安裝cdh集群添加服務(wù)器安裝agent出現(xiàn)失敗，日志如下

[02/Apr/2019 17:48:26 +0000] 46731 MainThread agent INFO CM server guid: 7cda865f-a833-40d1-9fa6-761631c74326

[02/Apr/2019 17:48:26 +0000] 46731 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels

[02/Apr/2019 17:48:26 +0000] 46731 MainThread parcel INFO Agent does create users/groups and apply file permissions

[02/Apr/2019 17:48:26 +0000] 46731 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache

[02/Apr/2019 17:48:26 +0000] 46731 MainThread agent ERROR Error, CM server guid updated, expected 7cda865f-a833-40d1-9fa6-761631c74326, received e2678b78-7c5e-4703-91b6-c52e2875988c

[02/Apr/2019 17:48:31 +0000] 46731 MainThread agent INFO CM server guid: 7cda865f-a833-40d1-9fa6-761631c74326

[02/Apr/2019 17:48:31 +0000] 46731 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels

[02/Apr/2019 17:48:31 +0000] 46731 MainThread parcel INFO Agent does create users/groups and apply file permissions

[02/Apr/2019 17:48:31 +0000] 46731 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache

[02/Apr/2019 17:48:31 +0000] 46731 MainThread agent ERROR Error, CM server guid updated, expected 7cda865f-a833-40d1-9fa6-761631c74326, received e2678b78-7c5e-4703-91b6-c52e2875988c

[02/Apr/2019 17:48:36 +0000] 46731 MainThread agent INFO CM server guid: 7cda865f-a833-40d1-9fa6-761631c74326

[02/Apr/2019 17:48:36 +0000] 46731 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels

[02/Apr/2019 17:48:36 +0000] 46731 MainThread parcel INFO Agent does create users/groups and apply file permissions

[02/Apr/2019 17:48:36 +0000] 46731 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache

[02/Apr/2019 17:48:36 +0000] 46731 MainThread agent ERROR Error, CM server guid updated, expected 7cda865f-a833-40d1-9fa6-761631c74326, received e2678b78-7c5e-4703-91b6-c52e2875988c

產(chǎn)生的原因是服務(wù)器以前作為集群節(jié)點安裝過agent服務(wù)，再次使用時沒有卸載干凈。

解決辦法：

rm -rf /var/lib/cloudera-scm-agent/cm_guid

service cloudera-scm-agent restart

總結(jié)

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