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From "Chris Lohfink (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13264) NullPointerException in sstabledump
Date Fri, 24 Feb 2017 15:56:44 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15882948#comment-15882948
] 

Chris Lohfink commented on CASSANDRA-13264:
-------------------------------------------

duplicate of CASSANDRA-12002 ?

> NullPointerException in sstabledump
> -----------------------------------
>
>                 Key: CASSANDRA-13264
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13264
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>         Environment: Cassandra 3.0.9
> Java HotSpot(TM) 64-Bit Server VM version 25.112-b15 (Java version 1.8.0_112-b15)
> Linux 3.16
>            Reporter: Christian Esken
>            Priority: Minor
>              Labels: twcs
>
> sstabledump can fail with NullPointerException, when not all files are present on Disk.
This behavior is frequently present on Cassandra nodes with a high write-throughput and much
disk I/O. It looks like Cassandra writes the Data file fast, and the other files (Statistics,
...) later when it has time to do so. This can be even a minute later. Technically it is OK
for the Cassandra DB itself, but the sstabledump tool does not handle this gracefully.
> Current behavior:
>  - NullPointerException (see below)
> Expected behavior:
>  - More graceful behavior, e.g. a message to STDERR
> PS: This is minor priority, I may pick up the ticket myself if nobody else is faster.

> -----
> {code}
> ~/apache-cassandra-3.9/tools/bin/sstabledump /appdata/mc-53346-big-Data.db
> Exception in thread "main" java.lang.NullPointerException
>         at org.apache.cassandra.utils.FBUtilities.newPartitioner(FBUtilities.java:429)
>         at org.apache.cassandra.tools.SSTableExport.metadataFromSSTable(SSTableExport.java:104)
>         at org.apache.cassandra.tools.SSTableExport.main(SSTableExport.java:180)
> {code}
> FBUtilities.java:429 is the following line, and validationMetadata == null:
> bq. if (validationMetadata.partitioner.endsWith("LocalPartitioner"))



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