December 2009 - logback-dev

[JIRA] Created: (LBCLASSIC-101) Problem with logback OSGi bundles
by Ceki Gulcu (JIRA) 03 Dec '09

03 Dec '09

Problem with logback OSGi bundles --------------------------------- Key: LBCLASSIC-101 URL: http://jira.qos.ch/browse/LBCLASSIC-101 Project: logback-classic Issue Type: Bug Affects Versions: 0.9.14 Reporter: Ceki Gulcu Assignee: Logback dev list Priority: Critical http://www.slf4j.org/pipermail/user/2009-January/000661.html http://www.slf4j.org/pipermail/user/2009-January/000663.html -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.qos.ch/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

2 3

branch, master, updated. 6bf6cb246a697364bdeef756663f42593ed4b290
by git-noreply＠pixie.qos.ch 03 Dec '09

03 Dec '09

The branch, master has been updated via 6bf6cb246a697364bdeef756663f42593ed4b290 (commit) from 5f017a3925a5262e25c522011348174421cfd3bb (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=6bf6cb246a697364bdeef756… http://github.com/ceki/logback/commit/6bf6cb246a697364bdeef756663f42593ed4b… commit 6bf6cb246a697364bdeef756663f42593ed4b290 Author: Ceki Gulcu <ceki(a)qos.ch> Date: Thu Dec 3 18:25:35 2009 +0100 minor change diff --git a/logback-classic/src/test/input/turbo/scan_perf.xml b/logback-classic/src/test/input/turbo/scan_perf.xml index 7ef7c83..a5bc569 100644 --- a/logback-classic/src/test/input/turbo/scan_perf.xml +++ b/logback-classic/src/test/input/turbo/scan_perf.xml @@ -4,7 +4,7 @@ <configuration scan="true" scanPeriod="50 millisecond"> <appender name="FILE" class="ch.qos.logback.core.FileAppender"> - <File>testFile.log</File> + <File>target/test-output/testFile.log</File> <Append>true</Append> <layout class="ch.qos.logback.classic.PatternLayout"> ----------------------------------------------------------------------- Summary of changes: logback-classic/src/test/input/turbo/scan_perf.xml | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

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branch, master, updated. 5f017a3925a5262e25c522011348174421cfd3bb
by git-noreply＠pixie.qos.ch 03 Dec '09

03 Dec '09

The branch, master has been updated via 5f017a3925a5262e25c522011348174421cfd3bb (commit) from 5f3d8faef0e61cd653ba30d2fa20c3bd7d0ba5ed (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=5f017a3925a5262e25c52201… http://github.com/ceki/logback/commit/5f017a3925a5262e25c522011348174421cfd… commit 5f017a3925a5262e25c522011348174421cfd3bb Author: Ceki Gulcu <ceki(a)qos.ch> Date: Thu Dec 3 18:07:14 2009 +0100 final touches on the LBCLASSIC-154 fix diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java index fe36372..cd04f93 100644 --- a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java +++ b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java @@ -26,6 +26,7 @@ import ch.qos.logback.classic.joran.JoranConfigurator; import ch.qos.logback.core.CoreConstants; import ch.qos.logback.core.joran.spi.JoranException; import ch.qos.logback.core.spi.FilterReply; +import ch.qos.logback.core.status.InfoStatus; /** * Reconfigure a LoggerContext when the configuration file changes. @@ -170,6 +171,8 @@ public class ReconfigureOnChangeFilter extends TurboFilter { } catch (JoranException e) { addError("Failure during reconfiguration", e); } + lc.getStatusManager().add( + new InfoStatus("done resetting the logging context", this)); } } } diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java index e4165b9..4538c89 100644 --- a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java +++ b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java @@ -34,7 +34,7 @@ import ch.qos.logback.core.status.InfoStatus; import ch.qos.logback.core.testUtil.Env; public class ReconfigurePerf { - final static int THREAD_COUNT = 5; + final static int THREAD_COUNT = 50; final static int LOOP_LEN = 1000 * 1000; // the space in the file name mandated by diff --git a/logback-site/src/site/pages/news.html b/logback-site/src/site/pages/news.html index c5cb13d..ec8a6ab 100644 --- a/logback-site/src/site/pages/news.html +++ b/logback-site/src/site/pages/news.html @@ -94,6 +94,12 @@ href="http://jira.qos.ch/browse/LBCLASSIC-102">LBCLASSIC-102</a> and as reported by Joern Huxhorn.</p> + <p>Fixed deadlock issue observed with appender which invoke + loggers as reported in <a + href="http://jira.qos.ch/browse/LBCLASSIC-154">LBCLASSIC-154</a> + by Andrew Perrine and debugged by Ralph Goers who also proposed + the relevant patch.</p> + <hr width="80%" align="center" /> <h3>9th of August 2009 - Release of version 0.9.17</h3> ----------------------------------------------------------------------- Summary of changes: .../classic/turbo/ReconfigureOnChangeFilter.java | 3 +++ .../qos/logback/classic/turbo/ReconfigurePerf.java | 2 +- logback-site/src/site/pages/news.html | 6 ++++++ 3 files changed, 10 insertions(+), 1 deletions(-) hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

