Re: HBCK2 and CDH 6.3.2

tuk · ‎05-18-2020

@buddelflinktier - How did you get the hbck2 tool? Did you build it from source code?

tuk · ‎05-14-2020

Anyone any thoughts on this one?

tuk · ‎05-13-2020

Hi Can someone let me know from where I can obtain the hbck2 tool for CDH 6.3.2? Thanks,

tuk · ‎03-26-2020

Is there any plan of supporting CDH 5.6.x on Ubuntu 18 ?

tuk · ‎03-25-2020

HI Can someone let me know if CDH 5.15 and CDH 5.16 is supported on Ubuntu 18? The below doc does not mention anything about Ubuntu 18 so just confirming https://docs.cloudera.com/documentation/enterprise/release-notes/topics/rn_consolidated_pcm.html#c516_supported_os Thanks,

tuk · ‎01-08-2020

Anyone any thoughts on my below query @tuk wrote: Is there any way by which an Unmanaged 5.x cluster can move to CDH 6.x (may be adding it in Cloudera Manager and then moving to 6.x)?

tuk · ‎11-10-2019

Anyone any update on my last query ?

tuk · ‎10-19-2019

Thanks for replying. Do you know if it is going to be supported in future or not?

tuk · ‎10-08-2019

Will CDH 5 also going to support Ubuntu 18.04?

tuk · ‎10-08-2019

Now CDH 6.2 supports Ubuntu 18.40. Will CDH 5 also going to support Ubuntu 18.04?

tuk · ‎08-31-2019

Anyone any thoughts on this?

tuk · ‎08-20-2019

The link https://community.mapr.com/docs/DOC-1215 is not working now.

tuk · ‎08-19-2019

I am using CDH 5.16.1 and I hit the issue HDFS-8298 as discussed in the below link https://issues.apache.org/jira/browse/HDFS-8298 Can someone let me know if this is yet fixed in any of the CDH versions?

tuk · ‎06-12-2019

Thanks @SidAhuja . Is there any way by which an Unmanaged 5.x cluster can move to CDH 6.x (may be adding it in Cloudera Manager and then moving to 6.x)?

tuk · ‎02-27-2019

Any thoughts on my previous query can someone let me know how to upgrade an unmanaged cluster to 6.1 from 5.16?

tuk · ‎02-17-2019

Anyone has any thoughts on this?

tuk · ‎01-31-2019

How to upgrade an unmanaged cluster to 6.1 from 5.16 ? I am not able to locate any docs to upgrade unmanaged cluster (running 5.16) via command line like the one below for 5.15 https://www.cloudera.com/documentation/enterprise/5-15-x/topics/cdh_ig_upgrade_command_line.html

tuk · ‎01-31-2019

Cross-posting from stackoverflow :- Can someone let me know how can we upgrade an unmanaged CDH Cluster from 5.16 to 6.1? I am not able to locate any docs to upgrade unmanaged cluster (running 5.16) via command line like the one below for 5.15 https://www.cloudera.com/documentation/enterprise/5-15-x/topics/cdh_ig_upgrade_command_line.html Can someone point me to the corresponding doc for 6.1?

tuk · ‎01-29-2019

I am not able to locate any docs to upgrade unmanaged cluster via command line like the one below for 5.15 https://www.cloudera.com/documentation/enterprise/5-15-x/topics/cdh_ig_upgrade_command_line.html Can someone point me to the corresponding doc for 6.1 ?

tuk · ‎01-23-2019

The below link is still not providing me the instruction to upgrade to 6.1 even if I select Current CDH Version as 5.16. https://www.cloudera.com/documentation/enterprise/upgrade/topics/ug_cdh_upgrade_before.html#ug_cdh_upgrade_before

tuk · ‎01-19-2019

Is upgrade to 6.1 supported from 5.15 ? The below link is not showing any option to upgrade to 6.1 from 5.15 https://www.cloudera.com/documentation/enterprise/upgrade/topics/ug_cdh_upgrade_before.html#ug_cdh_upgrade_before

tuk · ‎12-07-2018

The documentation states it is not possible to upgrade to CDH 6.0.0 from 5.15. CDH 6.0.1 is released is it possible to upgrade to 6.0.1 from 5.15? If not then what is the upgrade path for moving to CDH 6.0.1 from 5.15 ? CDH 5.15 to CDH 5.16.1 and then CDH 6.0.1? Will the future CDH 6 version support upgrading directly from 5.15 ?

tuk · ‎06-30-2018

I am interested in pursuing the cloudera on demand training for Apache Hbase. So I was going through the course outline. https://university.cloudera.com/static/pdfs/Cloudera-Training-for-Apache-HBase.pdf The above pdf link talks about Hbase Certification. HBase Certification Upon completion of the course, attendees are encouraged to continue their study and register for the Cloudera Certified Specialist in Apache HBase (CCSHB) exam. Certification is a great differentiator; it helps establish you as a leader in the field, providing employers and customers with tangible evidence of your expertise. But I am not able to find any more details about the CCSHB exam in cloudera website. Can someone point me to the link which provides more details about the CCSHB exam?

tuk · ‎06-20-2018

CDH 15 is released as mentioned in the below link http://community.cloudera.com/t5/Community-News-Release/ANNOUNCE-Cloudera-Enterprise-5-15-is-Now-Available/m-p/69154#M233 But in the maven central repo I am not able to see any hbase-client specific to CDH 15. The latest available is 5.14.2. https://mvnrepository.com/artifact/org.apache.hbase/hbase-client?repo=cloudera Are we supposed to use 5.14.2 clients with CDH 15 ? I could not find anything related to this in documentation.

