hbase
  • Introduction
  • Concepts
  • Hbase Architecture
    • Region servers
      • Regions
      • HFile
      • WAL(HLog)
      • How the Components Work Together
      • BlockCache
      • Region Split
      • Store(HStore OR Memstore))
      • HBase Region Flush
    • Special Tables ROOT , META
    • Fault Tolerance( Failover)
    • Data Locality
    • ZooKeeper: The Coordinator
    • HBase HMaster
    • Read Load Balancing
    • HBase Minor Compaction
    • HBase Major Compaction
    • HBase Read Merge
  • Queries
  • HBase Shell
    • Guide Lines
    • overview-example
  • HBase Read
  • HBase Write
  • Known Use Cases
  • HBase Data Model
  • References
  • Hands on
  • Case Studies
  • Notes
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Queries

  • whether the special tables - ROOT and META will be replicated ? If not , if ROOT is down , how it will be handled ?

  • add multiiple values using one put statement, is it possible in hbase?

  • How ROOT . META will be populated for the first time ? How they are involved in the WRITE path ? - check Hbase Premier 10th chapter

Book - Learning Hbase

chapter 2 Reading ,writing cycle

Each column family might have many HFiles, but the HFile will only belong to a specific column family. does this mean entire column family or the only few columns those got updates ?

Region assignment - check once , it is not clear - it was referring to a case if the region assignment is correct and valid - why and what are the cases region assignment is incorrect and not valid - take a look at regionserver failover section and this section seems to have answers

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Last updated 5 years ago

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