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<div>Dear Philippe,</div><div><br></div><div>Thanks a lot for your consideration. I solved former problem. While, I faced with a new problem. Indeed, when I create a LTTng session, start it and finally stop LTTng, I could not find trace files in mentioned folder. My java code is </div><div><br></div><div><div>///////////////////////////////////////</div><div><font color="#5b8828">import java.io.IOException;</font></div><div><font color="#5b8828">import java.util.logging.Handler;</font></div><div><font color="#5b8828">import java.util.logging.Logger;</font></div><div><font color="#5b8828"><br></font></div><div><font color="#5b8828">import org.lttng.ust.agent.LTTngAgent;</font></div><div><font color="#5b8828">import org.lttng.ust.agent.jul.LttngLogHandler;</font></div><div><br></div><div><font color="#5b8828">public class Hello {</font></div><div><span style="white-space: pre-wrap;"><font color="#5b8828"> </font></span></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>private static final int answer = 42;</font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>private static LTTngAgent lttngAgent;</font></div><div><font color="#5b8828"><br></font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>public static void main(String[] args) throws InterruptedException {</font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>Logger helloLog = Logger.getLogger("hello");</font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>lttngAgent = LTTngAgent.getLTTngAgent();</font></div><div><font color="#5b8828"><br></font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>Thread.sleep(5000);</font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>helloLog.info("Hello World, the answer is " + answer);</font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>lttngAgent.dispose();</font></div><div><font color="#5b8828"><span style="white-space: pre-wrap;"> </span>}</font></div><div><font color="#5b8828"><br></font></div><div><font color="#5b8828">}</font></div><div>///////////////////////</div><div><br></div><div>Also, I used following LTTng commands. </div><div><br></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;">////////////////////////////////</span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;">lttng create java-test</span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;">lttng enable-event -a -l</span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;">lttng start</span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;"><br></span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;">///Start My java Application///</span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;"><br></span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;">lttng stop</span></div><div>////////////////////////////</div><div><br></div><div>Besides, when I used "lttng view" after stopping LTTng, I received following error message</div><div><br></div><div><div>[error] Cannot open any trace for reading.</div><div>[error] opening trace "/[path]/lttng-traces/java-test10-20171010-130909" for reading.</div><div>[error] none of the specified trace paths could be opened.</div><div><br></div><div>Could you please help me to resolve it.</div><div><br></div><div>Regards,</div><div>Mehdi.</div><br></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;"><br></span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;"><br></span></div><div><span style="font-family: "Andale Mono WT", "Andale Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", "Ubuntu Mono", Monaco, Consolas, "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace; font-size: 12px; white-space: pre-wrap;"><br></span></div><div><br></div><div><br></div><div><br></div><br></div><div><br></div>
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On Monday, October 9, 2017, 1:05:59 AM GMT+3:30, Philippe Proulx <eeppeliteloop@gmail.com> wrote:
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<div><div dir='ltr'><html><body>On Sun, Oct 8, 2017 at 4:15 PM, MMM via lttng-dev<br clear="none"><<a shape="rect" ymailto="mailto:lttng-dev@lists.lttng.org" href="mailto:lttng-dev@lists.lttng.org">lttng-dev@lists.lttng.org</a>> wrote:<br clear="none">> Dear Users,<br clear="none">><br clear="none">> I am beginner in tracing using LTTng. At present, I am going to trace a java<br clear="none">> program in Ubuntu, while I faced with a problem. When I install LTTng on<br clear="none">> Ubuntu, I also install<br clear="none">><br clear="none">> "liblttng-ust-agent-java" by "apt-get install liblttng-ust-agent-java"<br clear="none">> command in Ubuntu. But, when I want to import any libraries related to LTTng<br clear="none">> such as "org.lttng.ust.agent.jul.LttngLogHandlerorg.lttng.ust.LTTngAgent" to<br clear="none">> my program, it is marked as unknown package. Indeed, I could not find LTTng<br clear="none">> Jar file for adding it to my program libraries. Furthermore, I searched in<br clear="none">> all files and folders, while I could not find Jar file. Could you please<br clear="none">> help me to understand the cause of this problem and solve it.<br clear="none"><br clear="none">I'm not a Ubuntu specialist, but from<br clear="none"><<a shape="rect" href="https://packages.ubuntu.com/zesty/all/liblttng-ust-agent-java/filelist" target="_blank">https://packages.ubuntu.com/zesty/all/liblttng-ust-agent-java/filelist</a>>,<br clear="none">I would say:<br clear="none"><br clear="none">* /usr/share/java/lttng-ust-agent-jul.jar<br clear="none">* /usr/share/java/lttng-ust-agent-log4j.jar<br clear="none"><br clear="none">On 16.04, it's:<br clear="none"><br clear="none">* /usr/share/java/liblttng-ust-agent.jar<br clear="none"><br clear="none">Add the required JAR file to your classpath.<br clear="none"><br clear="none">Have a look at <<a shape="rect" href="http://lttng.org/docs/v2.9/#doc-java-application" target="_blank">http://lttng.org/docs/v2.9/#doc-java-application</a>>.<br clear="none"><br clear="none">Phil<div class="yqt0451103275" id="yqtfd62043"><br clear="none"><br clear="none">><br clear="none">><br clear="none">> Best regards,<br clear="none">><br clear="none">> Mehdi.<br clear="none">><br clear="none">><br clear="none">> _______________________________________________<br clear="none">> lttng-dev mailing list<br clear="none">> <a shape="rect" ymailto="mailto:lttng-dev@lists.lttng.org" href="mailto:lttng-dev@lists.lttng.org">lttng-dev@lists.lttng.org</a><br clear="none">> <a shape="rect" href="https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev" target="_blank">https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev</a><br clear="none">><br clear="none"></div></body></html></div></div>
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