reduced log chattiness - changed level of log0 messages

[dannyzaken]

Signed-off-by: Danny Zaken dannyzaken@gmail.com

Explain the changes

1. fixed several error\warn messages that were printed with dbg.log0 level
2. part of an effort to support reduced log chattiness by reducing log level to warn\err only
3. for some repeating messages increased the log level to log1

Issues: Fixed #xxx / Gap #xxx

Testing Instructions:

• Doc added/updated
• Tests added

[liranmauda]

LGTM,
In General this is a good practice, even when the logs are only printed in a catch of an error, printing them in dbg0 will cause it to be ignored in the case where we set the debug level to warn in the config map

noobaa-core/src/util/debug_config.js

Lines 27 to 31 in 069e2f6

	const warn = {
	level: -1,
	core: ['core'],
	endpoint: ['core'],
	};

[romayalon]

@dannyzaken @liranmauda
There are several log messages that I specifically was asked to keep as log0 and not as an error/warning.
maybe we should decide on well-defined rules for it.

[dannyzaken]

@dannyzaken @liranmauda There are several log messages that I specifically was asked to keep as log0 and not an error/warning. maybe we should decide on well-defined rules for it.

@romayalon what is the reason to keep it in log0?

[romayalon]

@guymguym can you please share your logging methodology?