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From "Michael Kjellman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13317) Default logging we ship will incorrectly print "?:?" for "%F:%L" pattern due to includeCallerData being false by default no appender
Date Thu, 09 Mar 2017 22:31:38 GMT
Michael Kjellman created CASSANDRA-13317:
--------------------------------------------

             Summary: Default logging we ship will incorrectly print "?:?" for "%F:%L" pattern
due to includeCallerData being false by default no appender
                 Key: CASSANDRA-13317
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13317
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Michael Kjellman
            Assignee: Michael Kjellman


We specify the logging pattern as "%-5level [%thread] %date{ISO8601} %F:%L - %msg%n". 

%F:%L is intended to print the Filename:Line Number. For performance reasons logback (like
log4j2) disables tracking line numbers as it requires the entire stack to be materialized
every time.

This causes logs to look like:
WARN  [main] 2017-03-09 13:27:11,272 ?:? - Protocol Version 5/v5-beta not supported by java
driver
INFO  [main] 2017-03-09 13:27:11,813 ?:? - No commitlog files found; skipping replay
INFO  [main] 2017-03-09 13:27:12,477 ?:? - Initialized prepared statement caches with 14 MB
INFO  [main] 2017-03-09 13:27:12,727 ?:? - Initializing system.IndexInfo

When instead you'd expect something like:
INFO  [main] 2017-03-09 13:23:44,204 ColumnFamilyStore.java:419 - Initializing system.available_ranges
INFO  [main] 2017-03-09 13:23:44,210 ColumnFamilyStore.java:419 - Initializing system.transferred_ranges
INFO  [main] 2017-03-09 13:23:44,215 ColumnFamilyStore.java:419 - Initializing system.views_builds_in_progress

The fix is to add "<includeCallerData>true</includeCallerData>" to the appender
config to enable the line number and stack tracing.



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