liang xie created HDFS-4120:
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Summary: Add a new "-skipSharedEditsCheck" option for
BootstrapStandby
Key: HDFS-4120
URL: https://issues.apache.org/jira/browse/HDFS-4120
Project: Hadoop HDFS
Issue Type: Improvement
Components: ha, name-node
Affects Versions: 2.0.2-alpha, 3.0.0
Reporter: liang xie
Assignee: liang xie
Priority: Minor
Per
https://issues.apache.org/jira/browse/HDFS-3752?focusedCommentId=13449466&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13449466
, let's introduce a new option, it should be very safe, but really useful for
some corner case. e.g. when SNN losts local storage, we need to reset SNN, but
in current trunk, it'll always get a FATAL msg and could never be successful.
Another workaroud for this case, is full-sync the "current" directory from
ANN, but it'll be cost more disk-space & net bandwidth, IMHO.
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