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Chetankumar
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Migrate from RC4 to AEC

by Explorer in Support Questions
‎12-04-2023 02:15 AM
‎12-04-2023 02:15 AM
Hi, We are in process of migrating from RC4 to AEC in Cloudera manager for Kerberos. Could you please help me to understand if there  is any issue while changing  from RC4 to AEC. Do I need to recreate the keytabs ? If yes canI force the accounts in Active directory to use AEC from RC4 ? ... View more
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ldap user change in Cloudera 5.10

by Explorer in Support Questions
‎10-22-2023 11:54 AM
‎10-22-2023 11:54 AM
Hi. I want to change the LDAP user  as currently we are using a Domain Admin account. We want to use the service account for LDAP configuration. I  have found below properties in hdfs configuration to change. hadoop.security.group.mapping.ldap.bind.user hadoop.security.group.mapping.ldap.bind.password hadoop.security.group.mapping.ldap.base hadoop.security.group.mapping.ldap.search.attr.group.name Could you please guide me how can I change these and is there any document for this? I am using cloudera 5.10 version. ... View more
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Re: reduce replica factor

by Explorer in Support Questions
‎09-07-2022 01:15 AM
‎09-07-2022 01:15 AM
I am using CDH 5.10 ... View more

reduce replica factor

by Explorer in Support Questions
‎09-07-2022 01:15 AM
‎09-07-2022 01:15 AM
Hi, I want to reduce the replication factor from 3 to 2 on cold storage. can I apply it on a storage policy. if yes, how can I do this? Any complications while performing this? ... View more
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Re: Error starting NodeManager

by Explorer in Support Questions
‎03-07-2022 01:06 AM
‎03-07-2022 01:06 AM
We have made changes to Static Service Pools in CM and now it failed to start the node manager. Could you please let me know how can we revert it back to original? This is cloudera express version. @Scharan  ... View more

Re: Error starting NodeManager

by Explorer in Support Questions
‎03-06-2022 11:52 PM
‎03-06-2022 11:52 PM
Getting fatal Error on. "org.apache.hadoop.yarn.server.nodemanager.NodeManager" Error starting NodeManager org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Failed to initialize container executor at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:251) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:544) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:591) Caused by: java.io.IOException: Not able to enforce cpu weights; cannot write to cgroup at: /sys/fs/cgroup/cpu,cpuacct at org.apache.hadoop.yarn.server.nodemanager.util.CgroupsLCEResourcesHandler.initializeControllerPaths(CgroupsLCEResourcesHandler.java:502) at org.apache.hadoop.yarn.server.nodemanager.util.CgroupsLCEResourcesHandler.init(CgroupsLCEResourcesHandler.java:154) at org.apache.hadoop.yarn.server.nodemanager.util.CgroupsLCEResourcesHandler.init(CgroupsLCEResourcesHandler.java:137) at org.apache.hadoop.yarn.server.nodemanager.LinuxContainerExecutor.init(LinuxContainerExecutor.java:215) at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:249) ... 3 more   Version: Hadoop 2.6.0-cdh5.10.2    Cloudera express ... View more

Re: Error starting NodeManager

by Explorer in Support Questions
‎03-04-2022 06:18 AM
‎03-04-2022 06:18 AM
Permission on the directory : ls -ld cpu,cpuacct drwxr-xr-x 5 root root 0 Feb 19 20:52 cpu,cpuacct ... View more

Error starting NodeManager

by Explorer in Support Questions
‎03-04-2022 06:10 AM
‎03-04-2022 06:10 AM
when I am trying to start the nodemanager I am getting  Caused by: java.io.IOException: Not able to enforce cpu weights; cannot write to cgroup at: /sys/fs/cgroup/cpu,cpuacct   ... View more
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How HDFS balancer works ?

by Explorer in Support Questions
‎09-17-2021 02:29 AM
‎09-17-2021 02:29 AM
Hi, I have 6 disks installed on each server with 3 data nodes. I am having 3 disks of 1TB and 3 disk of 4TB. Now what is happening that the smaller disk 1 TB are getting full frequently and Impala stops working. Is there a way that I can replicate those disks with some percent of free space? Like none of the 6 disk  should exceed 80% of usage until the balancer completes. ... View more
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Re: Spark2 service not found in cloudera manager

by Explorer in Support Questions
‎09-16-2021 08:59 AM
‎09-16-2021 08:59 AM
@Jaydeep_Ta The permissions are in place and owner is cloudera-scm user. It have 644 permission. I tried to install the same  on 5.16 and it is working without any  issues. Only 5.10 is having issue. ... View more
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