版本：Flink 1.12.0
环境：Native Kubernetes
模式：Application Mode
描述：
Flink以Native Kubernetes Application模式运行在k8s时，使用filesystem
OSS作为backend发现日志请求OSS报错。
当代码使用`source.setStartFromEarliest();`，启动job之后从头开始消费，运行过程正常，运行到最新点位后会出现以下报错，过一段时间或者重启job之后报错消失。
当代码使用`source.setStartFromLatest();`，启动job之后直接从最新点位开始消费，则不会出现此报错。
据观察请问是我哪里配置或者使用有问题么？
命令：
./bin/flink run-application \
--target kubernetes-application \
-Dkubernetes.cluster-id=demo \
-Dkubernetes.container.image=xx/xx/xx:2.0.16 \
-Dstate.backend=filesystem \
-Dstate.checkpoints.dir=oss://bucket/文件夹 \
-Dfs.oss.endpoint=oss-cn-beijing-internal.aliyuncs.com<http://oss-cn-beijing-internal.aliyuncs.com>
\
-Dfs.oss.accessKeyId=xx \
-Dfs.oss.accessKeySecret=xx \
local:///opt/flink/usrlib/my-flink-job.jar
报错日志：
2021-03-03 02:53:46,133 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Committing offset 12701:1:-1:4 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午10:53:46 2021-03-03 02:53:46,140 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Successfully committed offset 12701:1:-1:4 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午10:53:50 2021-03-03 02:53:50,899 INFO
org.apache.flink.fs.osshadoop.shaded.com.aliyun.oss [] -
[Server]Unable to execute HTTP request: Not Found
2021/3/3 上午10:53:50 [ErrorCode]: NoSuchKey
2021/3/3 上午10:53:50 [RequestId]: xx
2021/3/3 上午10:53:50 [HostId]: null
2021/3/3 上午10:53:50 2021-03-03 02:53:50,904 INFO
org.apache.flink.fs.osshadoop.shaded.com.aliyun.oss [] -
[Server]Unable to execute HTTP request: Not Found
2021/3/3 上午10:53:50 [ErrorCode]: NoSuchKey
2021/3/3 上午10:53:50 [RequestId]: xx
2021/3/3 上午10:53:50 [HostId]: null
kill进程pod重启或过一段时间后taskManager正常日志：
2021-03-03 03:18:21,602 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Successfully committed offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午11:18:26 2021-03-03 03:18:26,573 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Committing offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午11:18:26 2021-03-03 03:18:26,582 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Successfully committed offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午11:18:31 2021-03-03 03:18:31,571 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Committing offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午11:18:31 2021-03-03 03:18:31,580 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Successfully committed offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午11:18:36 2021-03-03 03:18:36,633 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Committing offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
2021/3/3 上午11:18:36 2021-03-03 03:18:36,642 INFO
org.apache.flink.streaming.connectors.pulsar.internal.PulsarMetadataReader [] -
Successfully committed offset 12716:7:-1:1 to topic
TopicRange{topic=persistent://public/xx/xxxx,
key-range=SerializableRange{range=[0, 65535]}}
oss内文件：
[cid:AD54B42B-CDD0-4EAC-93A8-BCD11C8D1904]
chk-10880目录：
[cid:FD31EF7D-6D35-4B26-9A2A-FA13170EBB70]
