Added: incubator/brooklyn/site/v/latest/ops/troubleshooting/index.html URL: http://svn.apache.org/viewvc/incubator/brooklyn/site/v/latest/ops/troubleshooting/index.html?rev=1693583&view=auto ============================================================================== --- incubator/brooklyn/site/v/latest/ops/troubleshooting/index.html (added) +++ incubator/brooklyn/site/v/latest/ops/troubleshooting/index.html Fri Jul 31 12:23:59 2015 @@ -0,0 +1,814 @@ +<!-- +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. 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Cloud</a> </li> + +<li> <a href="/v/latest/ops/troubleshooting/softwareprocess.html">Troubleshooting SoftwareProcess Entities</a> </li> + +<li> <a href="/v/latest/ops/troubleshooting/going-deep-in-java-and-logs.html">Troubleshooting: Going Deep in Java and Logs</a> </li> + +</ul></div> + + </div> + + <div class="col-md-3"> + <div class="list-group side-menu" id="side-menu"> + + + + + + + <h4 class=" with_following"> + <a href="/v/latest/index.html" class="list-group-item breadcrumb breadcrumb0"> + User Guide + </a></h4> + + <h4 class=" with_preceding"> + <a href="/v/latest/ops/index.html" class="list-group-item breadcrumb breadcrumb1"> + Operations + </a></h4> + + + + + + <a href="/v/latest/ops/requirements.html" class="list-group-item">Requirements + </a> + + + + + + <a href="/v/latest/ops/install-on-server.html" class="list-group-item">Installing Brooklyn + </a> + + + + + + <a href="/v/latest/ops/launch.html" class="list-group-item">Launching Brooklyn + </a> + + + + + + <a 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href="/v/latest/ops/troubleshooting/connectivity.html" class="list-group-item sub-item " > + Server Connectivity + </a> + + + <a href="/v/latest/ops/troubleshooting/softwareprocess.html" class="list-group-item sub-item " > + SoftwareProcess Entities + </a> + + + <a href="/v/latest/ops/troubleshooting/going-deep-in-java-and-logs.html" class="list-group-item sub-item " > + Going Deep in Java and Logs + </a> + + </div> + + + + + + + +</div> +<div id="width_reference"></div> + + +<script language="JavaScript" type="application/javascript"> + + +sidemenu_x_sizer=function(){ $('#side-menu').width($('#side-menu').parent().find('#width_reference').outerWidth()); }; +$(sidemenu_x_sizer); +$(window).resize(sidemenu_x_sizer); + + +sidemenu_y_nonfloater=function(){ + if ($('#side-menu').outerHeight(true) + $('#header').outerHeight(true) + $('#footer').outerHeight(true) > window.innerHeight || + $('#side-menu').width() >= $('#content_container').width()/2) { + $('#side-menu').css('position', 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Trigger a + // change event on the location object, + // passing in the current and previous + // location values. + $( window.location ).trigger( + "change", + { + currentHref: strLocation, + currentHash: fnCleanHash( strHash ), + previousHref: strPrevLocation, + previousHash: fnCleanHash( strPrevHash ) + } + ); + + } + } + + // Set an interval to check the location changes. + setInterval( fnCheckLocation, intIntervalTime ); + } + )( jQuery ); +// and trigger highlight section on link change +$(window.location).bind("change", highlight_new_section); + +</script> + + </div> + </div> +</div> + +<div id="footer"> + <div class="container"> + <div class="row"> + <div class="col-md-10 text-muted"> + Apache Brooklyn is distributed under the <a href="http://www.apache.org/licenses/LICENSE-2.0";>Apache + License v2.0</a>. + <br /> + Apache Brooklyn is currently undergoing Incubation at The Apache Software + Foundation. + </div> + <div class="col-md-2"> + <a class="btn btn-sm btn-default" href="https://github.com/apache/incubator-brooklyn/edit/master/docs/guide/ops/troubleshooting/index.md";>Edit This Page</a> + <a href="http://0.0.0.0:4000/community/how-to-contribute-docs.html"; + data-toggle="tooltip" data-placement="top" title="How to Edit Documentation" data-delay="400"/> + <span class="octicon octicon-question octicon-footer"></span> + </a> + </div> + </div> + </div> +</div> + + + + + +<script src="//cdnjs.cloudflare.com/ajax/libs/zeroclipboard/1.3.1/ZeroClipboard.min.js"></script> + +<script language="JavaScript" type="application/javascript"> + fix_padding_function = function () { + $('body').css('padding-top', parseInt($('#header').css("height"))+10); + $('body').css('padding-bottom', parseInt($('#footer').css("height"))+10); + }; + $(window).resize(fix_padding_function); + $(window).load(fix_padding_function); + + $(function () { + $('[data-toggle="tooltip"]').tooltip({ delay: { show: 600, hide: 100 }}) + }); + +/* generate anchors for headers, a la github and http://blog.parkermoore.de/2014/08/01/header-anchor-links-in-vanilla-javascript-for-github-pages-and-jekyll/ */ +var anchorForId = function (id, text) { + var anchor = document.createElement("a"); + anchor.className = "header-link"; + anchor.href = "#" + id; + anchor.innerHTML = "<i class=\"fa fa-link\"></i>"; + return anchor; +}; + +var linkifyAnchors = function (level, containingElement) { + var headers = contentBlock.find("h" + level); + for (var h = 0; h < headers.length; h++) { + var header = headers[h]; + if (typeof header.id !