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Posted to hdfs-dev@hadoop.apache.org by "liying (Jira)" <ji...@apache.org> on 2023/10/30 07:29:00 UTC
[jira] [Created] (HDFS-17244) Avoid affecting the overall logic of checkpoint when I/O exceptions occur
liying created HDFS-17244:
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Summary: Avoid affecting the overall logic of checkpoint when I/O exceptions occur
Key: HDFS-17244
URL: https://issues.apache.org/jira/browse/HDFS-17244
Project: Hadoop HDFS
Issue Type: New Feature
Affects Versions: 3.2.1
Reporter: liying
Attachments: image-2023-10-30-15-27-47-567.png, image-2023-10-30-15-28-14-552.png
Sometimes it will checkpoint repeatedly on our cluster with multiple SNNS（hdfs verison ：3.2.1）. We check the codes， and find that it will send fsimage file to all other namenode. When it sends the fimage file to the other snns， it will fail because of other snns will refuse to receive the file。 It will affect the whole login of checkpointing。For example， we check the result of transfering fsimage to snn by feature‘s geting method， and it will throw the IOException and don't update the
lastUploadTime and the lastCheckpointTime，then it will checkpoint repeatedly.
!image-2023-10-30-15-27-47-567.png!
!image-2023-10-30-15-28-14-552.png!
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