1 0

branch, master, updated. 5f3d8faef0e61cd653ba30d2fa20c3bd7d0ba5ed
by git-noreply＠pixie.qos.ch 03 Dec '09

03 Dec '09

The branch, master has been updated via 5f3d8faef0e61cd653ba30d2fa20c3bd7d0ba5ed (commit) from 3f49ee7c4b0e444dc6748509442a1ea1e6f4c5e5 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=5f3d8faef0e61cd653ba30d2… http://github.com/ceki/logback/commit/5f3d8faef0e61cd653ba30d2fa20c3bd7d0ba… commit 5f3d8faef0e61cd653ba30d2fa20c3bd7d0ba5ed Author: Ceki Gulcu <ceki(a)qos.ch> Date: Thu Dec 3 18:05:45 2009 +0100 require slf4j v 1.5.10 diff --git a/pom.xml b/pom.xml index ba7281a..256b50d 100755 --- a/pom.xml +++ b/pom.xml @@ -37,7 +37,7 @@ <properties>  - <slf4j.version>1.5.9.RC1</slf4j.version> + <slf4j.version>1.5.10</slf4j.version> <consolePlugin.version>1.1.0</consolePlugin.version> </properties> ----------------------------------------------------------------------- Summary of changes: pom.xml | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

1 0

[JIRA] Created: (LBCLASSIC-153) Excessive synchronization in ReconfigureOnChangeFilter.decide
by Anders Wallgren (JIRA) 03 Dec '09

03 Dec '09

Excessive synchronization in ReconfigureOnChangeFilter.decide ------------------------------------------------------------- Key: LBCLASSIC-153 URL: http://jira.qos.ch/browse/LBCLASSIC-153 Project: logback-classic Issue Type: Bug Affects Versions: 0.917 Reporter: Anders Wallgren Assignee: Logback dev list The synchronization in ReconfigureOnChangeFilter.decide hurts scalability. It seems unnecessary to serialize the code in changeDetected -- it should be possible to use atomic updates of nextCheck and lastModified and only serialize the actual reconfiguration. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.qos.ch/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

3 9

[JIRA] Created: (LBCLASSIC-154) All threads become blocked in ReconfigureOnChangeFilter when changing log level under load
by Andrew Perrine (JIRA) 03 Dec '09

03 Dec '09

All threads become blocked in ReconfigureOnChangeFilter when changing log level under load ------------------------------------------------------------------------------------------ Key: LBCLASSIC-154 URL: http://jira.qos.ch/browse/LBCLASSIC-154 Project: logback-classic Issue Type: Bug Affects Versions: 0.917 Environment: Linux metro2a.star.dev.diginsite.com 2.6.18-128.1.1.el5 #1 SMP Mon Jan 26 13:58:24 EST 2009 x86_64 x86_64 x86_64 GNU/Linux Java(TM) SE Runtime Environment (build 1.6.0_11-b03) Java HotSpot(TM) 64-Bit Server VM (build 11.0-b16, mixed mode) Reporter: Andrew Perrine Assignee: Logback dev list We were testing logback's new <configuration scan="true"> feature and when we changed the logging level while our application was under load, all threads became blocked inside logback (full stack trace is very long, here are two examples): "http-0.0.0.0-8080-148" daemon prio=10 tid=0x00002aab58679800 nid=0x26ed waiting for monitor entry [0x000000004e617000..0x000000004e618c10] java.lang.Thread.State: BLOCKED (on object monitor) at ch.qos.logback.classic.turbo.ReconfigureOnChangeFilter.decide(ReconfigureOnChangeFilter.java:99) - waiting to lock <0x00002aaabd743d58> (a ch.qos.logback.classic.LoggerContext) at ch.qos.logback.classic.spi.TurboFilterList.getTurboFilterChainDecision(TurboFilterList.java:47) at ch.qos.logback.classic.LoggerContext.getTurboFilterChainDecision_0_3OrMore(LoggerContext.java:251) at ch.qos.logback.classic.Logger.callTurboFilters(Logger.java:770) at ch.qos.logback.classic.Logger.isDebugEnabled(Logger.java:488) at ch.qos.logback.classic.Logger.isDebugEnabled(Logger.java:484) at org.slf4j.ext.LoggerWrapper.debug(LoggerWrapper.java:238) at com.diginsite.product.ofx.presentation.CustomRequestWrapper.addCNtoOFXRequest(OFXFilter.java:191) at com.diginsite.product.ofx.presentation.CustomRequestWrapper.<init>(OFXFilter.java:153) at com.diginsite.product.ofx.presentation.OFXFilter.doFilter(OFXFilter.java:56) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.hyperic.hq.product.servlet.filter.JMXFilter.doFilter(JMXFilter.java:324) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619) "http-0.0.0.0-8080-15" daemon prio=10 tid=0x00002aab600b0400 nid=0x5669 waiting on condition [0x0000000046799000..0x000000004679ac10] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00002aaabd755128> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:747) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:877) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1197) at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:594) at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57) at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:271) at ch.qos.logback.classic.Logger.callAppenders(Logger.java:258) at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:440) at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:394) at ch.qos.logback.classic.Logger.log(Logger.java:813) at org.slf4j.ext.EventLogger.logEvent(EventLogger.java:36) at com.diginsite.services.logging.LoggerUtil.logEvent(LoggerUtil.java:29) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.qos.ch/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