== "undefined" && header.id !== "") { + header.appendChild(anchorForId(header.id, $(header).text())); + } + } +}; + +$(function () { + contentBlock = $("#content_container"); + if (!contentBlock) return; + for (var level = 1; level <= 6; level++) { + linkifyAnchors(level, contentBlock); + } +}); + +<!-- Clipboard support --> + ZeroClipboard.config({ moviePath: '//cdnjs.cloudflare.com/ajax/libs/zeroclipboard/1.3.1/ZeroClipboard.swf' }); + +$(function() { + $('div.highlight').prepend( + $('<div class="clipboard_container" title="Copy to Clipboard">'+ + '<div class="fa clipboard_button">'+ + '<div class="on-active"><div>Copied to Clipboard</div></div>'+ + '</div></div>')); + $('div.clipboard_container').each(function(index) { + var clipboard = new ZeroClipboard(); + clipboard.clip( $(this).find(":first")[0], $(this)[0] ); + var target = $(this).next(); + var txt = target.text().trim(); + if (target.find('code.bash')) { + // Strip out bash prompts from the start of each line (i.e. '$' or '%' characters + // at the very start, or immediately following any newline). 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Added: incubator/brooklyn/site/v/latest/ops/troubleshooting/overview.html URL: http://svn.apache.org/viewvc/incubator/brooklyn/site/v/latest/ops/troubleshooting/overview.html?rev=1693583&view=auto ============================================================================== --- incubator/brooklyn/site/v/latest/ops/troubleshooting/overview.html (added) +++ incubator/brooklyn/site/v/latest/ops/troubleshooting/overview.html Fri Jul 31 12:23:59 2015 @@ -0,0 +1,853 @@ +<!-- +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. 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Thankfully Brooklyn provides plenty of information to help +you locate and resolve any issues you may encounter.</p> + +<h2 id="web-console-runtime-error-information">Web-console Runtime Error Information</h2> + +<h3 id="entity-hierarchy">Entity Hierarchy</h3> + +<p>The Brooklyn web-console includes a tree view of the entities within an application. Errors within the +application are represented visually, showing a âfireâ image on the entity.</p> + +<p>When an error causes an entire application to be unexpectedly down, the error is generally propagated to the +top-level entity - i.e. marking it as âon fireâ. To find the underlying error, one should expand the entity +hierarchy tree to find the specific entities that have actually failed.</p> + +<h3 id="entitys-error-status">Entityâs Error Status</h3> + +<p>Many entities have some common sensors (i.e. attributes) that give details of the error status:</p> + +<ul> + <li><code>service.isUp</code> (often referred to as âservice upâ) is a boolean, saying whether the service is up. For many +software processes, this is inferred from whether the âservice.notUp.indicatorsâ is empty. It is also +possible for some entities to set this attribute directly.</li> + <li><code>service.notUp.indicators</code> is a map of errors. This often gives much more information than the single +<code>service.isUp</code> attribute. For example, there may be many health-check indicators for a component: +is the root URL reachable, it the management api reporting healthy, is the process running, etc.</li> + <li><code>service.problems</code> is a map of namespaced indicators of problems with a service.</li> + <li><code>service.state</code> is the actual state of the service - e.g. CREATED, STARTING, RUNNING, STOPPING, STOPPED, +DESTROYED and ON_FIRE.</li> + <li><code>service.state.expected</code> indicates the state the service is expected to be in (and when it transitioned to that). +For example, is the service expected to be starting, running, stopping, etc.</li> +</ul> + +<p>These sensor values are shown in the âsensorsâ tab - see below.</p> + +<h3 id="sensors-view">Sensors View</h3> + +<p>The âSensorsâ tab in the Brooklyn web-console shows the attribute values of a particular entity. +This gives lots of runtime information, including about the health of the entity - the +set of attributes will vary between different entity types.</p> + +<p><a href="images/jmx-sensors-large.png"><img src="images/jmx-sensors.png" alt="Sensors view in the Brooklyn debug console." /></a></p> + +<p>Note that null (or not set) sensors are hidden by default. You can click on the <code>Show/hide empty records</code> +icon (highlighted in yellow above) to see these sensors as well.</p> + +<p>The sensors view is also tabulated. You can configure the numbers of sensors shown per page +(at the bottom). There is also a search bar (at the top) to filter the sensors shown.