还是不行，没改的时候报错事105M，改成96M报错是110M，改成80M的时候报错是130M了
[2025/11/05 06:28:57.210 +08:00] [INFO] [client.go:943] ["backup range completed"] [range-sn=532] [startKey=7480000000000003335F69800000000000000300] [endKey=7480000000000003335F698000000000000003FB] [take=51.901227ms]
[2025/11/05 06:28:57.212 +08:00] [INFO] [client.go:893] ["Backup Ranges Completed"] [take=7h28m50.042201967s]
[2025/11/05 06:28:57.212 +08:00] [INFO] [metafile.go:634] ["write metas finished"] [type=datafile]
[2025/11/05 06:28:58.900 +08:00] [INFO] [backup.go:675] ["wait for flush checkpoint..."]
[2025/11/05 06:28:58.900 +08:00] [INFO] [checkpoint.go:454] ["stop checkpoint runner"]
[2025/11/05 06:28:58.965 +08:00] [INFO] [checkpoint.go:341] ["stop checkpoint flush worker"]
[2025/11/05 06:28:58.973 +08:00] [INFO] [backup.go:498] ["skip removing gc-safepoint keeper for next retry"] [gc-id=br-29f90b72-1f7b-494b-9824-87ec4fc99af7]
[2025/11/05 06:28:58.974 +08:00] [INFO] [pd_service_discovery.go:248] ["[pd] exit member loop due to context canceled"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [resource_manager_client.go:271] ["[resource manager] exit resource token dispatcher"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_dispatcher.go:240] ["exit tso dispatcher loop"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_dispatcher.go:410] ["[tso] stop fetching the pending tso requests due to context canceled"] [dc-location=global]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_dispatcher.go:344] ["[tso] exit tso dispatcher"] [dc-location=global]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_dispatcher.go:186] ["exit tso requests cancel loop"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_client.go:134] ["closing tso client"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_client.go:139] ["close tso client"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [tso_client.go:150] ["tso client is closed"]
[2025/11/05 06:28:58.974 +08:00] [INFO] [pd_service_discovery.go:294] ["[pd] close pd service discovery client"]
[2025/11/05 06:28:58.975 +08:00] [INFO] [pd.go:231] ["closed pd http client"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_dispatcher.go:186] ["exit tso requests cancel loop"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_dispatcher.go:240] ["exit tso dispatcher loop"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [resource_manager_client.go:271] ["[resource manager] exit resource token dispatcher"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [pd_service_discovery.go:248] ["[pd] exit member loop due to context canceled"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_dispatcher.go:410] ["[tso] stop fetching the pending tso requests due to context canceled"] [dc-location=global]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_dispatcher.go:344] ["[tso] exit tso dispatcher"] [dc-location=global]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_client.go:134] ["closing tso client"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_client.go:139] ["close tso client"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [tso_client.go:150] ["tso client is closed"]
[2025/11/05 06:28:58.976 +08:00] [INFO] [pd_service_discovery.go:294] ["[pd] close pd service discovery client"]
[2025/11/05 06:28:58.977 +08:00] [INFO] [collector.go:224] ["units canceled"] [cancel-unit=0]
[2025/11/05 06:28:58.977 +08:00] [INFO] [collector.go:78] ["Full Backup failed summary"] [total-ranges=0] [ranges-succeed=0] [ranges-failed=0] [backup-total-ranges=533]
[2025/11/05 06:28:58.977 +08:00] [ERROR] [backup.go:54] ["failed to backup"] [error="EntityTooLarge: 参数“Content-Length=133570547”无效，有效值为:[0,100MB]\n\tstatus code: 400, request id: , host id: "] [errorVerbose="EntityTooLarge: 参数“Content-Length=133570547”无效，有效值为:[0,100MB]\n\tstatus code: 400, request id: , host id: \ngithub.com/pingcap/errors.AddStack\n\t/root/go/pkg/mod/github.com/pingcap/errors@v0.11.5-0.20240318064555-6bd07397691f/errors.go:178\ngithub.com/pingcap/errors.Trace\n\t/root/go/pkg/mod/github.com/pingcap/errors@v0.11.5-0.20240318064555-6bd07397691f/juju_adaptor.go:15\ngithub.com/pingcap/tidb/br/pkg/storage.(*S3Storage).WriteFile\n\t/workspace/source/tidb/br/pkg/storage/s3.go:561\ngithub.com/pingcap/tidb/br/pkg/metautil.(*MetaWriter).flushMetasV2\n\t/workspace/source/tidb/br/pkg/metautil/metafile.go:772\ngithub.com/pingcap/tidb/br/pkg/metautil.(*MetaWriter).FinishWriteMetas\n\t/workspace/source/tidb/br/pkg/metautil/metafile.go:664\ngithub.com/pingcap/tidb/br/pkg/task.RunBackup\n\t/workspace/source/tidb/br/pkg/task/backup.go:712\nmain.runBackupCommand\n\t/workspace/source/tidb/br/cmd/br/backup.go:53\nmain.newFullBackupCommand.func1\n\t/workspace/source/tidb/br/cmd/br/backup.go:143\ngithub.com/spf13/cobra.(*Command).execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.7.0/command.go:940\ngithub.com/spf13/cobra.(*Command).ExecuteC\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.7.0/command.go:1068\ngithub.com/spf13/cobra.(*Command).Execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.7.0/command.go:992\nmain.main\n\t/workspace/source/tidb/br/cmd/br/main.go:58\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:267\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1650"] [stack="main.runBackupCommand\n\t/workspace/source/tidb/br/cmd/br/backup.go:54\nmain.newFullBackupCommand.func1\n\t/workspace/source/tidb/br/cmd/br/backup.go:143\ngithub.com/spf13/cobra.(*Command).execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.7.0/command.go:940\ngithub.com/spf13/cobra.(*Command).ExecuteC\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.7.0/command.go:1068\ngithub.com/spf13/cobra.(*Command).Execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.7.0/command.go:992\nmain.main\n\t/workspace/source/tidb/br/cmd/br/main.go:58\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:267"]