Kishan Karunaratne created CASSANDRA-8902: ---------------------------------------------
Summary: Missing data files, database corruption Key: CASSANDRA-8902 URL: https://issues.apache.org/jira/browse/CASSANDRA-8902 Project: Cassandra Issue Type: Bug Environment: ruby-driver 2.1.0 | C* 2.0.12 Reporter: Kishan Karunaratne During a recent duration test run of the ruby-driver (as well as a previous run), I see many of the following exceptions thrown in the system.log: {noformat} ERROR [CompactionExecutor:81] 2015-02-20 22:32:33,064 CassandraDaemon.java (line 199) Exception in thread Thread[CompactionExecutor:81,1,main] java.lang.RuntimeException: java.io.FileNotFoundException: /srv/performance/cass/data/duration_test1/ints/duration_test1-ints-jb-39-Data.db (No such file or directory) at org.apache.cassandra.io.compress.CompressedThrottledReader.open(CompressedThrottledReader.java:52) at org.apache.cassandra.io.sstable.SSTableReader.openDataReader(SSTableReader.java:1399) at org.apache.cassandra.io.sstable.SSTableScanner.<init>(SSTableScanner.java:67) at org.apache.cassandra.io.sstable.SSTableReader.getScanner(SSTableReader.java:1205) at org.apache.cassandra.io.sstable.SSTableReader.getScanner(SSTableReader.java:1217) at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.getScanners(AbstractCompactionStrategy.java:272) at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.getScanners(AbstractCompactionStrategy.java:278) at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:131) at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:60) at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59) at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:198) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) Caused by: java.io.FileNotFoundException: /srv/performance/cass/data/duration_test1/ints/duration_test1-ints-jb-39-Data.db (No such file or directory) at java.io.RandomAccessFile.open(Native Method) at java.io.RandomAccessFile.<init>(RandomAccessFile.java:233) at org.apache.cassandra.io.util.RandomAccessReader.<init>(RandomAccessReader.java:58) at org.apache.cassandra.io.compress.CompressedRandomAccessReader.<init>(CompressedRandomAccessReader.java:76) at org.apache.cassandra.io.compress.CompressedThrottledReader.<init>(CompressedThrottledReader.java:34) at org.apache.cassandra.io.compress.CompressedThrottledReader.open(CompressedThrottledReader.java:48) ... 17 more {noformat} I've checked this data directory and indeed this specific db file is missing. This would signal a database corruption. The duration test uses a 3-node cluster. It seems like the nodes have also gone out of sync. For example, getting a nodetool status on one node gives: {noformat} $ cassandra/bin/nodetool -h 10.240.61.210 status -- Address Load Tokens Owns Host ID Rack DN 10.240.210.69 533.32 MB 256 32.3% 2947fe5e-f149-4ff6-b26c-570ae72b7606 RAC1 DN 10.240.185.204 570.86 MB 256 36.7% 3a6e2152-c7dc-457a-a4c5-4c6f01986dd0 RAC1 UN 10.240.61.210 877.43 MB 256 31.0% c3b1beff-9587-4851-85a9-05a9ba6deaff RAC1 {noformat} While on another node it gives: {noformat} $ cassandra/bin/nodetool -h 10.240.210.69 status (or 10.240.185.204) -- Address Load Tokens Owns Host ID Rack UN 10.240.210.69 4.83 GB 256 32.3% 2947fe5e-f149-4ff6-b26c-570ae72b7606 RAC1 UN 10.240.185.204 4.88 GB 256 36.7% 3a6e2152-c7dc-457a-a4c5-4c6f01986dd0 RAC1 DN 10.240.61.210 877.43 MB 256 31.0% c3b1beff-9587-4851-85a9-05a9ba6deaff RAC1 {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)