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https://issues.apache.org/jira/browse/KUDU-3226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17262910#comment-17262910
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Abhishek commented on KUDU-3226:
--------------------------------
Appears to be the issue with the mode _kudu cluster_ which has the following
commands:
{code:java}
kudu cluster rebalance
kudu cluster ksck
{code}
The exact stack trace (from kudu 1.10):
F0111 03:11:14.265851 101976 map-util.h:410] Check failed:
InsertIfNotPresent(collection, key, data) duplicate key:
98eea16246634b11bea207c6f397daa4
*** Check failure stack trace: ***
@ 0x10d392d google::LogMessage::Fail()
@ 0x10d5883 google::LogMessage::SendToLog()
@ 0x10d3489 google::LogMessage::Flush()
@ 0x10d620f google::LogMessageFatal::~LogMessageFatal()
@ 0xc94216 InsertOrDie<>()
@ 0xc8d59b kudu::tools::Ksck::CheckMasterConsensus()
@ 0xc90583 kudu::tools::Ksck::Run()
@ 0xc9100a kudu::tools::Ksck::RunAndPrintResults()
@ 0xb44981 kudu::tools::(anonymous namespace)::RunKsck()
@ 0xb46cb4 std::_Function_handler<>::_M_invoke()
@ 0x1129ac2 kudu::tools::Action::Run()
@ 0xbcc027 kudu::tools::DispatchCommand()
@ 0xbcc9eb kudu::tools::RunTool()
@ 0xae595d main
@ 0x7fd165440505 __libc_start_main
@ 0xb40ea1 (unknown)
> Validate List of Masters for kudu ksck
> --------------------------------------
>
> Key: KUDU-3226
> URL: https://issues.apache.org/jira/browse/KUDU-3226
> Project: Kudu
> Issue Type: Improvement
> Reporter: David Mollitor
> Assignee: Abhishek
> Priority: Minor
> Labels: beginner, newbie, trivial
>
> I recently accidentally included a list of masters where I fat-fingered the
> host names and included the same node twice.
> I got some stack trace and an error message about duplicate keys inserted
> into a map. I eventually figured out what I did wrong, but the error
> condition was not super helpful.
> Please add an early validation step that explicitly captures this conditions
> and provides a helpful error message that includes the name of the host name
> which was duplicated on the command line.
> This happened for me with {{kudu ksck}} but there may be other candidates as
> well.
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