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eBugs edited comment on CASSANDRA-15114 at 5/7/19 3:41 AM: ----------------------------------------------------------- We have triggered the first exception in the description by forcing the {{Directories$DataDirectory.getAvailableSpace()}} to return 0, so that {{availableSpace}} is less than {{estimatedWriteSize}}. And we found that, after the exception is thrown, the Cassandra node does not stop even if {{disk_failure_policy}} is set to {{stop}} (the default value). The second exception should have the same issue. IMHO, it may be better to throw a {{FSWriteError}} wrapping an {{IOException}}, which is similar to CASSANDRA-11448, so that user's {{disk_failure_policy}} is honored. As a reference, {{Directories.getWriteableLocationAsFile()}} in Cassandra-3.11 also throws {{FSWriteError}} in a similar situation. was (Author: ebugs-in-cloud-systems): We have triggered the first exception in the description by forcing the {{Directories$DataDirectory.getAvailableSpace()}} to return 0, so that {{availableSpace}} is less than {{estimatedWriteSize}}. And we found that, after the exception is thrown, the Cassandra node does not stop even if {{disk_failure_policy}} is set to {{stop}} (the default value). The second exception should have the same issue. IMHO, it may be better to throw a {{FSWriteError}} wrapping an {{IOException}}, which is similar to CASSANDRA-11448, so that user's {{disk_failure_policy}} is honored. As a reference, {{Directories.getWriteableLocationAsFile()}} in Cassandra-3.11 also throws {{FSWriteError}} in similar situation. > CompactionAwareWriter.getWriteDirectory() throws RuntimeException when > running out of disk space > ------------------------------------------------------------------------------------------------ > > Key: CASSANDRA-15114 > URL: https://issues.apache.org/jira/browse/CASSANDRA-15114 > Project: Cassandra > Issue Type: Bug > Reporter: eBugs > 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org