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Re: Forcefully Exit NameNode Safe Mode

by Explorer in Support Questions
‎03-09-2018 03:34 AM
1 Kudo
‎03-09-2018 03:34 AM
1 Kudo
@Constantin Stanca Command worked. I have some bad blocks, but it is not a big deal. This is my sandbox environment. Lesson learned to take a cold backup. Thank you so much! ... View more

Forcefully Exit NameNode Safe Mode

by Explorer in Support Questions
‎03-09-2018 03:22 AM
4 Kudos
‎03-09-2018 03:22 AM
4 Kudos
I restored my HDP 2.6.4 cluster from instance snapshots, restarted and most of services started successfully. After a quick investigation found out that NN is in safe mode. Ok. Let's take it out of that mode with: hdfs dfsadmin -safemode leave Not so quick, it the command execution would report: Safe mode is OFF. Let me search for a forceful exit. I could not find the command. Please help. ... View more

Re: Migrating from HBase to BigTable

by Explorer in Support Questions
‎03-02-2018 06:51 PM
4 Kudos
‎03-02-2018 06:51 PM
4 Kudos
@Constantin Stanca This is very helpful. My prototype will account for these differences. I agree with support aspects, but it is a balance between operational complexity and functionality. ... View more

Migrating from HBase to BigTable

by Explorer in Support Questions
‎03-02-2018 06:15 PM
4 Kudos
‎03-02-2018 06:15 PM
4 Kudos
We recently moved our HDP cluster to Google Cloud. We are not using any of the GC services, but we consider our options. We could continue to use HBase or migrate to BigTable. Our challenge is that we may have to change our applications using HBase as a data store. Could you advise on a safe path approach, if any? ... View more
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Re: How do I set maximum batch size when using Tri...

by Explorer in Support Questions
‎03-16-2017 05:11 PM
‎03-16-2017 05:11 PM
@Constantin Stanca Grrrr... Not good. Thanks. ... View more

Re: Does HDP or HDF support Kafka rest api?

by Explorer in Support Questions
‎03-07-2017 01:23 AM
‎03-07-2017 01:23 AM
@Zachary Brown Kafka REST api did not make it yet. See JIRA mentioned by Artem. Kafka REST proxy is included with Confluent Kafka. ... View more

Re: Can anyone explain Kafka rack awareness featur...

by Explorer in Support Questions
‎12-14-2016 12:04 AM
‎12-14-2016 12:04 AM
@Michael Young,@lgeorge,@Constantin Stanca Wow! That was quick! Thanks so much all of you. I voted-up all your responses and choose Constantin's for the example which was very explicit and easy to follow. ... View more

Can anyone explain Kafka rack awareness feature?

by Explorer in Support Questions
‎12-13-2016 11:44 PM
5 Kudos
‎12-13-2016 11:44 PM
5 Kudos
I learned recently that Kafka 0.10 supports rack awareness. I researched Kafka wiki and JIRA and got some understanding, but it would be great if any of the HCC experts could provide an example of how replication works with rack awareness. ... View more
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‎04-16-2018 03:40 AM
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Date Registered ‎11-22-2016 02:07 AM
Last Visited ‎04-16-2018 03:40 AM
Total Messages Posted 10
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