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Does Impala Support Disk Hot Swapping?
Updated on 2024-12-11 GMT+08:00
Does Impala Support Disk Hot Swapping?
Question
Does Impala Support Disk Hot Swapping?
Answer
Impala data is stored in HDFS or OBS and does not need to be stored on local disks. Data only needs to be overflowed to disks (specified by --scratch_dirs) if memory space is not enough for service queries running on Impalad instances. Disk hot swapping is not supported. Impalad does not store temporary data in multiple copies.
Parent topic: Impala FAQ
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