[CASSANDRA-14166] sstabledump tries to delete a file

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.0.17, 3.11.3, 4.0-alpha1, 4.0
• Component/s: Legacy/Tools
• Severity: Normal
• Assignee: Kurt Greaves
• Reporter: Python_Max

Authors

Kurt Greaves

• Created: 12/Jan/18 15:04
• Updated: 15/May/20 08:01
• Resolved: 08/Mar/18 01:50

Description

Directory /var/lib/cassandra/data/<keyspace>/<table> has cassandra:cassandra owner.
An error happens when sstabledump executed on file in that directory by regular user:

$ sstabledump mc-56801-big-Data.db
Exception in thread "main" FSWriteError in /var/lib/cassandra/data/<keyspace>/<table>/mc-56801-big-Summary.db
        at org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:142)
        at org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:159)
        at org.apache.cassandra.io.sstable.format.SSTableReader.saveSummary(SSTableReader.java:935)
        at org.apache.cassandra.io.sstable.format.SSTableReader.saveSummary(SSTableReader.java:920)
        at org.apache.cassandra.io.sstable.format.SSTableReader.load(SSTableReader.java:788)
        at org.apache.cassandra.io.sstable.format.SSTableReader.load(SSTableReader.java:731)
        at org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:516)
        at org.apache.cassandra.io.sstable.format.SSTableReader.openNoValidation(SSTableReader.java:396)
        at org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:191)
Caused by: java.nio.file.AccessDeniedException: /var/lib/cassandra/data/<keyspace>/<table>/mc-56801-big-Summary.db
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
        at sun.nio.fs.UnixFileSystemProvider.implDelete(UnixFileSystemProvider.java:244)
        at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
        at java.nio.file.Files.delete(Files.java:1126)
        at org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:136)
        ... 8 more

I have changed bloom_filter_fp_chance for that table couple months ago, so I believe that's the reason why SSTableReader wants to recreate summary file. But when used in sstabledump it should not try to modify / delete any files.

Issue Links

• Is contained by: CASSANDRA-11163 Summaries are needlessly rebuilt when the BF FP ratio is changed