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Linux Foundation Exam HFCP Topic 4 Question 20 Discussion

Actual exam question for Linux Foundation's HFCP exam

Question #: 20
Topic #: 4

[All HFCP Questions]

What is the only way to recover from a failed migration from Kafka to Raft?

ARetry the migration from Kafka to Raft.

BRestore the state from a backup.

CRevert to the previous version of Kafka.

DRebuild the network from scratch.

Show Suggested Answer

Suggested Answer: B

Recovering from a failed migration from Kafka to Raft in Hyperledger Fabric involves restoring the state from a backup. This is necessary because once the ordering service is migrated to Raft and begins committing transactions, reverting to Kafka is not supported without a previous backup. If a migration is botched, and a backup was made at the appropriate point, administrators can roll back to this backup to restore the system to its pre-migration state .

by Azalee at Sep 13, 2024, 01:54 PM

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Dominga

7 months ago

B) Restore the state from a backup. Duh, that's the textbook answer. Unless you want to start from scratch and build a whole new Kafka cluster.

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Maurine

5 months ago

C) Revert to the previous version of Kafka.

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Haydee

6 months ago

B) Restore the state from a backup. Duh, that's the textbook answer.

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Merlyn

6 months ago

A) Retry the migration from Kafka to Raft.

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Catherin

7 months ago

Hold on, are we sure there's no cheat code or secret handshake to recover from this? Just asking for a friend.

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Latonia

7 months ago

D) Rebuild the network from scratch? Are you kidding me? That's overkill for a failed migration!

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Maryrose

6 months ago

C) Revert to the previous version of Kafka.

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Tanesha

6 months ago

B) Restore the state from a backup.

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Cristy

6 months ago

A) Retry the migration from Kafka to Raft.

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Phil

7 months ago

I would go with option B as well, it's better to have a backup plan in case of failure.

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Arlene

7 months ago

C) Revert to the previous version of Kafka. It's the quickest way to get back up and running.

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Margret

6 months ago

Let's go ahead and revert to the previous version then.

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Hailey

6 months ago

Agreed, it's the quickest way to recover from the failed migration.

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Bette

7 months ago

I think we should revert to the previous version of Kafka.

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Tiera

7 months ago

B) Restore the state from a backup. That's the only way to ensure a clean recovery after a failed migration.

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Madalyn

7 months ago

C) Revert to the previous version of Kafka.

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Josphine

7 months ago

B) Restore the state from a backup.

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Cordie

7 months ago

A) Retry the migration from Kafka to Raft.

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Tamesha

8 months ago

I agree with Janella, restoring from a backup seems like the safest option.

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Janella

8 months ago

I think the only way to recover is to restore the state from a backup.

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