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Posted to issues@hbase.apache.org by "Duo Zhang (JIRA)" <ji...@apache.org> on 2017/09/26 12:57:00 UTC
[jira] [Reopened] (HBASE-18762) Canary sink type cast error
[ https://issues.apache.org/jira/browse/HBASE-18762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Duo Zhang reopened HBASE-18762:
-------------------------------
There is a findbugs warning which I believe is introduced by the patch here.
Seem no pre commit check for the patch here? Why?
Thanks.
> Canary sink type cast error
> ---------------------------
>
> Key: HBASE-18762
> URL: https://issues.apache.org/jira/browse/HBASE-18762
> Project: HBase
> Issue Type: Bug
> Reporter: Chinmay Kulkarni
> Assignee: Chinmay Kulkarni
> Fix For: 2.0.0, 3.0.0, 1.4.0, 1.5.0
>
> Attachments: HBASE-18762.001.patch
>
>
> When running the main method of Canary.java, we see the following error:
> Exception in thread "main" java.lang.ClassCastException: org.apache.hadoop.hbase.tool.Canary$RegionServerStdOutSink cannot be cast to org.apache.hadoop.hbase.tool.Canary$RegionStdOutSink
> at org.apache.hadoop.hbase.tool.Canary.newMonitor(Canary.java:911)
> at org.apache.hadoop.hbase.tool.Canary.run(Canary.java:796)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.hbase.tool.Canary.main(Canary.java:1571)
> This happens because we typecast the sink depending on the mode (zookeeper mode/region server mode) that Canary is configured in. In case no mode is specified, we typecast the sink into _RegionStdOutSink_. In general, it is possible to provide inconsistent mode and sink types while running Canary.
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