Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.
Original topic: TiKV出现问题IO Error: fallocate
[Test Environment for TiDB]
[TiDB Version] uhub.service.ucloud.cn/pingcap/tikv:v6.1.0 CrashLoopBackOff
[Reproduction Path] Using Alibaba Cloud ACK, then set up NFS by myself, NFS is built on ext4 file system
[Encountered Problem: Phenomenon and Impact] Encountered “failed to open raft engine: Other("[components/raft_log_engine/src/engine.rs:464]: IO Error: fallocate")”
[Resource Configuration]
[TiDB Operator Version]: tidb-operator:v1.3.9
[K8s Version]: 1.20.11-aliyun.1
[Attachments: Screenshots/Logs/Monitoring]
It’s probably the cloud storage that’s not working well. Someone has tried this before, you can search for it.
I tried Alibaba Cloud’s NAS again, and it seems to have issues as well.
Your result is exactly the opposite of this classmate’s test results 
Yes, classmate, can you help me? I really don’t know how to do it.
It is estimated that, as mentioned in the post, it is a cloud server kernel issue.
Switch to a local virtual machine or physical server, and it will be fine.
Or switch to a better storage service from Alibaba Cloud, and stop using NFS.
I switched to Alibaba Cloud’s NAS. I’ve tried everything except buying a cloud disk.
Could the developers please take a look and help resolve this issue? It would be very awkward if it can’t be deployed on Alibaba Cloud.
Hello, are you using NFS as the disk for TiKV?
Hello,
It is not recommended to use NFS for TiKV volumes; local PV is recommended.
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