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https://issues.apache.org/jira/browse/HBASE-5415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215175#comment-13215175
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Jean-Daniel Cryans commented on HBASE-5415:
-------------------------------------------
bq. Whats difference between miscellaneous dirs under hbase.rootdir and an
actual table directory that is missing its .tableinfo file?
Former's HTD is null, latter gets a FNFE.
bq. We're changing our API when we remove TEE from public methods?
Technically no, TEE (and FNFE FWIW) are both IOEs so there's no change there. I
removed TEE specifically because it isn't thrown anymore.
> FSTableDescriptors should handle random folders in hbase.root.dir better
> ------------------------------------------------------------------------
>
> Key: HBASE-5415
> URL: https://issues.apache.org/jira/browse/HBASE-5415
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.92.0
> Reporter: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.92.1, 0.94.0
>
> Attachments: HBASE-5415.patch
>
>
> I faked an upgrade on a test cluster using our dev data so I had to distcp
> the data between the two clusters, but after starting up and doing the
> migration and whatnot the web UI didn't show any table. The reason was in the
> master's log:
> {quote}
> org.apache.hadoop.hbase.TableExistsException: No descriptor for
> _distcp_logs_e0ehek
> at
> org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:164)
> at
> org.apache.hadoop.hbase.util.FSTableDescriptors.getAll(FSTableDescriptors.java:182)
> at
> org.apache.hadoop.hbase.master.HMaster.getHTableDescriptors(HMaster.java:1554)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1326)
> {quote}
> I don't think we need to show a full stack (just a WARN maybe), this
> shouldn't kill the request (still see tables in the web UI), and why is that
> a TableExistsException?
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