Karthik Palanisamy created HDFS-14164:
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Summary: Namenode should not be started if safemode threshold is
out of boundary
Key: HDFS-14164
URL: https://issues.apache.org/jira/browse/HDFS-14164
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 3.1.1, 2.7.3
Environment: #apache hadoop-3.1.1
Reporter: Karthik Palanisamy
Assignee: Karthik Palanisamy
Mistakenly, User has configured safemode
threshold(dfs.namenode.safemode.threshold-pct) to 090 instead of 0.90. Due to
this change, UI has the incorrect summary and it never turns to be out of
safemode until manual intervention. Because total block count will never match
with an additional block count, which is to be reported.
i.e
Wrong setting: dfs.namenode.safemode.threshold-pct=090
Summary:
Safe mode is ON. The reported blocks 0 needs additional 360 blocks to reach the
threshold 90.0000 of total blocks 4. The number of live datanodes 3 has reached
the minimum number 0. Safe mode will be turned off automatically once the
thresholds have been reached.
10 files and directories, 4 blocks (4 replicated blocks, 0 erasure coded block
groups) = 14 total filesystem object(s).
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