4 14

branch, master, updated. 3f49ee7c4b0e444dc6748509442a1ea1e6f4c5e5
by git-noreply＠pixie.qos.ch 03 Dec '09

03 Dec '09

The branch, master has been updated via 3f49ee7c4b0e444dc6748509442a1ea1e6f4c5e5 (commit) from 6c5ba501831d19879e6865f795a1c294ad25bf7d (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=3f49ee7c4b0e444dc6748509… http://github.com/ceki/logback/commit/3f49ee7c4b0e444dc6748509442a1ea1e6f4c… commit 3f49ee7c4b0e444dc6748509442a1ea1e6f4c5e5 Author: Ceki Gulcu <ceki(a)qos.ch> Date: Thu Dec 3 16:17:14 2009 +0100 - ongoing work on LBCLASSIC-154 and LBCLASSIC-153 diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java index af5bc6a..fe36372 100644 --- a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java +++ b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java @@ -47,7 +47,9 @@ public class ReconfigureOnChangeFilter extends TurboFilter { long refreshPeriod = DEFAULT_REFRESH_PERIOD; File fileToScan; protected long nextCheck; - long lastModified; + volatile long lastModified; + + Object lock = new Object(); @Override public void start() { @@ -56,7 +58,7 @@ public class ReconfigureOnChangeFilter extends TurboFilter { if (url != null) { fileToScan = convertToFile(url); if (fileToScan != null) { - synchronized (context.getConfigurationLock()) { + synchronized (lock) { long inSeconds = refreshPeriod / 1000; addInfo("Will scan for changes in file [" + fileToScan + "] every " + inSeconds + " seconds. "); @@ -102,27 +104,35 @@ public class ReconfigureOnChangeFilter extends TurboFilter { return FilterReply.NEUTRAL; } - synchronized (context.getConfigurationLock()) { + synchronized (lock) { boolean changed = changeDetected(); if (changed) { - addInfo("Detected change in [" + fileToScan + "]"); - addInfo("Resetting and reconfiguring context [" + context.getName() - + "]"); - reconfigure(); + detachReconfigurationToNewThread(); + } } + return FilterReply.NEUTRAL; } + // by detaching reconfiguration to a new thread, we release the various + // locks held by the current thread, in particular, the AppenderAttachable + // reader lock. + private void detachReconfigurationToNewThread() { + // Even though this method resets the loggerContext, which clears the + // list of turbo filters including this instance, it is still possible + // for this instance to be subsequently invoked by another thread if it + // was already executing when the context was reset. + disableSubsequentRecofiguration(); + addInfo("Detected change in [" + fileToScan + "]"); + addInfo("Resetting and reconfiguring context [" + context.getName() + "]"); + new ReconfiguringThread().start(); + } + void updateNextCheck(long now) { nextCheck = now + refreshPeriod; } -// String stem() { -// return currentThreadName() + ", context " + context.getName() -// + ", nextCheck=" + (nextCheck - INIT); -// } - // This method is synchronized to prevent near-simultaneous re-configurations protected boolean changeDetected() { long now = System.currentTimeMillis(); @@ -141,25 +151,6 @@ public class ReconfigureOnChangeFilter extends TurboFilter { lastModified = SENTINEL; } - protected void reconfigure() { - // Even though this method resets the loggerContext, which clears the list - // of turbo filters including this instance, it is still possible for this - // instance to be subsequently invoked by another thread if it was already - // executing when the context was reset. - // We prevent multiple reconfigurations (for the same file change event) by - // setting an appropriate sentinel value for lastMofidied field. - disableSubsequentRecofiguration(); - JoranConfigurator jc = new JoranConfigurator(); - jc.setContext(context); - LoggerContext lc = (LoggerContext) context; - lc.reset(); - try { - jc.doConfigure(fileToScan); - } catch (JoranException e) { - addError("Failure during reconfiguration", e); - } - } - public