Help Center/ MapReduce Service/ Component Operation Guide (LTS)/ Using Impala/ Impala FAQ/ Does Impala Support Disk Hot Swapping?

Updated on 2024-12-13 GMT+08:00

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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.

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