hue:hue', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop 0755 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0755', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.https/conf/server.xml httpfs httpfs [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'httpfs:httpfs', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.https/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.https/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/hadoop-httpfs/tomcat-conf.https/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https/conf/ssl/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.https.mr1/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/solr/tomcat-conf.https/conf/server.xml solr solr [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'solr:solr', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/solr/tomcat-conf.https/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/solr/tomcat-conf.https/conf/server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/solr/tomcat-conf.https/conf/server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chown: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/ssl-server.xml oozie oozie [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chown', 'oozie:oozie', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO chmod: /opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/ssl-server.xml 0750 [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['chmod', '0750', u'/opt/cloudera/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/etc/oozie/tomcat-conf.http.mr1/conf/ssl/ssl-server.xml'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Ensuring users/groups exist for new parcel KAFKA-3.1.1-1.3.1.1.p0.2. [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'kafka'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'kafka'] [29/Apr/2019 10:35:14 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/useradd', '-r', '-m', '-g', 'kafka', '-K', 'UMASK=022', '--home', '/var/lib/kafka', '--comment', 'Kafka', '--shell', '/sbin/nologin', 'kafka'] [29/Apr/2019 10:35:15 +0000] 2754 MainThread parcel INFO Ensuring correct file permissions for new parcel KAFKA-3.1.1-1.3.1.1.p0.2. [29/Apr/2019 10:35:15 +0000] 2754 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache [29/Apr/2019 10:35:16 +0000] 2754 MainThread client_configs INFO Loaded client config: <hbase-conf,/etc/hbase/conf.cloudera.hbase> <90,8014743985700882227> [29/Apr/2019 10:35:16 +0000] 2754 MainThread client_configs INFO Loaded client config: <hadoop-conf,/etc/hadoop/conf.cloudera.yarn> <92,-2128374979962437415> [29/Apr/2019 10:35:16 +0000] 2754 MainThread client_configs INFO Loaded client config: <kafka-conf,/etc/kafka/conf.cloudera.kafka> <50,-352371731053066898> [29/Apr/2019 10:35:16 +0000] 2754 MainThread client_configs INFO Loaded client config: <hive-conf,/etc/hive/conf.cloudera.hive> <90,-3132036662857147630> [29/Apr/2019 10:35:16 +0000] 2754 MainThread client_configs INFO Loaded client config: <hadoop-conf,/etc/hadoop/conf.cloudera.hdfs> <90,-8675592532172053281> [29/Apr/2019 10:35:16 +0000] 2754 MainThread agent ERROR Error, CM server guid updated, expected f4ec230a-2f55-460f-b132-cb45a16c3a1b, received 4760feb5-8e8c-416c-8337-2910fef890a0 [29/Apr/2019 10:35:18 +0000] 2754 MainThread agent INFO CM server guid: f4ec230a-2f55-460f-b132-cb45a16c3a1b [29/Apr/2019 10:35:18 +0000] 2754 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels [29/Apr/2019 10:35:18 +0000] 2754 MainThread agent WARNING Expected user root for /opt/cloudera/parcels but was cloudera-scm [29/Apr/2019 10:35:18 +0000] 2754 MainThread agent WARNING Expected group root for /opt/cloudera/parcels but was cloudera-scm [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Agent does create users/groups and apply file permissions [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Loading parcel manifest for: CDH-5.15.1-1.cdh5.15.1.p0.4 [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Loading parcel manifest for: KAFKA-3.1.1-1.3.1.1.p0.2 [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Ensuring users/groups exist for new parcel