br备份报错, 求救

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为提高效率,请提供以下信息,问题描述清晰能够更快得到解决:

【TiDB 版本】
4.0.10
【问题描述】
tidb-toolkit-v4.0.10-linux-amd64/bin/br backup full --pd “xxx:yyy” --storage “local:///data/backup/3”
输出:
Detail BR log in /tmp/br.log.2021-04-09T11.18.40+0800
Full backup <…> 0.00%
Error: msg:“Io(Os { code: 2, kind: NotFound, message: “No such file or directory” })” : [BR:KV:ErrKVUnknown]unknown tikv error

#more /tmp/br.log.2021-04-09T11.18.40+0800

[2021/04/09 11:18:41.706 +08:00] [INFO] [ddl.go:394] ["[ddl] DDL closed"] [ID=44e9d090-0bc9-4473-96e0-5dcc2517debe] [“take time”=1.914707ms]
[2021/04/09 11:18:41.707 +08:00] [INFO] [ddl.go:303] ["[ddl] stop DDL"] [ID=44e9d090-0bc9-4473-96e0-5dcc2517debe]
[2021/04/09 11:18:41.709 +08:00] [INFO] [domain.go:452] [“infoSyncerKeeper exited.”]
[2021/04/09 11:18:41.709 +08:00] [INFO] [domain.go:622] [“domain closed”] [“take time”=4.769359ms]
[2021/04/09 11:18:41.710 +08:00] [INFO] [collector.go:188] [“Full backup Failed summary : total backup ranges: 453, total success: 0, total failed: 453”] [“backup total regions”=2266] [BackupTS=424132
823149969412] [unitName=“range start:74800000000000030c5f69800000000000000100 end:74800000000000030c5f698000000000000001fb”] [error=“rpc error: code = Canceled desc = context canceled”] [errorVerbose=
“rpc error: code = Canceled desc = context canceled\ngithub.com/tikv/pd/client.(*client).GetAllStores\ \tgithub.com/tikv/pd@v1.1.0-beta.0.20201209075645-beb7635d13d2/client/client.go:653\ github.com/p
ingcap/br/pkg/conn.GetAllTiKVStores\ \tgithub.com/pingcap/br@/pkg/conn/conn.go:76\ github.com/pingcap/br/pkg/backup.(*Client).BackupRange\ \tgithub.com/pingcap/br@/pkg/backup/client.go:511\ github.com
/pingcap/br/pkg/backup.(*Client).BackupRanges.func2.1\ \tgithub.com/pingcap/br@/pkg/backup/client.go:459\ github.com/pingcap/br/pkg/utils.(*WorkerPool).ApplyOnErrorGroup.func1\ \tgithub.com/pingcap/br
@/pkg/utils/worker.go:63\ngolang.org/x/sync/errgroup.(*Group).Go.func1\ \tgolang.org/x/sync@v0.0.0-20201020160332-67f06af15bc9/errgroup/errgroup.go:57\ runtime.goexit\ \truntime/asm_amd64.s:1357”] [un
itName=“range start:7480000000000001fe5f720000000000000000 end:7480000000000001fe5f72ffffffffffffffff00”] [error=“rpc error: code = Canceled desc = context canceled”] [errorVerbose=“rpc error: code =
Canceled desc = context canceled\ngithub.com/tikv/pd/client.(*client).GetAllStores\ \tgithub.com/tikv/pd@v1.1.0-beta.0.20201209075645-beb7635d13d2/client/client.go:653\ github.com/pingcap/br/pkg/conn.
GetAllTiKVStores\ \tgithub.com/pingcap/br@/pkg/conn/conn.go:76\ github.com/pingcap/br/pkg/backup.(*Client).BackupRange\ \tgithub.com/pingcap/br@/pkg/backup/client.go:511\ github.com/pingcap/br/pkg/bac
kup.(*Client).BackupRanges.func2.1\ \tgithub.com/pingcap/br@/pkg/backup/client.go:459\ github.com/pingcap/br/p

[2021/04/09 11:18:41.722 +08:00] [ERROR] [main.go:59] [“br failed”] [error=“msg:“Io(Os { code: 2, kind: NotFound, message: \“No such file or directory\” })” : [BR:KV:ErrKVUnknown]unknown tikv er
ror”] [errorVerbose=”[BR:KV:ErrKVUnknown]unknown tikv error\ msg:“Io(Os { code: 2, kind: NotFound, message: \“No such file or directory\” })” \ngithub.com/pingcap/br/pkg/backup.(*pushDown).pushB
ackup\ \tgithub.com/pingcap/br@/pkg/backup/push.go:113\ github.com/pingcap/br/pkg/backup.(*Client).BackupRange\ \tgithub.com/pingcap/br@/pkg/backup/client.go:524\ github.com/pingcap/br/pkg/backup.(*Cl
ient).BackupRanges.func2.1\ \tgithub.com/pingcap/br@/pkg/backup/client.go:459\ github.com/pingcap/br/pkg/utils.(*WorkerPool).ApplyOnErrorGroup.func1\ \tgithub.com/pingcap/br@/pkg/utils/worker.go:63\ g
olang.org/x/sync/errgroup.(*Group).Go.func1\ \tgolang.org/x/sync@v0.0.0-20201020160332-67f06af15bc9/errgroup/errgroup.go:57\ runtime.goexit\ \truntime/asm_amd64.s:1357"] [stack=“main.main\ \tgithub.co
m/pingcap/br@/main.go:59\ runtime.main\ \truntime/proc.go:203”]


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确认一下每个 TiKV 实例上是不是都是有 //data/backup/3 这个路径的