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https://issues.apache.org/jira/browse/CASSANDRA-15114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jon Meredith reassigned CASSANDRA-15114:
----------------------------------------
Assignee: Jon Meredith
> Cassandra does not follow user's disk_failure_policy when getWriteDirectory()
> runs out of disk space
> ----------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15114
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15114
> Project: Cassandra
> Issue Type: Bug
> Reporter: eBugs
> Assignee: Jon Meredith
> Priority: Normal
>
> Dear Cassandra developers, we are developing a tool to detect
> exception-related bugs in Java. Our prototype has spotted the following two
> {{throw}} statements whose exception class and error message indicate
> different error conditions.
>
> Version: Cassandra-3.11 (commit: 123113f7b887370a248669ee0db6fdf13df0146e)
> File:
> CASSANDRA-ROOT/src/java/org/apache/cassandra/db/compaction/writers/CompactionAwareWriter.java
> Line: 222 & 231
> {code:java}
> if (availableSpace < estimatedWriteSize)
> throw new RuntimeException(String.format("Not enough space to write %s to
> %s (%s available)",
>
> FBUtilities.prettyPrintMemory(estimatedWriteSize),
> d.location,
>
> FBUtilities.prettyPrintMemory(availableSpace)));{code}
> {code:java}
> d = getDirectories().getWriteableLocation(estimatedWriteSize);
> if (d == null)
> throw new RuntimeException(String.format("Not enough disk space to store
> %s",
>
> FBUtilities.prettyPrintMemory(estimatedWriteSize)));
> {code}
>
> {{RuntimeException}} is usually used to represent errors in the program logic
> (think of one of its subclasses, {{NullPointerException}}), while the error
> messages indicate that the Cassandra node is running out of disk space. This
> mismatch could be a problem. For example, the callers may miss the
> possibility that {{getWriteDirectory()}} can run out of disk space because it
> does not throw an accurate exception class (e.g., CASSANDRA-11448). Or, the
> callers trying to handle other {{RuntimeException}} may accidentally (and
> incorrectly) handle the out of disk space scenario.
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