[
https://issues.apache.org/jira/browse/CASSANDRA-20725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17985833#comment-17985833
]
guo Maxwell commented on CASSANDRA-20725:
-----------------------------------------
Hi I think nb-997878-xxx is not the sstable which has some problem, can you
upload all the log? or you can just classify the sstable files of this node
and see the number of sstable files of each category.
> NullPointerException on opening SSTables
> ----------------------------------------
>
> Key: CASSANDRA-20725
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20725
> Project: Apache Cassandra
> Issue Type: Bug
> Reporter: Christoph Schnepf
> Priority: Normal
>
> Hi,
> we did the update from Cassandra 4.1.8 to Cassandra 4.1.9 on a 30-node
> cluster in a rolling fashion, however, on 1 node, 1 single SSTable was
> showing a NullPointerException.
> {code:java}
> INFO [main] 2025-06-23 10:41:38,576 UTC ColumnFamilyStore.java:484 -
> Initializing mykeyspace.MyTWCSTable
> INFO [SSTableBatchOpen:2] 2025-06-23 10:41:38,583 UTC
> SSTableReaderBuilder.java:354 - Opening
> /var/opt/cassandra/mykeyspace/MyTWCSTable-ed2fa920c27411eabe8a17a890aa6eb4/nb-1008071-big
> (8.141GiB)
> ...
> ... more "Opening" lines
> ...
> INFO [SSTableBatchOpen:32] 2025-06-23 10:41:38,586 UTC
> SSTableReaderBuilder.java:354 - Opening
> /var/opt/cassandra/mykeyspace/MyTWCSTable-ed2fa920c27411eabe8a17a890aa6eb4/nb-997878-big
> (7.357GiB)
> ERROR [SSTableBatchOpen:27] 2025-06-23 10:41:38,586 UTC
> JVMStabilityInspector.java:68 - Exception in thread
> Thread[SSTableBatchOpen:27,5,SSTableBatchOpen]
> java.lang.NullPointerException: null
> at
> org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:510)
> at
> org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:381)
> at
> org.apache.cassandra.io.sstable.format.SSTableReader$2.run(SSTableReader.java:551)
> at
> org.apache.cassandra.concurrent.FutureTask$2.call(FutureTask.java:124)
> at org.apache.cassandra.concurrent.FutureTask.call(FutureTask.java:61)
> at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:71)
> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown
> Source)
> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
> Source)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Unknown Source)
> INFO [SSTableBatchOpen:13] 2025-06-23 10:41:38,594 UTC
> SSTableReaderBuilder.java:354 - Opening
> /var/opt/cassandra/mykeyspace/MyTWCSTable-ed2fa920c27411eabe8a17a890aa6eb4/nb-1013913-big
> (307.642MiB)
> INFO [SSTableBatchOpen:27] 2025-06-23 10:41:38,629 UTC
> SSTableReaderBuilder.java:354 - Opening
> /var/opt/cassandra/mykeyspace/MyTWCSTable-ed2fa920c27411eabe8a17a890aa6eb4/nb-1001329-big
> (7.481GiB)
> INFO [SSTableBatchOpen:26] 2025-06-23 10:41:38,679 UTC
> SSTableReaderBuilder.java:354 - Opening
> /var/opt/cassandra/mykeyspace/MyTWCSTable-ed2fa920c27411eabe8a17a890aa6eb4/nb-1005032-big
> (8.213GiB)
> DEBUG [main] 2025-06-23 10:41:39,228 UTC DiskBoundaryManager.java:54 -
> Refreshing disk boundary cache for mykeyspace.MyTWCSTable
> DEBUG [main] 2025-06-23 10:41:39,235 UTC DiskBoundaryManager.java:93 - Got
> local ranges [<removed-for-readability>] (ringVersion = 30)
> DEBUG [main] 2025-06-23 10:41:39,235 UTC DiskBoundaryManager.java:57 -
> Updating boundaries from null to
> DiskBoundaries{directories=[DataDirectory{location=/var/opt/cassandra}],
> positions=[max(9223372036854775807)], ringVersion=30, directoriesVersion=0}
> for mykeyspace.MyTWCSTable
> DEBUG [main] 2025-06-23 10:41:39,236 UTC TimeWindowCompactionStrategy.java:68
> - Enabling tombstone compactions for TWCS
> DEBUG [main] 2025-06-23 10:41:39,236 UTC TimeWindowCompactionStrategy.java:68
> - Enabling tombstone compactions for TWCS
> INFO [main] 2025-06-23 10:41:39,242 UTC ColumnFamilyStore.java:484 -
> Initializing mykeyspace.MyTWCSTable2
> {code}
> The SSTable is present on disk and at first glance I can not see a problem.
> {code:java}
> [ec2-user@ip-1-2-3-4 log]$ sudo ls -la
> /var/opt/cassandra/mykeyspace/MyTWCSTable-ed2fa920c27411eabe8a17a890aa6eb4/ |
> grep nb-9978
> -rw-r--r-- 1 user user 5711584 May 28 00:35
> nb-997878-big-CompressionInfo.db
> -rw-r--r-- 1 user user 7899003536 May 28 00:35 nb-997878-big-Data.db
> -rw-r--r-- 1 user user 9 May 28 00:35 nb-997878-big-Digest.crc32
> -rw-r--r-- 1 user user 6440 May 28 00:35 nb-997878-big-Filter.db
> -rw-r--r-- 1 user user 36811583 May 28 00:35 nb-997878-big-Index.db
> -rw-r--r-- 1 user user 17827 May 28 00:35 nb-997878-big-Statistics.db
> -rw-r--r-- 1 user user 1197 May 28 00:35 nb-997878-big-Summary.db
> -rw-r--r-- 1 user user 92 May 28 00:35 nb-997878-big-TOC.txt
> [ec2-user@ip-1-2-3-4 log]$
> {code}
> Also the Cassandra startup just continues and Cassandra is running fine. I
> see no further issues on various metrics or in the logs.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org
