hdfs-du | Visualize your HDFS cluster usage | Data Visualization library
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kandi X-RAY | hdfs-du Summary
Visualize your HDFS cluster usage
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QUESTION
Having problem where HDFS (HDP v3.1.0) is running out of storage space (which is also causing problems with spark jobs hanging in ACCEPTED mode). I assume that there is some configuration where I can have HDFS use more of the storage space already present on the node hosts, but exactly what was not clear from quick googling. Can anyone with more experience help with this?
In Ambari UI, I see... (from ambari UI) (from NameNode UI).
Yet when looking at the overall hosts via ambari UI, there appears to be still a good amount of space left on the cluster hosts (the last 4 nodes in this list are the data nodes and each has a total of 140GB of storage space)
Not sure what setting are relevant, but here are the general setting in ambari: My interpretation of the "Reserved Space for HDFS" setting is that it shows there should be 13GB reserved for non-DFS (ie. local FS) storage, so does not seem to make sense that HDFS is already running out of space. Am I interpreting this wrongly? Any other HDFS configs that should be shown in this question?
Looking at the disk usage by HDFS, I see...
...ANSWER
Answered 2020-May-26 at 21:28You haven't mentioned if there is crappy data in /tmp
for example that could be cleaned.
Each datanode has 88.33 GB of storage?
If so, you cannot just create new HDDs to become attached to the cluster and suddenly create space.
dfs.data.dir
in hdfs-site
is a comma-separated list of mounted volumes on each datanode.
To get more storage, you need to format and mount more disks, then edit that property.
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