long getRefreshPeriod() { return refreshPeriod; } @@ -167,4 +158,18 @@ public class ReconfigureOnChangeFilter extends TurboFilter { public void setRefreshPeriod(long refreshPeriod) { this.refreshPeriod = refreshPeriod; } + + class ReconfiguringThread extends Thread { + public void run() { + JoranConfigurator jc = new JoranConfigurator(); + jc.setContext(context); + LoggerContext lc = (LoggerContext) context; + lc.reset(); + try { + jc.doConfigure(fileToScan); + } catch (JoranException e) { + addError("Failure during reconfiguration", e); + } + } + } } diff --git a/logback-classic/src/test/input/turbo/scan 1.xml b/logback-classic/src/test/input/turbo/scan 1.xml index dc3d0fe..39878d3 100644 --- a/logback-classic/src/test/input/turbo/scan 1.xml +++ b/logback-classic/src/test/input/turbo/scan 1.xml @@ -2,6 +2,9 @@ <!DOCTYPE configuration> <configuration scan="true" scanPeriod="50 millisecond"> - <root level="ERROR"/> + + <root level="ERROR"> + </root> + </configuration> \ No newline at end of file diff --git a/logback-classic/src/test/input/turbo/scan_lbclassic154.xml b/logback-classic/src/test/input/turbo/scan_lbclassic154.xml new file mode 100644 index 0000000..7997d8a --- /dev/null +++ b/logback-classic/src/test/input/turbo/scan_lbclassic154.xml @@ -0,0 +1,19 @@ +<?xml version="1.0" encoding="UTF-8" ?> +<!DOCTYPE configuration> + +<configuration scan="true" scanPeriod="50 millisecond"> + + <appender name="default" class="ch.qos.logback.classic.issue.lbclassic154.LoggingAppender"> + <layout class="ch.qos.logback.classic.PatternLayout"> + <pattern>%msg%n"</pattern> + </layout> + </appender> + + <logger name="Ignore" level="ERROR" additivity="false"/> + + <root level="INFO"> + <appender-ref ref="default"/> + </root> + +</configuration> + \ No newline at end of file diff --git a/logback-classic/src/test/input/turbo/scan_perf.xml b/logback-classic/src/test/input/turbo/scan_perf.xml new file mode 100644 index 0000000..7ef7c83 --- /dev/null +++ b/logback-classic/src/test/input/turbo/scan_perf.xml @@ -0,0 +1,21 @@ +<?xml version="1.0" encoding="UTF-8" ?> +<!DOCTYPE configuration> + +<configuration scan="true" scanPeriod="50 millisecond"> + + <appender name="FILE" class="ch.qos.logback.core.FileAppender"> + <File>testFile.log</File> + <Append>true</Append> + + <layout class="ch.qos.logback.classic.PatternLayout"> + <Pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</Pattern> + </layout> + </appender> + + + <root level="DEBUG"> + <appender-ref ref="FILE"/> + </root> + +</configuration> + \ No newline at end of file diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/issue/lbclassic154/LoggingAppender.java b/logback-classic/src/test/java/ch/qos/logback/classic/issue/lbclassic154/LoggingAppender.java new file mode 100644 index 0000000..a95b2b5 --- /dev/null +++ b/logback-classic/src/test/java/ch/qos/logback/classic/issue/lbclassic154/LoggingAppender.java @@ -0,0 +1,41 @@ +/** + * Logback: the reliable, generic, fast and flexible logging framework. + * Copyright (C) 1999-2009, QOS.ch. All rights reserved. + * + * This program and the accompanying materials are dual-licensed under + * either the terms of the Eclipse Public License v1.0 as published by + * the Eclipse Foundation + * + * or (per the licensee's choosing) + * + * under the terms of the GNU Lesser General Public License version 2.1 + * as published by the Free Software Foundation. + */ +package ch.qos.logback.classic.issue.lbclassic154; + +import org.slf4j.Logger; + +import ch.qos.logback.classic.LoggerContext; +import ch.qos.logback.classic.spi.ILoggingEvent; +import ch.qos.logback.core.AppenderBase; + +/** + * + * An appender which calls logback recursively + * + * @author Ralph Goers + */ + +public class LoggingAppender extends AppenderBase<ILoggingEvent> { + + Logger logger; + + public void start() { + super.start(); + logger = ((LoggerContext) getContext()).getLogger("Ignore"); + } + + protected void append(ILoggingEvent eventObject) { + logger.debug("Ignore this"); + } +} diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java index 6c6f52f..6c21e35 100644 --- a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java +++ b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java @@ -38,6 +38,7 @@ import ch.qos.logback.core.joran.spi.JoranException; import ch.qos.logback.core.status.InfoStatus; import ch.qos.logback.core.status.StatusChecker; import ch.qos.logback.core.testUtil.Env; +import ch.qos.logback.core.util.StatusPrinter; public class ReconfigureOnChangeTest { final static int THREAD_COUNT = 5; @@ -48,10 +49,13 @@ public class ReconfigureOnChangeTest { final static String SCAN1_FILE_AS_STR = TeztConstants.TEST_DIR_PREFIX + "input/turbo/scan 1.xml"; + final static String SCAN_LBCLASSIC_154_FILE_AS_STR = TeztConstants.TEST_DIR_PREFIX + + "input/turbo/scan_lbclassic154.xml"; + // it actually takes time for Windows to propagate file modification changes - // values below 100 milliseconds can be problematic - // the same propagation latency occurs in Linux but is even larger (>600 ms) - final static int DEFAULT_SLEEP_BETWEEN_UPDATES = 250; + // values below 100 milliseconds can be problematic the same propagation + // latency occurs in Linux but is even larger (>600 ms) + final static int DEFAULT_SLEEP_BETWEEN_UPDATES = 110; int sleepBetweenUpdates = DEFAULT_SLEEP_BETWEEN_UPDATES; @@ -113,8 +117,25 @@ public class ReconfigureOnChangeTest { verify(expectedRreconfigurations); } + // check for deadlocks + @Test(timeout = 20000) + public void scan_lbclassic154() throws JoranException, IOException, + InterruptedException { + File file = new File(SCAN_LBCLASSIC_154_FILE_AS_STR); + configure(file); + RunnableWithCounterAndDone[] runnableArray = buildRunnableArray(file); + harness.execute(runnableArray); + + loggerContext.getStatusManager().add( + new InfoStatus("end of execution ", this)); + + long expectedRreconfigurations = runnableArray[0].getCounter(); + verify(expectedRreconfigurations); + } + void verify(long expectedRreconfigurations) { StatusChecker checker = new StatusChecker(loggerContext); + StatusPrinter.print(loggerContext); assertTrue(checker.isErrorFree()); int effectiveResets = checker .matchCount("Resetting and reconfiguring context"); diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java new file mode 100644 index 0000000..e4165b9 --- /dev/null +++ b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java @@ -0,0 +1,126 @@ +/** + * Logback: the reliable, generic, fast and flexible logging framework. + * Copyright (C) 1999-2009, QOS.ch. All rights reserved. + * + * This program and the accompanying materials are dual-licensed under + * either the terms of the Eclipse Public License v1.0 as published by + * the Eclipse Foundation + * + * or (per the licensee's choosing) + * + * under the terms of the GNU Lesser General Public License version 2.1 + * as published by the Free Software Foundation. + */ +package ch.qos.logback.classic.turbo; + +import java.io.File; +import java.io.IOException; +import java.net.MalformedURLException; + +import org.junit.Before; +import org.junit.Test; + +import ch.qos.logback.classic.Level; +import ch.qos.logback.classic.Logger; +import ch.qos.logback.classic.LoggerContext; +import ch.qos.logback.classic.issue.lbclassic135.LoggingRunnable; +import ch.qos.logback.classic.joran.JoranConfigurator; +import ch.qos.logback.classic.util.TeztConstants; +import ch.qos.logback.core.CoreConstants; +import ch.qos.logback.core.contention.MultiThreadedHarness; +import ch.qos.logback.core.contention.RunnableWithCounterAndDone; +import ch.qos.logback.core.joran.spi.JoranException; +import ch.qos.logback.core.status.InfoStatus; +import