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Title | Views | Posted |
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2212 | 12-12-2019 03:28 AM |
07-22-2020
07:21 AM
Thanks a lot, Paras. pdev
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07-22-2020
06:24 AM
Thanks, Paras will try and let you know. One more question, do BDR works between two different CDH versions? like 5.14 and 5.16 ? pdev
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07-21-2020
06:57 AM
Hi,
I am running cdh 5.14.0 cluster version both on Prod and DR cluster. Both cluster are Kerberos and TLS enabled with the same kdc server.
Could anyone guide me on how to do BDR between Kerberos enabled clusters. As I was not able to find any proper guide on the Cloudera website.
Please help me or provide any docs related to this.
Appreciate your help.
Thanks
pdev
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03-06-2020
10:35 PM
Hi, Thanks for the reply.Actually we do not have any DNS.But when this error came,then for cross verification i Checked all principles in KDC server. In those principles , zookeeper service principal was absent. Dont know the reason,whycloudera manager was not able to create principal only for zookeeper. Waiting for your response. Thanks Pdev
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03-06-2020
06:29 AM
Hello,
We are running CDH 5.14.0.We were setting up kerberos on our cluster.For this we were trying with MIT kerberos.Please see the Krb5.conf and kdc.conf files details as below.
krb5.conf:
]$ cat /etc/krb5.conf [libdefaults] default_realm = HADOOP.COM dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h renew_lifetime = 7d forwardable = true default_tgs_enctypes = aes256-cts-hmac-sha1-96 aes128-cts-hmac-sha1-96 arcfour-hmac-md5 default_tkt_enctypes = aes256-cts-hmac-sha1-96 aes128-cts-hmac-sha1-96 arcfour-hmac-md5 permitted_enctypes = aes256-cts-hmac-sha1-96 aes128-cts-hmac-sha1-96 arcfour-hmac-md5
[realms] HADOOP.COM = { kdc = hadoop-admin admin_server = hadoop-admin }
kdc.conf:
sudo cat /var/kerberos/krb5kdc/kdc.conf [kdcdefaults] kdc_ports = 88 kdc_tcp_ports = 88
[realms] HADOOP.COM = { #master_key_type = aes256-cts acl_file = /var/kerberos/krb5kdc/kadm5.acl dict_file = /usr/share/dict/words admin_keytab = /var/kerberos/krb5kdc/kadm5.keytab supported_enctypes = aes256-cts-hmac-sha1-96:normal aes128-cts-hmac-sha1-96:normal des3-hmac-sha1:normal arcfour-hmac-md5:normal max_renewable_life = 7d }
During setup it failed with zookeeper error.We checked the error logs for zookeeper.Please find error :
[root@hadoop-slave-1 ~]# tail -f /var/log/zookeeper/zookeeper-cmf-zookeeper-SERVER-hadoop-slave-1.log 2020-03-06 17:08:16,659 INFO org.apache.zookeeper.server.DatadirCleanupManager: Purge task started. 2020-03-06 17:08:16,672 INFO org.apache.zookeeper.server.quorum.QuorumPeerMain: Starting quorum peer 2020-03-06 17:08:16,676 INFO org.apache.zookeeper.server.DatadirCleanupManager: Purge task completed. 2020-03-06 17:08:16,768 ERROR org.apache.zookeeper.server.quorum.QuorumPeerMain: Unexpected exception, exiting abnormally java.io.IOException: Could not configure server because SASL configuration did not allow the ZooKeeper server to authenticate itself properly: javax.security.auth. login.LoginException: Client not found in Kerberos database (6) - CLIENT_NOT_FOUND at org.apache.zookeeper.server.ServerCnxnFactory.configureSaslLogin(ServerCnxnFactory.java:207) at org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFactory.java:87)
Do anybody have an idea on that.Please share if you have solution.
Thanks
pdev
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Apache Zookeeper
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Kerberos
12-18-2019
02:56 AM
thanks a lot Li Wang.It worked . pdev
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12-17-2019
02:21 AM
Hi Rajesh, We have disabled tls from cloudera admin and removed truststore path and password from cloudera management services. I hope this what you are asking.if not then please share steps to disable it. Thanks. Pdev
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12-17-2019
12:02 AM
Hi,
We were trying to enable TLS on our cluster.We have followed cloudera steps ,but i think missed something.After enabling TLS,we were able to login to port 7183,but all cloudera management services were disabled.
So we reverted back TLS changes from cloudera and removed all keys and certificates.After that given restart to the cloudera manager.
After this process,port 7180 started and login page came.But when i am trying to login then it is not redirecting to the GUI.
when i have check the logs. then these exceptions are showing.
2019-12-17 13:24:29,320 INFO WebServerImpl:com.cloudera.server.web.cmon.JobDetailGatekeeper: ActivityMonitor configured to allow job details for all jobs. 2019-12-17 13:24:30,850 WARN ActionablesProvider-0:com.cloudera.server.web.cmf.StatusProvider: Failed to submit task for getting status from SERVICE_MONITORING com.cloudera.cmon.MgmtServiceNotRunningException: SERVICE_MONITORING is not running
2019-12-17 13:24:50,238 WARN EventStorePublisherWithRetry-0:com.cloudera.cmf.event.publish.EventStorePublisherWithRetry: Failed to publish event: SimpleEvent{attributes={CATEGORY=[AUDIT_EVENT], SEVERITY=[INFORMATIONAL], SERVICE=[ClouderaManager], SERVICE_TYPE=[ManagerServer], USER=[admin], EVENTCODE=[EV_LOGIN_SUCCESS], MESSAGE_CODES=[LOGIN_SUCCESS]}, content=User admin logged in successfully., timestamp=1576569290230} 2019-12-17 13:24:52,250 INFO 1267052060@scm-web-0:com.cloudera.server.web.cmf.AuthenticationFailureEventListener: Authentication failure for user: '' from 172.26.194.114 2019-12-17 13:25:05,877 INFO 1267052060@scm-web-0:com.cloudera.server.web.cmf.AuthenticationSuccessEventListener: Authentication success for user: 'admin' from 172.26.194.114 2019-12-17 13:25:11,032 INFO CMMetricsForwarder-0:com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder: Failed to send metrics. java.lang.reflect.UndeclaredThrowableException at com.sun.proxy.$Proxy122.writeMetrics(Unknown Source) at com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder.sendWithAvro(ClouderaManagerMetricsForwarder.java:325) at com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder.sendMetrics(ClouderaManagerMetricsForwarder.java:312) at com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder.run(ClouderaManagerMetricsForwarder.java:146) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.avro.AvroRemoteException: java.net.ConnectException: Connection refused at org.apache.avro.ipc.specific.SpecificRequestor.invoke(SpecificRequestor.java:88) ... 11 more Caused by: java.net.ConnectException: Connection refused
Do anyone have any idea on that.Please suggest.
Thanks.
Devendra
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Cloudera Manager
12-05-2019
11:05 PM
Hi,
We are running CDH 5.14.0 version of cloudera.There are multiple warnings coming related to log data directory for only one Data node( hadoop-slave-1). please see warnings.
for the same node,root / dir space is showing critical.
can anyone suggest what files i should delete from "/ ,so that i can clear these alarms .
Thanks
Devendra
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Cloudera Manager