tuk · ‎12-21-2017

@csguna - As suggested here I am trying to do a rolling upgrade from command line. But on trying to upgrade `hadoop-yarn-resourcemanager` it is upgrading other CDH components as well support@platform1:~$ sudo apt-get install hadoop-yarn-resourcemanager Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: hadoop hadoop-0.20-mapreduce hadoop-client hadoop-conf-pseudo hadoop-hdfs hadoop-hdfs-datanode hadoop-hdfs-journalnode hadoop-hdfs-namenode hadoop-hdfs-secondarynamenode hadoop-hdfs-zkfc hadoop-mapreduce hadoop-mapreduce-historyserver hadoop-yarn hadoop-yarn-nodemanager The following packages will be upgraded: hadoop hadoop-0.20-mapreduce hadoop-client hadoop-conf-pseudo hadoop-hdfs hadoop-hdfs-datanode hadoop-hdfs-journalnode hadoop-hdfs-namenode hadoop-hdfs-secondarynamenode hadoop-hdfs-zkfc hadoop-mapreduce hadoop-mapreduce-historyserver hadoop-yarn hadoop-yarn-nodemanager hadoop-yarn-resourcemanager 15 upgraded, 0 newly installed, 0 to remove and 16 not upgraded.

tuk · ‎12-20-2017

@csguna - Can you let me know if it is possible to upgrade individual CDH components via "1-Click Install"? For example let's say I want to upgrade only ` hadoop-hdfs-datanode` in a server. If I am doing `sudo apt-get install hadoop-hdfs-datanode` it is updating other CDH components also in that node (like resource-manager, node-manager, etc)

tuk · ‎12-13-2017

Is `hadoop-yarn-api` backward compatible? I can find this blog post which talks about `hbase-client` api. Does the same thiing old for `hadoop-yarn-api` as well for `2.6.0-cdh5.13.0` and `2.6.0-cdh5.7.0` ? < dependency > < groupId > org.apache.hadoop </ groupId > < artifactId > hadoop-yarn-api </ artifactId > < version >2.6.0-cdh5.13.0 </ version > </ dependency >

tuk · ‎12-08-2017

Thanks @csguna for replying. I am trying this on a test set-up. I am not having Cloudera Enterprise license. Can you also let me know since this is a minor version upgrade from 5.7 to 5.13. Can I just upgrade the services in any random order? For example let's say I have upgraded the Secondary Name Node and some data node to the latest 5.13. Will the updated node will be able to talk with the old 5.7 ? Is the latest 5.13 fully backward compatible with 5.7? Cluster downtime is not an issue but eventually when all the node is upgrade will the cluster be restored to normal. The above question may sound little weird but in summary I am asking this because the legacy set-up in which I am working right now does not have any centralized mechanism to control upgrade secondary NN first then primary & so on.

tuk · ‎12-06-2017

In HDFS rolling upgrade page at a high level I am seeing the steps mentioned like below hdfs dfsadmin -rollingUpgrade prepare Upgrade standby NN2 and start NN2 with hdfs dfsadmin -rollingUpgrade started Shutdown, upgrade NN1 and start NN1 with hdfs dfsadmin -rollingUpgrade started But in cloudera documentation of Hadoop to prepare the cluster for upgrade it is just saying to enter NN in safemode & save namespace sudo -u hdfs hdfs dfsadmin -safemode enter sudo -u hdfs hdfs dfsadmin -saveNamespace Can some one let me know why there is a difference in the above steps? Is it just sufficient to enter in -safemode before doing the upgrade? If yes what does -rollingUpgrade started do then? In the cloudera documentation I am not seeing anything about -safemode leave. When it will leave the safemode? Will it auto leave the safemode ?

tuk · ‎12-06-2017

Anyone any thoughts?

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Re: HBCK2 and CDH 6.3.2

Re: How to get hbck2 tool for CDH 6.3.2?

How to get hbck2 tool for CDH 6.3.2?

Re: CDH 5.16 on Ubuntu 18

CDH 5.16 on Ubuntu 18

Re: Upgrade unmanaged CDH Cluster to 6.1 from 5.16

Re: Upgrade unmanaged CDH Cluster to 6.1 from 5.16

Re: Will CDH 5 support Ubuntu 18.04 ?

Re: Will CDH support Ubuntu 18.04 ?

Will CDH 5 support Ubuntu 18.04 ?

Re: Is upstream issue HDFS-8298 fixed ?

Re: Zookeeper not starting on one node inconsisten...

Is upstream issue HDFS-8298 fixed ?

Re: Upgrade unmanaged CDH Cluster to 6.1 from 5.16

Re: Cloduera 5.15 to Version 6

Re: Upgrade unmanaged CDH Cluster to 6.1 from 5.16

Re: Upgrade to CDH 6.0.x from 5.15

Upgrade unmanaged CDH Cluster to 6.1 from 5.16

Re: Cloduera 5.15 to Version 6

Re: Cloduera 5.15 to Version 6

Re: Cloduera 5.15 to Version 6

Upgrade to CDH 6.0.x from 5.15

Cloudera Training for Apache HBase

HBase Client for CDH 15

Re: CDH Rolling Upgrade to 5.13 from 5.7 without C...

Re: CDH Rolling Upgrade to 5.13 from 5.7 without C...

Is hadoop-yarn-api backward compatiable?

Re: CDH Rolling Upgrade to 5.13 from 5.7 without C...

Role of 'prepare' command & 'safemode' in HDFS Rol...

Re: CDH Rolling Upgrade to 5.13 from 5.7 without C...