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https://issues.apache.org/jira/browse/HDDS-1854?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal updated HDDS-1854:
--------------------------------
Labels: Triaged (was: )
> Print intuitive error message at client when the pipeline returned by SCM has
> no datanode
> -----------------------------------------------------------------------------------------
>
> Key: HDDS-1854
> URL: https://issues.apache.org/jira/browse/HDDS-1854
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Components: Ozone Client
> Reporter: Nanda kumar
> Priority: Major
> Labels: Triaged
>
> We are throwing {{IllegalArgumentException}} in OzoneClient when the pipeline
> returned by SCM doesn't have any datanode information. Instead of throwing
> {{IllegalArgumentException}}, we can throw custom user friendly exception
> which is easy to understand.
> Existing exception trace:
> {noformat}
> AssertionError: Ozone get Key failed with
> output=[java.lang.IllegalArgumentException
> at
> com.google.common.base.Preconditions.checkArgument(Preconditions.java:72)
> at
> org.apache.hadoop.hdds.scm.XceiverClientManager.acquireClient(XceiverClientManager.java:150)
> at
> org.apache.hadoop.hdds.scm.XceiverClientManager.acquireClientForReadData(XceiverClientManager.java:143)
> at
> org.apache.hadoop.hdds.scm.storage.BlockInputStream.getChunkInfos(BlockInputStream.java:154)
> at
> org.apache.hadoop.hdds.scm.storage.BlockInputStream.initialize(BlockInputStream.java:118)
> at
> org.apache.hadoop.hdds.scm.storage.BlockInputStream.read(BlockInputStream.java:222)
> at
> org.apache.hadoop.ozone.client.io.KeyInputStream.read(KeyInputStream.java:171)
> at
> org.apache.hadoop.ozone.client.io.OzoneInputStream.read(OzoneInputStream.java:47)
> at java.base/java.io.InputStream.read(InputStream.java:205)
> at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:94)
> at
> org.apache.hadoop.ozone.web.ozShell.keys.GetKeyHandler.call(GetKeyHandler.java:98)
> at
> org.apache.hadoop.ozone.web.ozShell.keys.GetKeyHandler.call(GetKeyHandler.java:48)
> at picocli.CommandLine.execute(CommandLine.java:1173)
> at picocli.CommandLine.access$800(CommandLine.java:141)
> at picocli.CommandLine$RunLast.handle(CommandLine.java:1367)
> at picocli.CommandLine$RunLast.handle(CommandLine.java:1335)
> at
> picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:1243)
> at picocli.CommandLine.parseWithHandlers(CommandLine.java:1526)
> at picocli.CommandLine.parseWithHandler(CommandLine.java:1465)
> at
> org.apache.hadoop.hdds.cli.GenericCli.execute(GenericCli.java:65)
> at
> org.apache.hadoop.ozone.web.ozShell.OzoneShell.execute(OzoneShell.java:60)
> at org.apache.hadoop.hdds.cli.GenericCli.run(GenericCli.java:56)
> at
> org.apache.hadoop.ozone.web.ozShell.OzoneShell.main(OzoneShell.java:53)]
> {noformat}
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