druid-cassandra-storage doesn't include high-scale-lib dependency

[egor-ryashin]

I've been investigating the issue (#7387) and got this error while the indexing task was starting up:

2019-04-08T20:38:23,441 ERROR [main] org.apache.druid.cli.CliPeon - Error when starting up.  Failing.
com.google.inject.ProvisionException: Unable to provision, see the following errors:

1) Error injecting constructor, java.lang.NoClassDefFoundError: org/cliffc/high_scale_lib/NonBlockingHashMap

druid-cassandra-storage extension lacks high-scale-lib dependency and it was excluded sometime ago:
extensions-contrib/cassandra-storage/pom.xml:116

               <exclusion>
                    <groupId>com.github.stephenc.high-scale-lib</groupId>
                    <artifactId>high-scale-lib</artifactId>
                </exclusion>

probably this is related #4313

[chariswang188996]

I found <groupId>com.github.stephenc.high-scale-lib</groupId> in extensions-contrib/cassandra-storage/pom.xml:117,
Then checked the pom.xml file mentioned in extensions-contrib/cassandra-storage/pom.xml:33
<relativePath>../../pom.xml</relativePath> . I didn't find any dependency of high-scale-lib in this file.

I've downloaded the high-scale-lib-1.1.4.jar to druid/extensions/druid-cassandra-storage for walking around,thanks to egor-ryashin for your previous efforts #7387,But no data was writen to the cassandra deep storage.

[egor-ryashin]

@leventov as you've worked on #4313, probably, you understand better how to fix it. Right now I think that maven exclusion should be removed

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Ken-LiuL]

same issue

[stale]

This issue is no longer marked as stale.

[Ken-LiuL]

should remove the exclusion part

[stale]

This issue has been marked as stale due to 280 days of inactivity. It will be closed in 4 weeks if no further activity occurs. If this issue is still relevant, please simply write any comment. Even if closed, you can still revive the issue at any time or discuss it on the dev@druid.apache.org list. Thank you for your contributions.

[stale]

This issue has been closed due to lack of activity. If you think that is incorrect, or the issue requires additional review, you can revive the issue at any time.