Surendra Singh Lilhore created HDFS-14076:
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Summary: NameNodeResourceChecker#isResourceAvailable() should
check the linux filesystem inode usage.
Key: HDFS-14076
URL: https://issues.apache.org/jira/browse/HDFS-14076
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 3.1.1
Reporter: Surendra Singh Lilhore
Assignee: Surendra Singh Lilhore
Linux system gives the *"No space left on device"* exception in two cases.
# Disk space is not available
# Linux inode limit is exceeded
NameNodeResourceChecker currently only checking the disk space, it should check
the inode limit also.
We got *"No space left on device"* exception even disk space was there and roll
edit operation is failed. After analysis we found that Inode usage for the
system is 100%.
{noformat}
2018-11-10 18:59:37,913 ERROR org.apache.hadoop.hdfs.server.namenode.FSEditLog:
Error: starting log segment 796xxxxxx failed for (journal
JournalAndStream(mgr=FileJournalManager(root=/opt/xxxxxxxxxx), stream=null))
java.io.FileNotFoundException:
/opt/xxxxxxx/edits_inprogress_0000000000007964819 (No space left on device)
at java.io.RandomAccessFile.open0(Native Method)
at java.io.RandomAccessFile.open(RandomAccessFile.java:316)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243)
at
org.apache.hadoop.hdfs.server.namenode.EditLogFileOutputStream.<init>(EditLogFileOutputStream.java:88){noformat}
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