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Improve reasoning of log lines in threaded processes.

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Thorsten Eckel 2018-11-23 13:01:04 +01:00
parent f1dfbafdcd
commit 87b49f402a
1 changed files with 20 additions and 0 deletions
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lib/core_ext/logger/formatter.rb Normal file
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# This customization adds the id of the current Thread to all log lines.
# It was introduced to make it more easy to follow the execution of tasks in the log in threaded processes.
#
# before:
# D, [2018-11-20T16:35:03.483547 #72102] DEBUG -- : (0.5ms) SELECT COUNT(*) FROM "delayed_jobs"
#
# after:
# D, [2018-11-20T16:35:03.483547 #72102-23423534] DEBUG -- : (0.5ms) SELECT COUNT(*) FROM "delayed_jobs"
class Logger
class Formatter
# original: Format = "%s, [%s#%d] %5s -- %s: %s\n".freeze
FORMAT_WITH_THREAD_ID = "%s, [%s#%d-%d] %5s -- %s: %s\n".freeze
def call(severity, time, progname, msg)
format(FORMAT_WITH_THREAD_ID, severity[0..0], format_datetime(time), Process.pid, Thread.current.object_id, severity, progname, msg2str(msg))
end
end
end