Bakai Ádám created KUDU-3421:
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Summary: Make commane 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
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)
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