CDH-5.15.1-1.cdh5.15.1.p0.4. [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'hadoop'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'flume'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'hdfs'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'solr'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'zookeeper'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'llama'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'httpfs'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'mapred'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'sqoop'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'yarn'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'kms'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'hive'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'sqoop2'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'oozie'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'kudu'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'hbase'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'sentry'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'impala'] [29/Apr/2019 10:35:18 +0000] 2754 MainThread parcel INFO Executing command ['/usr/sbin/groupadd', '-r', 'spark']
意思就是：CM服务器guid更新，期望f4ec230a-2f55-460f-b132-cb45a16c3a1b，收到4760feb5-8e8c-416c-8337-2910fef890a0
一看就是和CM的guid有关系，所以就从这方面着手解决问题。
报错解决：
[root@master var]# find / -name cm_guid # 找到cm_guid这个文件所在的目录 /opt/cm-5.15.1/lib/cloudera-scm-agent/cm_guid [root@master var]# rm -rf /opt/cm-5.15.1/lib/cloudera-scm-agent/cm_guid # 删除这个目录（所有节点） [root@master var]# /opt/cm-5.15.1/etc/init.d/cloudera-scm-agent restart # 重启
但是重启之后，jps还是没有各个服务进程
再次查看报错日志
tail -n 100 /opt/cm-5.15.1/log/cloudera-scm-agent/cloudera-scm-agent.log
[29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-topics', '/usr/bi-topics', 'bin/kafka-topics', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-consumer-perf-tessr/bin/kafka-consumer-perf-test', 'bin/kafka-consumer-perf-test', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-config', '/usr/bi-config', 'bin/kafka-config', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-consumer-offset-c, '/usr/bin/kafka-consumer-offset-checker', 'bin/kafka-consumer-offset-checker', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-preferred-replicaon', '/usr/bin/kafka-preferred-replica-election', 'bin/kafka-preferred-replica-election', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-producer-perf-tessr/bin/kafka-producer-perf-test', 'bin/kafka-producer-perf-test', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread parcel INFO Executing command ['/opt/cm-5.15.1/lib64/cmf/service/common/alternatives.sh', 'deactivate', 'kafka-console-producer'/bin/kafka-console-producer', 'bin/kafka-console-producer', '10', 'False'] [29/Apr/2019 11:25:16 +0000] 31741 MainThread agent INFO Active parcel list updated; recalculating component info. [29/Apr/2019 11:25:16 +0000] 31741 MainThread throttling_logger WARNING CMF_AGENT_JAVA_HOME environment variable host override will be deprecated in future. JAVA_HOME setting configur CM server takes precedence over host agent override. Configure JAVA_HOME setting from CM server. [29/Apr/2019 11:25:17 +0000] 31741 MainThread throttling_logger INFO Identified java component java8 with full version java version "1.8.0_191" Java(TM) SE Runtime Environment (bui0_191-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode) for requested version . [29/Apr/2019 11:25:17 +0000] 31741 MainThread parcel_cache INFO Deleting unmanaged parcel CDH-5.15.1-1.cdh5.15.1.p0.4 [29/Apr/2019 11:25:19 +0000] 31741 MainThread parcel_cache INFO Deleting unmanaged parcel KAFKA-3.1.1-1.3.1.1.p0.2 [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Client configs to delete: set([<hadoop-conf,/etc/hadoop/conf.cloudera.yarn>, <hbase-conf,/etc/hbase/conf.cloudera. <kafka-conf,/etc/kafka/conf.cloudera.kafka>, <hive-conf,/etc/hive/conf.cloudera.hive>, <hadoop-conf,/etc/hadoop/conf.cloudera.hdfs>]) [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Client configs to deploy: set([]) [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Client configs to update: set([]) [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Removing alternative: kafka-conf, /etc/kafka/conf.cloudera.kafka [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Removing alternative: hadoop-conf, /etc/hadoop/conf.cloudera.yarn [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Removing alternative: hbase-conf, /etc/hbase/conf.cloudera.hbase [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Removing alternative: hive-conf, /etc/hive/conf.cloudera.hive [29/Apr/2019 11:25:19 +0000] 31741 MainThread client_configs INFO Removing alternative: hadoop-conf, /etc/hadoop/conf.cloudera.hdfs [29/Apr/2019 11:25:19 +0000] 31741 MainThread agent WARNING Long HB processing time: 8.13849806786 [29/Apr/2019 11:27:22 +0000] 31741 MainThread agent INFO Stopping agent... [29/Apr/2019 11:27:22 +0000] 31741 MainThread agent INFO No extant cgroups; unmounting any cgroup roots [29/Apr/2019 11:27:22 +0000] 31741 MainThread agent INFO 2 processes are being managed; Supervisor will continue to run. [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Bus STOPPING [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('master', 9000)) shut down [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Stopped thread '_TimeoutMonitor'. [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Bus STOPPED [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Bus STOPPING [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('master', 9000)) already shut down [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE No thread running for None. [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Bus STOPPED [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Bus EXITING [29/Apr/2019 11:27:22 +0000] 31741 MainThread _cplogging INFO [29/Apr/2019:11:27:22] ENGINE Bus EXITED [29/Apr/2019 11:27:22 +0000] 31741 MainThread agent INFO Agent exiting; caught signal 15 [29/Apr/2019 11:27:22 +0000] 31741 Dummy-14 daemonize WARNING Stopping daemon. [29/Apr/2019 11:27:23 +0000] 15811 MainThread __init__ INFO Agent UUID file was last modified at 2019-04-01 08:40:41.829000 [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO ================================================================================ [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO SCM Agent Version: 5.15.1 [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Agent Protocol Version: 4 [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Using Host ID: 956d89c6-e7df-48c2-916b-f2eefd5a058f [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Using directory: /opt/cm-5.15.1/run/cloudera-scm-agent [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Using supervisor binary path: /opt/cm-5.15.1/lib64/cmf/agent/build/env/bin/supervisord [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Neither verify_cert_file nor verify_cert_dir are configured. Not performing validation of server certificates in HTTunication. These options can be configured in this agent's config.ini file to enable certificate validation. [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Agent Logging Level: INFO [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO No command line vars [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Missing database jar: /usr/share/java/mysql-connector-java.jar (normal, if you're not using this database type) [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Missing database jar: /usr/share/java/oracle-connector-java.jar (normal, if you're not using this database type) [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Found database jar: /opt/cm-5.15.1/share/cmf/lib/postgresql-42.1.4.jre7.jar [29/Apr/2019 11:27:23 +0000] 15811 MainThread agent INFO Agent starting as pid 15811 user root(0) group root(0). [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Re-using pre-existing directory: /opt/cm-5.15.1/run/cloudera-scm-agent/cgroups [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found existing subsystem blkio at /sys/fs/cgroup/blkio [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found existing subsystem cpuacct at /sys/fs/cgroup/cpu,cpuacct [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found existing subsystem cpu at /sys/fs/cgroup/cpu,cpuacct [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found existing subsystem memory at /sys/fs/cgroup/memory [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found cgroups subsystem: cpu [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found cgroups subsystem: cpuacct [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found cgroups subsystem: memory [29/Apr/2019 11:27:25 +0000] 15811 MainThread cgroups INFO Found cgroups subsystem: blkio [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Found cgroups capabilities: {'has_memory': True, 'default_memory_limit_in_bytes': 8796093022207, 'default_memory_sof_in_bytes': 8796093022207, 'writable_cgroup_dot_procs': True, 'default_cpu_rt_runtime_us': 950000, 'has_cpu': True, 'default_blkio_weight': 1000, 'default_cpu_shares': 1024, 'has_cpuacue, 'has_blkio': True} [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Setting up supervisord event monitor. [29/Apr/2019 11:27:25 +0000] 15811 MainThread filesystem_map INFO Monitored nodev filesystem types: ['nfs', 'nfs4', 'tmpfs'] [29/Apr/2019 11:27:25 +0000] 15811 MainThread filesystem_map INFO Using timeout of 2.