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From "Dimitar Dimitrov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-13692) CompactionAwareWriter_getWriteDirectory throws incompatible exceptions
Date Fri, 01 Sep 2017 08:48:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-13692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dimitar Dimitrov updated CASSANDRA-13692:
-----------------------------------------
    Attachment: c13692-2.2-dtest-results.PNG
                c13692-2.2-testall-results.PNG
                c13692-3.0-dtest-results.PNG
                c13692-3.0-testall-results.PNG
                c13692-3.11-dtest-results.PNG
                c13692-3.11-testall-results.PNG
                c13692-dtest-results.PNG
                c13692-testall-results.PNG

Adding screenshots from CI results.

> CompactionAwareWriter_getWriteDirectory throws incompatible exceptions
> ----------------------------------------------------------------------
>
>                 Key: CASSANDRA-13692
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13692
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Hao Zhong
>            Assignee: Dimitar Dimitrov
>              Labels: lhf
>         Attachments: c13692-2.2-dtest-results.PNG, c13692-2.2-testall-results.PNG, c13692-3.0-dtest-results.PNG,
c13692-3.0-testall-results.PNG, c13692-3.11-dtest-results.PNG, c13692-3.11-testall-results.PNG,
c13692-dtest-results.PNG, c13692-testall-results.PNG
>
>
> The CompactionAwareWriter_getWriteDirectory throws RuntimeException:
> {code}
> public Directories.DataDirectory getWriteDirectory(Iterable<SSTableReader> sstables,
long estimatedWriteSize)
>     {
>         File directory = null;
>         for (SSTableReader sstable : sstables)
>         {
>             if (directory == null)
>                 directory = sstable.descriptor.directory;
>             if (!directory.equals(sstable.descriptor.directory))
>             {
>                 logger.trace("All sstables not from the same disk - putting results in
{}", directory);
>                 break;
>             }
>         }
>         Directories.DataDirectory d = getDirectories().getDataDirectoryForFile(directory);
>         if (d != null)
>         {
>             long availableSpace = d.getAvailableSpace();
>             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)));
>             logger.trace("putting compaction results in {}", directory);
>             return d;
>         }
>         d = getDirectories().getWriteableLocation(estimatedWriteSize);
>         if (d == null)
>             throw new RuntimeException(String.format("Not enough disk space to store
%s",
>                                                      FBUtilities.prettyPrintMemory(estimatedWriteSize)));
>         return d;
>     }
> {code}
> However, the thrown exception does not  trigger the failure policy. CASSANDRA-11448 fixed
a similar problem. The buggy code is:
> {code}
> protected Directories.DataDirectory getWriteDirectory(long writeSize)
>     {
>         Directories.DataDirectory directory = getDirectories().getWriteableLocation(writeSize);
>         if (directory == null)
>             throw new RuntimeException("Insufficient disk space to write " + writeSize
+ " bytes");
>         return directory;
>     }
> {code}
> The fixed code is:
> {code}
> protected Directories.DataDirectory getWriteDirectory(long writeSize)
>     {
>         Directories.DataDirectory directory = getDirectories().getWriteableLocation(writeSize);
>         if (directory == null)
>             throw new FSWriteError(new IOException("Insufficient disk space to write
" + writeSize + " bytes"), "");
>         return directory;
>     }
> {code}
> The fixed code throws FSWE and triggers the failure policy.



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