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https://issues.apache.org/jira/browse/SAMZA-409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14127071#comment-14127071
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Martin Kleppmann commented on SAMZA-409:
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If I remove the samza-kv dependency, the build fails with:
{noformat}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on
project hello-samza: Compilation failure: Compilation failure:
[ERROR]
/Users/martin/dev/samza/hello-samza/src/main/java/samza/examples/wikipedia/task/WikipediaStatsStreamTask.java:[27,35]
cannot find symbol
[ERROR] symbol: class KeyValueStore
[ERROR] location: package org.apache.samza.storage.kv
[ERROR]
/Users/martin/dev/samza/hello-samza/src/main/java/samza/examples/wikipedia/task/WikipediaStatsStreamTask.java:[43,11]
cannot find symbol
[ERROR] symbol: class KeyValueStore
[ERROR] location: class samza.examples.wikipedia.task.WikipediaStatsStreamTask
[ERROR]
/Users/martin/dev/samza/hello-samza/src/main/java/samza/examples/wikipedia/task/WikipediaStatsStreamTask.java:[46,19]
cannot find symbol
[ERROR] symbol: class KeyValueStore
[ERROR] location: class samza.examples.wikipedia.task.WikipediaStatsStreamTask
{noformat}
> hello-samza's wikipedia-stats job won't start
> ---------------------------------------------
>
> Key: SAMZA-409
> URL: https://issues.apache.org/jira/browse/SAMZA-409
> Project: Samza
> Issue Type: Bug
> Components: hello-samza
> Reporter: Martin Kleppmann
> Assignee: Martin Kleppmann
> Attachments: SAMZA-409.patch
>
>
> Since SAMZA-123, the wikipedia-stats job in hello-samza fails on startup with
> the following error:
> org.apache.samza.SamzaException: Storage factories configured, but no
> checkpoint manager has been specified. Unable to start job as there would be
> no place to store changelog partition mapping.
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