ch.qos.logback.core.testUtil.Env; + +public class ReconfigurePerf { + final static int THREAD_COUNT = 5; + final static int LOOP_LEN = 1000 * 1000; + + // the space in the file name mandated by + // http://jira.qos.ch/browse/LBCORE-119 + final static String CONF_FILE_AS_STR = TeztConstants.TEST_DIR_PREFIX + + "input/turbo/scan_perf.xml"; + + // it actually takes time for Windows to propagate file modification changes + // values below 100 milliseconds can be problematic the same propagation + // latency occurs in Linux but is even larger (>600 ms) + final static int DEFAULT_SLEEP_BETWEEN_UPDATES = 110; + + int sleepBetweenUpdates = DEFAULT_SLEEP_BETWEEN_UPDATES; + + static int totalTestDuration; + + LoggerContext loggerContext = new LoggerContext(); + Logger logger = loggerContext.getLogger(this.getClass()); + MultiThreadedHarness harness; + + @Before + public void setUp() { + // take into account propagation latency occurs on Linux + if (Env.isLinux()) { + sleepBetweenUpdates = 850; + totalTestDuration = sleepBetweenUpdates * 5; + } else { + totalTestDuration = sleepBetweenUpdates * 10; + } + harness = new MultiThreadedHarness(totalTestDuration); + } + + void configure(File file) throws JoranException { + JoranConfigurator jc = new JoranConfigurator(); + jc.setContext(loggerContext); + jc.doConfigure(file); + } + + RunnableWithCounterAndDone[] buildRunnableArray() { + RunnableWithCounterAndDone[] rArray = new RunnableWithCounterAndDone[THREAD_COUNT]; + for (int i = 0; i < THREAD_COUNT; i++) { + rArray[i] = new LoggingRunnable(logger); + } + return rArray; + } + + // Tests whether ConfigurationAction is installing ReconfigureOnChangeFilter + @Test + public void scan1() throws JoranException, IOException, InterruptedException { + File file = new File(CONF_FILE_AS_STR); + configure(file); + doRun(); + doRun(); + doRun(); + System.out.println("ENTER :"); + System.in.read(); + doRun(); + } + + void doRun() throws InterruptedException { + RunnableWithCounterAndDone[] runnableArray = buildRunnableArray(); + harness.execute(runnableArray); + } + + ReconfigureOnChangeFilter initROCF() throws MalformedURLException { + ReconfigureOnChangeFilter rocf = new ReconfigureOnChangeFilter(); + rocf.setContext(loggerContext); + File file = new File(CONF_FILE_AS_STR); + loggerContext.putObject(CoreConstants.URL_OF_LAST_CONFIGURATION_VIA_JORAN, + file.toURI().toURL()); + rocf.start(); + return rocf; + } + + + public double directLoop(ReconfigureOnChangeFilter rocf) { + long start = System.nanoTime(); + for (int i = 0; i < LOOP_LEN; i++) { + rocf.decide(null, logger, Level.DEBUG, " ", null, null); + } + long end = System.nanoTime(); + return (end - start) / (1.0d * LOOP_LEN); + } + + void addInfo(String msg, Object o) { + loggerContext.getStatusManager().add(new InfoStatus(msg, o)); + } + +} ----------------------------------------------------------------------- Summary of changes: .../classic/turbo/ReconfigureOnChangeFilter.java | 67 ++++++----- logback-classic/src/test/input/turbo/scan 1.xml | 5 +- .../src/test/input/turbo/scan_lbclassic154.xml | 19 +++ logback-classic/src/test/input/turbo/scan_perf.xml | 21 ++++ .../issue/lbclassic154/LoggingAppender.java | 32 +++--- .../classic/turbo/ReconfigureOnChangeTest.java | 27 ++++- .../qos/logback/classic/turbo/ReconfigurePerf.java | 126 ++++++++++++++++++++ 7 files changed, 247 insertions(+), 50 deletions(-) create mode 100644 logback-classic/src/test/input/turbo/scan_lbclassic154.xml create mode 100644 logback-classic/src/test/input/turbo/scan_perf.xml copy logback-examples/src/main/java/chapter11/TrivialLogbackAppender.java => logback-classic/src/test/java/ch/qos/logback/classic/issue/lbclassic154/LoggingAppender.java (55%) create mode 100644 logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigurePerf.java hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

