java.lang.RuntimeException: java.lang.RuntimeException: java.io.FileNotFoundException: /home/cassandra/data/my_keyspace/my_table/my_keyspace-my_table-jb-51-Data.db (Too many open files)

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Root Cause Analysis

  1. java.io.FileNotFoundException

    /home/cassandra/data/my_keyspace/my_table/my_keyspace-my_table-jb-51-Data.db (Too many open files)

    at java.io.RandomAccessFile.open()
  2. Java RT
    RandomAccessFile.<init>
    1. java.io.RandomAccessFile.open(Native Method)
    2. java.io.RandomAccessFile.<init>(RandomAccessFile.java:233)
    2 frames
  3. org.apache.cassandra
    CompactionManager$9.run
    1. org.apache.cassandra.io.util.RandomAccessReader.<init>(RandomAccessReader.java:58)
    2. org.apache.cassandra.io.compress.CompressedRandomAccessReader.<init>(CompressedRandomAccessReader.java:76)
    3. org.apache.cassandra.io.compress.CompressedRandomAccessReader.open(CompressedRandomAccessReader.java:43)
    4. org.apache.cassandra.io.util.CompressedPoolingSegmentedFile.createReader(CompressedPoolingSegmentedFile.java:48)
    5. org.apache.cassandra.io.util.PoolingSegmentedFile.getSegment(PoolingSegmentedFile.java:39)
    6. org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:1195)
    7. org.apache.cassandra.db.columniterator.SimpleSliceReader.<init>(SimpleSliceReader.java:57)
    8. org.apache.cassandra.db.columniterator.SSTableSliceIterator.createReader(SSTableSliceIterator.java:65)
    9. org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:42)
    10. org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:167)
    11. org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:62)
    12. org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:250)
    13. org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:53)
    14. org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1550)
    15. org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1379)
    16. org.apache.cassandra.db.Keyspace.getRow(Keyspace.java:327)
    17. org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:65)
    18. org.apache.cassandra.service.pager.SliceQueryPager.queryNextPage(SliceQueryPager.java:77)
    19. org.apache.cassandra.service.pager.AbstractQueryPager.fetchPage(AbstractQueryPager.java:84)
    20. org.apache.cassandra.service.pager.SliceQueryPager.fetchPage(SliceQueryPager.java:33)
    21. org.apache.cassandra.service.pager.QueryPagers$1.next(QueryPagers.java:148)
    22. org.apache.cassandra.service.pager.QueryPagers$1.next(QueryPagers.java:137)
    23. org.apache.cassandra.db.Keyspace.indexRow(Keyspace.java:400)
    24. org.apache.cassandra.db.index.SecondaryIndexBuilder.build(SecondaryIndexBuilder.java:62)
    25. org.apache.cassandra.db.compaction.CompactionManager$9.run(CompactionManager.java:833)
    25 frames
  4. Java RT
    Thread.run
    1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    2. java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    3. java.util.concurrent.FutureTask.run(FutureTask.java:166)
    4. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    5. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    6. java.lang.Thread.run(Thread.java:724)
    6 frames