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| <h1 class="firstHeading">SMILA/Documentation/JobManagerConfiguration</h1> |
| <div id="bodyContent"> |
| <h3 id="siteSub">From Eclipsepedia</h3> |
| <div id="contentSub"><span class="subpages">< <a href="../../SMILA.html" title="SMILA">SMILA</a> | <a href="../Documentation.1.html" title="SMILA/Documentation">Documentation</a></span></div> |
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| <div><b> Available since SMILA 0.9!</b><br /></div> |
| </div> |
| <p><br /> |
| </p> |
| <a name="Configuring_the_JobManager"></a><h2> <span class="mw-headline"> Configuring the JobManager </span></h2> |
| <p>The JobManager is configured via the <a href="Bundle_org.eclipse.smila.clusterconfig.simple.html" title="SMILA/Documentation/Bundle org.eclipse.smila.clusterconfig.simple">ClusterConfig service</a>. With the "simple" ClusterConfig service, it uses one properties in the "taskmanager" section of <code>clusterconfig.json</code>: |
| </p> |
| <div dir="ltr" style="text-align: left;"><pre class="source-javascript"><span class="br0">{</span> |
| ... |
| <span class="st0">"taskmanager"</span>: <span class="br0">{</span> |
| ... |
| <span class="st0">"maxRetries"</span>: <span class="nu0">10</span>, |
| ... |
| <span class="br0">}</span>, |
| ... |
| <span class="br0">}</span></pre></div> |
| <ul><li> maxRetries: Used to decide how often a task should be retried that has failed with an RECOVERABLE_ERROR, either because the "timeToLive" was exceeded or the worker itself reported such an error. If the retry limit is reached, the task will finally fail with a FATAL_ERROR. |
| </li></ul> |
| <p>See <a href="TaskManager.html#Configuration" title="SMILA/Documentation/TaskManager">SMILA/Documentation/TaskManager#Configuration</a> for more details. |
| </p> |
| <a name="Predefined_JobManager_entities"></a><h2> <span class="mw-headline"> Predefined JobManager entities </span></h2> |
| <p>The configuration directory <tt>org.eclipse.smila.jobmanager</tt> can contain 5 files: |
| </p> |
| <ul><li> <tt>dataObjectTypes.json</tt>: DataObject types for buckets |
| </li><li> <tt>workers.json</tt>: Description of available workers |
| </li><li> <tt>buckets.json</tt> Predefined persistent buckets. |
| </li><li> <tt>workflows.json</tt>: Predefined workflow definitions. |
| </li><li> <tt>jobs.json</tt>: Predefined job definitions. |
| </li></ul> |
| <p>These files contain JobManager entity definitions that are available immediately after system startup. We call them "predefined" elements. DataObject types and workers can currently be only predefined, for the other entities additional definitions can be added and updated via the ReST API. |
| </p><p>The structure of these files is similar, e.g. the standard <tt>dataObjectTypes.json</tt> looks like this: |
| </p> |
| <div dir="ltr" style="text-align: left;"><pre class="source-javascript"><span class="br0">{</span> |
| <span class="st0">"dataObjectTypes"</span>: |
| <span class="br0">[</span> |
| <span class="br0">{</span> |
| <span class="st0">"name"</span>: <span class="st0">"recordBulks"</span>, |
| <span class="st0">"persistent"</span>: <span class="br0">{</span> |
| <span class="st0">"store"</span>: <span class="st0">"${store}"</span>, |
| <span class="st0">"object"</span>: <span class="st0">"${_bucketName}/${_uuid}"</span> |
| <span class="br0">}</span>, |
| <span class="st0">"transient"</span>: <span class="br0">{</span> |
| <span class="st0">"store"</span>: <span class="st0">"${tempStore}"</span>, |
| <span class="st0">"object"</span>: <span class="st0">"${_bucketName}/${_uuid}"</span> |
| <span class="br0">}</span> |
| <span class="br0">}</span> |
| <span class="br0">]</span> |
| <span class="br0">}</span></pre></div> |
| <p>Each file contains a single JSON object with a single key identical to the filename without suffix ("dataObjectTypes", "workers", "buckets", "workflows", "jobs"). The value for this key is a sequence of appropriate entity definitions, see the respective page for details: |
| </p> |
| <ul><li> <a href="DataObjectTypesAndBuckets.html" title="SMILA/Documentation/DataObjectTypesAndBuckets">SMILA/Documentation/DataObjectTypesAndBuckets</a> |
| </li><li> <a href="WorkerAndWorkflows.html" title="SMILA/Documentation/WorkerAndWorkflows">SMILA/Documentation/WorkerAndWorkflows</a> |
| </li><li> <a href="JobDefinitions.html" title="SMILA/Documentation/JobDefinitions">SMILA/Documentation/JobDefinitions</a> |
| </li></ul> |
| <p>Predefined entities cannot be changed or deleted using the ReST API, but only by changing the configuration files and restarting SMILA. Therefore they are marked with a <tt>"readOnly": true</tt> property when retrieved from the JobManager. You can of course make copies of them with different names to create variants. |
| </p><p>If an entity cannot be parsed or is not valid (e.g. a job definition using an undefined workflow) you will find error messages in the SMILA log file. |
| </p> |
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