[ http://jira.qos.ch/browse/LBCLASSIC-104?page=com.atlassian.jira.plugin.syste... ] Ceki Gulcu resolved LBCLASSIC-104. ---------------------------------- Fix Version/s: 0.9.15 Resolution: Fixed Fixes in revision 2128.

strange MDC and SMTPAppender behavior -------------------------------------

Key: LBCLASSIC-104 URL: http://jira.qos.ch/browse/LBCLASSIC-104 Project: logback-classic Issue Type: Bug Affects Versions: 0.9.14 Reporter: Ceki Gulcu Assignee: Ceki Gulcu Fix For: 0.9.15

Original report: http://www.qos.ch/pipermail/logback-user/2009-January/000877.html I'm seeing unexpected behavior when I combine MDC and SMTPAppender. The MDC values appear to be lost for previous log messages when MDC.clear is called before Logger.error triggers the actual email. This does not appear to be a problem with console appender. Below is a test program that will reproduce the problem. A logback.xml that uses an SMTPAppender and a pattern that includes %mdc is required. Is there something I'm missing? Versions: slf4j-api-1.5.6.jar logback-core-0.9.14.jar logback-classic-0.9.14.jar janino-2.5.14.jar mail-1.4.1.jar java version "1.6.0_04" test program: import org.slf4j.Logger; import org.slf4j.MDC; import org.slf4j.LoggerFactory; public class TestMain { public static void main(String[] args) { Logger logger = LoggerFactory.getLogger("TestMain"); // test1... logger.debug("test1: should not have MDC"); MDC.put("key1", "val1"); MDC.put("key2", "val2"); logger.warn("test1: should have MDC(key1=val1,key2=val2) but does not"); MDC.clear(); logger.debug("test1: should not have MDC"); logger.error("test1: error message triggers email"); // test2... logger.debug("test2: should not have MDC"); MDC.put("key1", "val1"); logger.warn("test2: should have MDC(key1=val1)"); MDC.put("key2", "val2"); logger.warn("test2: should have MDC(key1=val1,key2=val2)"); MDC.put("key3", "val3"); logger.warn("test2: should have MDC(key1=val1,key2=val2,key3=val3) but does not"); MDC.clear(); logger.debug("test2: should not have MDC"); logger.error("test2: error message triggers email"); // test3... logger.debug("test3: should not have MDC"); MDC.put("key1", "val1"); logger.warn("test3: should have MDC(key1=val1)"); MDC.put("key2", "val2"); logger.warn("test3: should have MDC(key1=val1,key2=val2)"); MDC.put("key3", "val3"); logger.warn("test3: should have MDC(key1=val1,key2=val2,key3=val3)"); MDC.put("key4", "val4"); logger.warn("test3: should have MDC(key1=val1,key2=val2,key3=val3,key4=val4) but does not"); MDC.clear(); logger.debug("test3: should not have MDC"); logger.error("test3: error message triggers email"); // test4... logger.debug("test4: should not have MDC"); MDC.put("key1", "val1"); logger.warn("test4: should have MDC(key1=val1)"); MDC.put("key2", "val2"); logger.error("test4: error message triggers email and has MDC(key1=val1,key2=val2)"); MDC.clear(); logger.debug("test5: should not have MDC"); MDC.put("key1", "val1"); logger.warn("test5: should have MDC(key1=val1) but does not"); MDC.clear(); logger.debug("test5: should not have MDC"); MDC.put("key1", "val1"); logger.warn("test5: should have MDC(key1=val1)"); logger.error("test5: error message triggers email and should not have MDC"); } }

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