</p> + +<h3 id="activity-view">Activity View</h3> + +<p>The activity view shows the tasks executed by a given entity. The top-level tasks are the effectors +(i.e. operations) invoked on that entity. This view allows one to drill into the task, to +see details of errors.</p> + +<p>Select the entity, and then click on the <code>Activities</code> tab.</p> + +<p>In the table showing the tasks, each row is a link - clicking on the row will drill into the details of that task, +including sub-tasks:</p> + +<p><a href="images/failed-task-large.png"><img src="images/failed-task.png" alt="Task failure error in the Brooklyn debug console." /></a></p> + +<p>For ssh tasks, this allows one to drill down to see the env, stdin, stdout and stderr. That is, you can see the +commands executed (stdin) and environment variables (env), and the output from executing that (stdout and stderr). </p> + +<p>For tasks that did not fail, one can still drill into the tasks to see what was done.</p> + +<p>Itâs always worth looking at the Detailed Status section as sometimes that will give you the information you need. +For example, it can show the exception stack trace in the thread that was executing the task that failed.</p> + +<h2 id="log-files">Log Files</h2> + +<p>Brooklynâs logging is configurable, for the files created, the logging levels, etc. +See <a href="../logging.html">Logging docs</a>.</p> + +<p>With out-of-the-box logging, <code>brooklyn.info.log</code> and <code>brooklyn.debug.log</code> files are created. These are by default +rolling log files: when the log reaches a given size, it is compressed and a new log file is started. +Therefore check the timestamps of the log files to ensure you are looking in the correct file for the +time of your error.</p> + +<p>With out-of-the-box logging, info, warnings and errors are written to the <code>brooklyn.info.log</code> file. This gives +a summary of the important actions and errors. However, it does not contain full stacktraces for errors.</p> + +<p>To find the exception, weâll need to look in Brooklynâs debug log file. By default, the debug log file +is named <code>brooklyn.debug.log</code>. You can use your favourite tools for viewing large text files. </p> + +<p>One possible tool is <code>less</code>, e.g. <code>less brooklyn.debug.log</code>. We can quickly find the last exception +by navigating to the end of the log file (using <code>Shift-G</code>), then performing a reverse-lookup by typing <code>?Exception</code> +and pressing <code>Enter</code>. Sometimes an error results in multiple exceptions being logged (e.g. first for the +entity, then for the cluster, then for the app). If you know the text of the error message (e.g. copy-pasted +from the Activities view of the web-console) then one can search explicitly for that text.</p> + +<p>The <code>grep</code> command is also extremely helpful. Useful things to grep for include:</p> + +<ul> + <li>The entity id (see the âsummaryâ tab of the entity in the web-console for the id).</li> + <li>The entity type name (if there are only a small number of entities of that type). </li> + <li>The VM IP address.</li> + <li>A particular error message (e.g. copy-pasted from the Activities view of the web-console).</li> + <li>The word WARN etc, such as <code>grep -E "WARN|ERROR" brooklyn.info.log</code>.</li> +</ul> + +<p>Grepâing for particular log messages is also useful. Some examples are shown below:</p> + +<ul> + <li>INFO: âStarted applicationâ, âStopping applicationâ and âStopped applicationâ</li> + <li>INFO: âCreating VM â</li> + <li>DEBUG: âFinished VM â</li> +</ul> + + </div> + + <div class="col-md-3"> + <div class="list-group side-menu" id="side-menu"> + + + + + + + <h4 class=" with_following"> + <a href="/v/latest/index.html" class="list-group-item breadcrumb breadcrumb0"> + User Guide + </a></h4> + + <h4 class=" with_preceding with_following"> + <a href="/v/latest/ops/index.html" class="list-group-item breadcrumb breadcrumb1"> + Operations + </a></h4> + + <h4 class=" with_preceding"> + <a href="/v/latest/ops/troubleshooting/index.html" class="list-group-item breadcrumb breadcrumb2"> + Troubleshooting + </a></h4> + + + + + + <a href="/v/latest/ops/troubleshooting/overview.html" class="list-group-item active">Overview + </a> + + + + + + <a href="/v/latest/ops/troubleshooting/deployment.html" class="list-group-item">Deployment + </a> + + + + + + <a href="/v/latest/ops/troubleshooting/connectivity.html" class="list-group-item">Server Connectivity + </a> + + + + + + <a href="/v/latest/ops/troubleshooting/softwareprocess.html" class="list-group-item">SoftwareProcess Entities + </a> + + + + + + <a href="/v/latest/ops/troubleshooting/going-deep-in-java-and-logs.html" class="list-group-item">Going Deep in Java and Logs + </a> + + + + + + + +</div> +<div id="width_reference"></div> + + +<script language="JavaScript" type="application/javascript"> + + +sidemenu_x_sizer=function(){ $('#side-menu').width($('#side-menu').parent().find('#width_reference').outerWidth()); 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