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branch, master, updated. 8ef964606da95d04e7ee0297cc25ffca661d265f
by git-noreply＠pixie.qos.ch 02 Dec '09

02 Dec '09

The branch, master has been updated via 8ef964606da95d04e7ee0297cc25ffca661d265f (commit) from 742e903cdbc5ebe7470f4e8f32fa8ac03bce0b6a (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=8ef964606da95d04e7ee0297… http://github.com/ceki/logback/commit/8ef964606da95d04e7ee0297cc25ffca661d2… commit 8ef964606da95d04e7ee0297cc25ffca661d265f Author: Ceki Gulcu <ceki(a)qos.ch> Date: Wed Dec 2 23:59:11 2009 +0100 cosmetic change in relation to context synchronization diff --git a/logback-access/src/main/java/ch/qos/logback/access/tomcat/LogbackValve.java b/logback-access/src/main/java/ch/qos/logback/access/tomcat/LogbackValve.java index 9f14412..95347d2 100644 --- a/logback-access/src/main/java/ch/qos/logback/access/tomcat/LogbackValve.java +++ b/logback-access/src/main/java/ch/qos/logback/access/tomcat/LogbackValve.java @@ -67,6 +67,7 @@ public class LogbackValve extends ValveBase implements Lifecycle, Context, + "logback-access.xml"; private long birthTime = System.currentTimeMillis(); + Object configurationLock = new Object(); // Attributes from ContextBase: @@ -268,6 +269,10 @@ public class LogbackValve extends ValveBase implements Lifecycle, Context, public long getBithTime() { return birthTime; } + + public Object getConfigurationLock() { + return configurationLock; + } // ====== Methods from catalina Lifecycle ===== @@ -283,6 +288,4 @@ public class LogbackValve extends ValveBase implements Lifecycle, Context, // dummy NOP implementation } - - } diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/LoggerContext.java b/logback-classic/src/main/java/ch/qos/logback/classic/LoggerContext.java index 1fdbaeb..36ed7af 100644 --- a/logback-classic/src/main/java/ch/qos/logback/classic/LoggerContext.java +++ b/logback-classic/src/main/java/ch/qos/logback/classic/LoggerContext.java @@ -68,7 +68,7 @@ public class LoggerContext extends ContextBase implements ILoggerFactory, boolean started = false; int resetCount = 0; - + public LoggerContext() { super(); this.loggerCache = new Hashtable<String, Logger>(); @@ -170,7 +170,7 @@ public class LoggerContext extends ContextBase implements ILoggerFactory, * reference, otherwise returns <code>null</code>. * * @param name - * the name of the logger to search for. + * the name of the logger to search for. */ public Logger exists(String name) { return (Logger) loggerCache.get(name); diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java index 4bc1f33..ce82a6f 100644 --- a/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java +++ b/logback-classic/src/main/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.java @@ -56,7 +56,7 @@ public class ReconfigureOnChangeFilter extends TurboFilter { if (url != null) { fileToScan = convertToFile(url); if (fileToScan != null) { - synchronized (context) { + synchronized (context.getConfigurationLock()) { long inSeconds = refreshPeriod / 1000; addInfo("Will scan for changes in file [" + fileToScan + "] every " + inSeconds + " seconds. "); @@ -102,7 +102,7 @@ public class ReconfigureOnChangeFilter extends TurboFilter { return FilterReply.NEUTRAL; } - synchronized (context) { + synchronized (context.getConfigurationLock()) { boolean changed = changeDetected(); if (changed) { addInfo("Detected change in [" + fileToScan + "]"); diff --git a/logback-core/src/main/java/ch/qos/logback/core/Context.java b/logback-core/src/main/java/ch/qos/logback/core/Context.java index 039c2f9..863896f 100644 --- a/logback-core/src/main/java/ch/qos/logback/core/Context.java +++ b/logback-core/src/main/java/ch/qos/logback/core/Context.java @@ -86,4 +86,11 @@ public interface Context extends PropertyContainer { * @return The time as measured when this class was created. */ public long getBithTime(); + + /** + * Object used for synchronization purposes. + * INTENDED FOR INTERNAL USAGE. + */ + public Object getConfigurationLock(); + } diff --git a/logback-core/src/main/java/ch/qos/logback/core/ContextBase.java b/logback-core/src/main/java/ch/qos/logback/core/ContextBase.java index 41ac456..5e2fd6e 100644 --- a/logback-core/src/main/java/ch/qos/logback/core/ContextBase.java +++ b/logback-core/src/main/java/ch/qos/logback/core/ContextBase.java @@ -30,6 +30,8 @@ public class ContextBase implements Context { Map<String, String> propertyMap = new HashMap<String, String>(); Map<String, Object> objectMap = new HashMap<String, Object>(); + Object configurationLock = new Object(); + public StatusManager getStatusManager() { return sm; } @@ -108,4 +110,8 @@ public class ContextBase implements Context { public long getBithTime() { return birthTime; } + + public Object getConfigurationLock() { + return configurationLock; + } } diff --git a/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java b/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java index 2346adf..80a83cc 100644 --- a/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java +++ b/logback-core/src/main/java/ch/qos/logback/core/joran/GenericConfigurator.java @@ -122,7 +122,7 @@ public abstract class GenericConfigurator extends ContextAwareBase { recorder.recordEvents(inputSource); buildInterpreter(); // disallow simultaneous configurations of the same context - synchronized (context) { + synchronized (context.getConfigurationLock()) { interpreter.play(recorder.saxEventList); } } ----------------------------------------------------------------------- Summary of changes: .../ch/qos/logback/access/tomcat/LogbackValve.java | 7 +++++-- .../java/ch/qos/logback/classic/LoggerContext.java | 4 ++-- .../classic/turbo/ReconfigureOnChangeFilter.java | 4 ++-- .../src/main/java/ch/qos/logback/core/Context.java | 7 +++++++ .../main/java/ch/qos/logback/core/ContextBase.java | 6 ++++++ .../logback/core/joran/GenericConfigurator.java | 2 +- 6 files changed, 23 insertions(+), 7 deletions(-) hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

