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https://issues.apache.org/jira/browse/KUDU-3421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Serbin resolved KUDU-3421.
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Fix Version/s: 1.17.0
Resolution: Fixed
> Make command line error message more useful
> -------------------------------------------
>
> Key: KUDU-3421
> URL: https://issues.apache.org/jira/browse/KUDU-3421
> Project: Kudu
> Issue Type: Improvement
> Components: CLI
> Reporter: Bakai Ádám
> Priority: Major
> Labels: newbie
> Fix For: 1.17.0
>
>
> If the user runs this command for example:
> {code:java}
> /data/9/abakai/kudu/build/debug%
> /data/9/abakai/kudu/build/debug/bin/kudu-tserver
> --fs_data_dirs=/data/9/abakai/kudu/build/debug/tserver-2/data
> --fs_wal_dir=/data/9/abakai/kudu/build/debug/tserver-2/wal
> --log_dir=/data/9/abakai/kudu/build/debug/tserver-2/log
> --rpc_bind_addresses=127.0.0.1:19874 --time_source=system_unsync
> --unlock_unsafe_flags --webserver_interface=127.0.0.1 --webserver_port=19875
> --tserver_master_addrs=127.0.0.1:18764
> --webserver_doc_root=/data/9/abakai/kudu/build/debug/../../www
> --memory_limit_hard_bytes=72050161527 -block_manager log {code}
> it works fine. But if the user adds "-logtostderr true", it will throw an
> error:
> {code:java}
> [abakai@va1022]/data/9/abakai/kudu/build/debug%
> /data/9/abakai/kudu/build/debug/bin/kudu-tserver
> --fs_data_dirs=/data/9/abakai/kudu/build/debug/tserver-2/data
> --fs_wal_dir=/data/9/abakai/kudu/build/debug/tserver-2/wal
> --log_dir=/data/9/abakai/kudu/build/debug/tserver-2/log
> --rpc_bind_addresses=127.0.0.1:19874 --time_source=system_unsync
> --unlock_unsafe_flags --webserver_interface=127.0.0.1 --webserver_port=19875
> --tserver_master_addrs=127.0.0.1:18764
> --webserver_doc_root=/data/9/abakai/kudu/build/debug/../../www
> --memory_limit_hard_bytes=72050161527 -block_manager log -logtostderr true
> usage: /data/9/abakai/kudu/build/debug/bin/kudu-tserver {code}
> Which doesn't really help to identify which command line option is incorrect
> (and maybe how is it incorrect)
> (By the way the problem with the second command is that logtostderr doesn't
> need true or false option, it's existence indicates that logtostderr should
> be switched to true)
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