forked from docs/doc-exports
Yang, Tong
2195db241c
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Reviewed-by: Rechenburg, Matthias <matthias.rechenburg@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
27 lines
6.1 KiB
HTML
27 lines
6.1 KiB
HTML
<a name="admin_guide_000035"></a><a name="admin_guide_000035"></a>
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<h1 class="topictitle1">Modifying Service Configuration Parameters</h1>
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<div id="body1529658735911"><div class="section" id="admin_guide_000035__s474ed17368314c228c98a74f3017eee0"><h4 class="sectiontitle">Scenario</h4><p id="admin_guide_000035__en-us_topic_0046736984_p26145486">To meet actual service requirements, cluster administrators can quickly view and modify default service configurations on <span id="admin_guide_000035__text154091129192818">MRS</span> Manager. Configure parameters based on the information provided in the configuration description.</p>
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<div class="note" id="admin_guide_000035__note949213538331"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="admin_guide_000035__p16950115316333">The parameters of DBService cannot be modified when only one DBService role instance exists in the cluster.</p>
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<div class="section" id="admin_guide_000035__s152348a3914d4123986c3835b3d2e30a"><h4 class="sectiontitle">Impact on the System</h4><ul id="admin_guide_000035__en-us_topic_0046736995_ul43128017"><li id="admin_guide_000035__en-us_topic_0046736995_li52607835">After configuring properties of a service, you need to restart the service if the service status is <strong id="admin_guide_000035__b597045805510">Expired</strong>. The service is unavailable during the restart.</li><li id="admin_guide_000035__en-us_topic_0046736995_li3708474">After the service configuration parameters are modified and then take effect after restart, you need to download and install the client again or download the configuration file to update the client. For example, you can modify configuration parameters of the following services: HBase, HDFS, Hive, Spark, YARN, and MapReduce.</li></ul>
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<div class="section" id="admin_guide_000035__section18831355408"><h4 class="sectiontitle">Procedure</h4><ol id="admin_guide_000035__en-us_topic_0046736984_ol46262993"><li id="admin_guide_000035__li164975055814"><span>Log in to <span id="admin_guide_000035__text1439533123317">MRS</span> Manager.</span></li><li id="admin_guide_000035__li7497505580"><span>Choose <strong id="admin_guide_000035__b25727509713">Cluster</strong> > <em id="admin_guide_000035__i758005013710">Name of the desired cluster</em> > <strong id="admin_guide_000035__b8581850272">Services</strong>.</span></li><li id="admin_guide_000035__en-us_topic_0046736984_li56314915"><span>Click the specified service name on the service management page.</span></li><li id="admin_guide_000035__en-us_topic_0046736984_li37072193"><span>Click <strong id="admin_guide_000035__b15533155384711">Configuration</strong>.</span><p><p id="admin_guide_000035__p972419327225">The <strong id="admin_guide_000035__b1443117314587">Basic Configuration</strong> page is displayed by default. To modify more parameters, click the <strong id="admin_guide_000035__b1538645015810">All Configurations</strong> tab. The navigation tree displays all configuration parameters of the service. The level-1 nodes in the navigation tree are service names or role names. The parameter category is displayed after the level-1 node is expanded.</p>
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</p></li><li id="admin_guide_000035__li109094574815"><span>In the navigation tree, select the specified parameter category and change the parameter values on the right.</span><p><div class="note" id="admin_guide_000035__note10417105811613"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="admin_guide_000035__p1041745841615">Select a port parameter value from the value range on the right. Ensure that all parameter values in the same service are within the value range and are unique. Otherwise, the service fails to be started.</p>
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<p id="admin_guide_000035__p78361459884">If you are not sure about the location of a parameter, you can enter the parameter name in search box in the upper right corner. The system searches for the parameter in real time and displays the result.</p>
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</p></li><li id="admin_guide_000035__en-us_topic_0046736984_li52355595"><span>Click <strong id="admin_guide_000035__b103471352118">Save</strong>. In the confirmation dialog box, click <strong id="admin_guide_000035__b18348551313">OK</strong>.</span><p><p id="admin_guide_000035__p104575310112">Wait until the message "Operation succeeded." is displayed. Click <strong id="admin_guide_000035__b34516532112">Finish</strong>.</p>
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<p id="admin_guide_000035__p121464910111">The configuration is modified.</p>
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<div class="note" id="admin_guide_000035__en-us_topic_0046736984_note12944774"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="admin_guide_000035__en-us_topic_0046736984_ul49394106"><li id="admin_guide_000035__en-us_topic_0046736984_li41893778">To update the queue configuration of the YARN service without restarting service, choose <strong id="admin_guide_000035__b1040827837">More</strong> > <strong id="admin_guide_000035__b1752415301433">Refresh Queue</strong> to update the queue for the configuration to take effect.</li><li id="admin_guide_000035__en-us_topic_0046736984_li41499686">During configuration of the <strong id="admin_guide_000035__b143087351460">flume.config.file</strong> parameter, you can upload and download files. After a configuration file is uploaded, the old file will be overwritten. If the configuration is not saved and the service is restarted, the configuration does not take effect. Save the configuration in time.</li><li id="admin_guide_000035__li2292181115163">If you need to restart the service for the configuration to take effect after modifying service configuration parameters, choose <strong id="admin_guide_000035__b1640212186016">More</strong> > <strong id="admin_guide_000035__b1450414221700">Restart Service</strong> in the upper right corner of the service page.</li></ul>
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</p></li></ol>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="admin_guide_000034.html">Service Configuration</a></div>
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