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branch, master, updated. 742e903cdbc5ebe7470f4e8f32fa8ac03bce0b6a
by git-noreply＠pixie.qos.ch 02 Dec '09

02 Dec '09

The branch, master has been updated via 742e903cdbc5ebe7470f4e8f32fa8ac03bce0b6a (commit) from df94eb13158d50083add57207aeda455983b42b9 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=742e903cdbc5ebe7470f4e8f… http://github.com/ceki/logback/commit/742e903cdbc5ebe7470f4e8f32fa8ac03bce0… commit 742e903cdbc5ebe7470f4e8f32fa8ac03bce0b6a Author: Ceki Gulcu <ceki(a)rhino.localdomain> Date: Wed Dec 2 17:28:07 2009 -0500 let the green mail server get a head start diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/net/SMTPAppender_GreenTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/net/SMTPAppender_GreenTest.java index 83c928e..092f73b 100644 --- a/logback-classic/src/test/java/ch/qos/logback/classic/net/SMTPAppender_GreenTest.java +++ b/logback-classic/src/test/java/ch/qos/logback/classic/net/SMTPAppender_GreenTest.java @@ -66,7 +66,8 @@ public class SMTPAppender_GreenTest { ServerSetup.PROTOCOL_SMTP); greenMail = new GreenMail(serverSetup); greenMail.start(); - Thread.yield(); + // let the grean mail server get a head start + Thread.sleep(100); } @After ----------------------------------------------------------------------- Summary of changes: .../classic/net/SMTPAppender_GreenTest.java | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

1 0

branch, master, updated. df94eb13158d50083add57207aeda455983b42b9
by git-noreply＠pixie.qos.ch 02 Dec '09

02 Dec '09

The branch, master has been updated via df94eb13158d50083add57207aeda455983b42b9 (commit) from 14c0e07767c55dfc29dcbe181e6298d46ce00ca2 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=df94eb13158d50083add5720… http://github.com/ceki/logback/commit/df94eb13158d50083add57207aeda455983b4… commit df94eb13158d50083add57207aeda455983b42b9 Author: Ceki Gulcu <ceki(a)rhino.localdomain> Date: Wed Dec 2 17:25:30 2009 -0500 lowering expectations diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/rolling/TimeBasedRollingWithConfigFileTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/rolling/TimeBasedRollingWithConfigFileTest.java index fe9a0c8..096dda2 100644 --- a/logback-classic/src/test/java/ch/qos/logback/classic/rolling/TimeBasedRollingWithConfigFileTest.java +++ b/logback-classic/src/test/java/ch/qos/logback/classic/rolling/TimeBasedRollingWithConfigFileTest.java @@ -140,7 +140,7 @@ public class TimeBasedRollingWithConfigFileTest extends // match exactly the expected archive files. Thus, we aim for // an approximate match assertTrue("exitenceCount=" + eCount + ", expectedFilenameList.size=" - + expectedFilenameList.size(), eCount >= 5 + + expectedFilenameList.size(), eCount >= 4 && eCount > expectedFilenameList.size() / 2); } diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java index 6d08674..19c74a2 100644 --- a/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java +++ b/logback-classic/src/test/java/ch/qos/logback/classic/turbo/ReconfigureOnChangeTest.java @@ -142,8 +142,7 @@ public class ReconfigureOnChangeTest { public void directPerfTest() throws MalformedURLException { if (Env.isLinux()) { // for some reason this test does not pass on Linux (AMD 64 bit, - // Dual Core - // Opteron 170) + // Dual Core Opteron 170) return; } ----------------------------------------------------------------------- Summary of changes: .../TimeBasedRollingWithConfigFileTest.java | 2 +- .../classic/turbo/ReconfigureOnChangeTest.java | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) hooks/post-receive -- Logback: the generic, reliable, fast and flexible logging framework.

1 0