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From "Russell Alexander Spitzer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-7608) StressD can't create keyspaces with Write Command
Date Thu, 24 Jul 2014 19:46:38 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Russell Alexander Spitzer updated CASSANDRA-7608:
-------------------------------------------------

    Attachment: CASSANDRA-7608-2.1.patch

> StressD can't create keyspaces with Write Command
> -------------------------------------------------
>
>                 Key: CASSANDRA-7608
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7608
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>            Reporter: Russell Alexander Spitzer
>            Assignee: Russell Alexander Spitzer
>            Priority: Minor
>             Fix For: 2.1.1
>
>         Attachments: CASSANDRA-7608-2.1.patch
>
>
> It is impossible to run the default stress command via the dameon ./stress write
> Because the column names are HeapByteBuffers so they get ignored during serilization
(no error is thrown) and then when the object is deserialized on the server the settings.columns.names
is null. This leads to a null pointer on the dameon for what would have worked had it run
locally.
> Settings object on the Local machine
> {code}
> columns = {org.apache.cassandra.stress.settings.SettingsColumn@1465}
> maxColumnsPerKey = 5
> names = {java.util.Arrays$ArrayList@1471} size = 5
> [0] = {java.nio.HeapByteBuffer@1478}"java.nio.HeapByteBuffer[pos=0 lim=2 cap=2]"
> [1] = {java.nio.HeapByteBuffer@1483}"java.nio.HeapByteBuffer[pos=0 lim=2 cap=2]"
> [2] = {java.nio.HeapByteBuffer@1484}"java.nio.HeapByteBuffer[pos=0 lim=2 cap=2]"
> [3] = {java.nio.HeapByteBuffer@1485}"java.nio.HeapByteBuffer[pos=0 lim=2 cap=2]"
> [4] = {java.nio.HeapByteBuffer@1486}"java.nio.HeapByteBuffer[pos=0 lim=2 cap=2]"
> {code}
> Setings object on the StressD Machine
> {code}
> columns = {org.apache.cassandra.stress.settings.SettingsColumn@810}
> maxColumnsPerKey = 5
> names = null
> {code}
> This leads to the null pointer in 
> {code}
> Exception in thread "Thread-1" java.lang.NullPointerException
>     at org.apache.cassandra.stress.settings.SettingsSchema.createKeySpacesThrift(SettingsSchema.java:94)
>     at org.apache.cassandra.stress.settings.SettingsSchema.createKeySpaces(SettingsSchema.java:67)
>     at org.apache.cassandra.stress.settings.StressSettings.maybeCreateKeyspaces(StressSettings.java:193)
>     at org.apache.cassandra.stress.StressAction.run(StressAction.java:59)
>     at java.lang.Thread.run(Thread.java:745)
> {code}
> Which refers to
> {code}
>        for (int i = 0; i < settings.columns.names.size(); i++)
>             standardCfDef.addToColumn_metadata(new ColumnDef(settings.columns.names.get(i),
"BytesType"));
> {code}
> Possible solution:
> Just use the settings.columns.namestr and convert them to byte buffers at this point
in the code. 



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