DataStax Academy FAQ
DataStax Academy migrated to a new learning management system (LMS) in July 2020. We are also moving to a new Cassandra Certification process so there are changes to exam bookings, voucher system and issuing of certificates.
Check out the Academy FAQ pages for answers to your questions:
- Haven't heard back about exams or vouchers? [NEW August 7]
- When can I book an exam? [NEW August 10]
- How do I qualify for an exam voucher? [NEW August 10]
- How long are the coupons valid for? [NEW August 10]
- Why can't I see my old exam result or certificate? [UPDATED August 10]
- What happened to my previous exam voucher? [UPDATED August 10]
- Why is my previous course progress not shown on the new Academy?
IllegalArgumentException: Found 2 incompatible versions of column Closed
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Why can't I restore snapshots manually copied from another cluster with OpsCenter? Closed
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How do I migrate tables to a new cluster with a different configuration to the source cluster? Closed
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How do I migrate data from one cluster to another which are the same size? Closed
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How do I migrate data from a 5-node cluster to a 3-node cluster? Closed
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Why does nodetool import return "Directory ... does not exist"? Closed
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Why is the data missing when I restore a full backup on a node? Closed
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Is it possible to clone a table which has Solr indexes to another cluster without indexing again? Closed
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Why are rows still missing from reads after I've restored from snapshots?
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How do I migrate tables to a new cluster with identical configuration as the source cluster? Closed
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Restoring archived commitlogs does not recover deleted rows
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How to restore Cassandra snapshot to a different keyspace name
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