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread filesystem_map INFO Using join timeout of 0.100000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread filesystem_map INFO Using tolerance of 60.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread filesystem_map INFO Local filesystem types whitelist: ['ext2', 'ext3', 'ext4', 'xfs'] [29/Apr/2019 11:27:25 +0000] 15811 MainThread kt_renewer INFO Agent wide credential cache set to /opt/cm-5.15.1/run/cloudera-scm-agent/krb5cc_cm_agent_0 [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Using metrics_url_timeout_seconds of 30.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Using task_metrics_timeout_seconds of 5.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Using max_collection_wait_seconds of 10.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread metrics INFO Importing tasktracker metric schema from file /opt/cm-5.15.1/lib64/cmf/agent/build/env/lib/python2.7/site-packages/c.1-py2.7.egg/cmf/monitor/tasktracker/schema.json [29/Apr/2019 11:27:25 +0000] 15811 MainThread ntp_monitor INFO Using timeout of 2.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread dns_names INFO Using timeout of 30.000000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread __init__ INFO Created DNS monitor. [29/Apr/2019 11:27:25 +0000] 15811 MainThread stacks_collection_manager INFO Using max_uncompressed_file_size_bytes: 5242880 [29/Apr/2019 11:27:25 +0000] 15811 MainThread __init__ INFO Importing metric schema from file /opt/cm-5.15.1/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.15.1-py/cmf/monitor/schema.json [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Supervised processes will add the following to their environment (in addition to the supervisor's env): {'CDH_PARQUE: '/usr/lib/parquet', 'JSVC_HOME': '/usr/libexec/bigtop-utils', 'CMF_PACKAGE_DIR': '/opt/cm-5.15.1/lib64/cmf/service', 'CDH_HADOOP_BIN': '/usr/bin/hadoop', 'MGMT_HOME': '/opt/cm-5.15.1cmf', 'CDH_IMPALA_HOME': '/usr/lib/impala', 'CDH_YARN_HOME': '/usr/lib/hadoop-yarn', 'CDH_HDFS_HOME': '/usr/lib/hadoop-hdfs', 'PATH': '/sbin:/usr/sbin:/bin:/usr/bin', 'CDH_HUE_PLUGINS_'/usr/lib/hadoop', 'CM_STATUS_CODES': u'STATUS_NONE HDFS_DFS_DIR_NOT_EMPTY HBASE_TABLE_DISABLED HBASE_TABLE_ENABLED JOBTRACKER_IN_STANDBY_MODE YARN_RM_IN_STANDBY_MODE', 'KEYTRUSTEE_KP_'/usr/share/keytrustee-keyprovider', 'CLOUDERA_ORACLE_CONNECTOR_JAR': '/usr/share/java/oracle-connector-java.jar', 'CDH_SQOOP2_HOME': '/usr/lib/sqoop2', 'KEYTRUSTEE_SERVER_HOME': '/usrytrustee-server', 'CDH_MR2_HOME': '/usr/lib/hadoop-mapreduce', 'HIVE_DEFAULT_XML': '/etc/hive/conf.dist/hive-default.xml', 'CLOUDERA_POSTGRESQL_JDBC_JAR': '/opt/cm-5.15.1/share/cmf/libesql-42.1.4.jre7.jar', 'CDH_KMS_HOME': '/usr/lib/hadoop-kms', 'CDH_HBASE_HOME': '/usr/lib/hbase', 'CDH_SQOOP_HOME': '/usr/lib/sqoop', 'WEBHCAT_DEFAULT_XML': '/etc/hive-webhcat/conf.disat-default.xml', 'CDH_OOZIE_HOME': '/usr/lib/oozie', 'CDH_ZOOKEEPER_HOME': '/usr/lib/zookeeper', 'CDH_HUE_HOME': '/usr/lib/hue', 'CLOUDERA_MYSQL_CONNECTOR_JAR': '/usr/share/java/mysql-or-java.jar', 'CDH_HBASE_INDEXER_HOME': '/usr/lib/hbase-solr', 'CDH_MR1_HOME': '/usr/lib/hadoop-0.20-mapreduce', 'CDH_SOLR_HOME': '/usr/lib/solr', 'CDH_PIG_HOME': '/usr/lib/pig', 'CDH_HOME': '/usr/lib/sentry', 'CDH_CRUNCH_HOME': '/usr/lib/crunch', 'CDH_LLAMA_HOME': '/usr/lib/llama/', 'CDH_HTTPFS_HOME': '/usr/lib/hadoop-httpfs', 'ROOT': '/opt/cm-5.15.1/lib64/cmf', 'COP_HOME': '/usr/lib/hadoop', 'CDH_HIVE_HOME': '/usr/lib/hive', 'ORACLE_HOME': '/usr/share/oracle/instantclient', 'CDH_HCAT_HOME': '/usr/lib/hive-hcatalog', 'CDH_KAFKA_HOME': '/usr/lib/ 'CDH_SPARK_HOME': '/usr/lib/spark', 'TOMCAT_HOME': '/usr/lib/bigtop-tomcat', 'CDH_FLUME_HOME': '/usr/lib/flume-ng'} [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO To override these variables, use /etc/cloudera-scm-agent/config.ini. Environment variables for CDH locations are nothen CDH is installed from parcels. [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Re-using pre-existing directory: /opt/cm-5.15.1/run/cloudera-scm-agent/process [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Re-using pre-existing directory: /opt/cm-5.15.1/run/cloudera-scm-agent/supervisor [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Re-using pre-existing directory: /opt/cm-5.15.1/run/cloudera-scm-agent/flood [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Re-using pre-existing directory: /opt/cm-5.15.1/run/cloudera-scm-agent/supervisor/include [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Supervisor version: 3.0, pid: 3341 [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Connecting to previous supervisor: agent-2721-1556504529. [29/Apr/2019 11:27:25 +0000] 15811 MainThread status_server INFO Using maximum impala profile bundle size of 1073741824 bytes. [29/Apr/2019 11:27:25 +0000] 15811 MainThread status_server INFO Using maximum stacks log bundle size of 1073741824 bytes. [29/Apr/2019 11:27:25 +0000] 15811 MainThread _cplogging INFO [29/Apr/2019:11:27:25] ENGINE Bus STARTING [29/Apr/2019 11:27:25 +0000] 15811 MainThread _cplogging INFO [29/Apr/2019:11:27:25] ENGINE Started monitor thread '_TimeoutMonitor'. [29/Apr/2019 11:27:25 +0000] 15811 MainThread _cplogging INFO [29/Apr/2019:11:27:25] ENGINE Serving on master:9000 [29/Apr/2019 11:27:25 +0000] 15811 MainThread _cplogging INFO [29/Apr/2019:11:27:25] ENGINE Bus STARTED [29/Apr/2019 11:27:25 +0000] 15811 MainThread __init__ INFO New monitor: (<cmf.monitor.host.HostMonitor object at 0x7ffb5aa8add0>,) [29/Apr/2019 11:27:25 +0000] 15811 MonitorDaemon-Scheduler __init__ INFO Monitor ready to report: ('HostMonitor',) [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Setting default socket timeout to 45 [29/Apr/2019 11:27:25 +0000] 15811 Monitor-HostMonitor network_interfaces INFO NIC iface eth0 doesn't support ETHTOOL (95) [29/Apr/2019 11:27:25 +0000] 15811 Monitor-HostMonitor throttling_logger ERROR Error getting directory attributes for /opt/cm-5.15.1/log/cloudera-scm-agent Traceback (most recent call last): File "/opt/cm-5.15.1/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.15.1-py2.7.egg/cmf/monitor/dir_monitor.py", line 90, in _get_directory_attributes name = pwd.getpwuid(uid)[0] KeyError: 'getpwuid(): uid not found: 1106' [29/Apr/2019 11:27:25 +0000] 15811 MainThread heartbeat_tracker INFO HB stats (seconds): num:1 LIFE_MIN:0.03 min:0.03 mean:0.03 max:0.03 LIFE_MAX:0.03 [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO CM server guid: 4760feb5-8e8c-416c-8337-2910fef890a0 [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent WARNING Expected user root for /opt/cloudera/parcels but was cloudera-scm [29/Apr/2019 11:27:25 +0000] 15811 MainThread agent WARNING Expected group root for /opt/cloudera/parcels but was cloudera-scm [29/Apr/2019 11:27:25 +0000] 15811 MainThread parcel INFO Agent does create users/groups and apply file permissions [29/Apr/2019 11:27:25 +0000] 15811 MainThread downloader INFO Downloader path: /opt/cloudera/parcel-cache [29/Apr/2019 11:27:25 +0000] 15811 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache [29/Apr/2019 11:27:26 +0000] 15811 MainThread agent INFO Flood daemon (re)start attempt [29/Apr/2019 11:27:27 +0000] 15811 MainThread agent INFO Triggering supervisord update. [29/Apr/2019 11:27:28 +0000] 15811 MainThread agent INFO Active parcel list updated; recalculating component info. [29/Apr/2019 11:27:28 +0000] 15811 MainThread throttling_logger WARNING CMF_AGENT_JAVA_HOME environment variable host override will be deprecated in future. JAVA_HOME setting configur CM server takes precedence over host agent override. Configure JAVA_HOME setting from CM server. [29/Apr/2019 11:27:29 +0000] 15811 MainThread throttling_logger INFO Identified java component java8 with full version java version "1.8.0_191" Java(TM) SE Runtime Environment (bui0_191-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode) for requested version .
报错信息：ERROR Error getting directory attributes for /opt/cm-5.15.1/log/cloudera-scm-agent
日志翻译：错误获取/opt/cm-5.15.1/log/cloudera-scm-agent的目录属性时出错
这个报错我找了很多资料也没有解决。
但是我发现一个现象，就是进到CDH的Web界面之后，由于uuid的改变，原来的界面都没有了，需要重新安装各种服务。
我看到这里就崩溃了，重装的CDH。