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Yang, Tong
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Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
15 lines
2.0 KiB
HTML
15 lines
2.0 KiB
HTML
<a name="mrs_01_24050"></a><a name="mrs_01_24050"></a>
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<h1 class="topictitle1">How Do I Do If Coordinators and Workers Cannot Be Started on the New Node?</h1>
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<div id="body32001227"><div class="section" id="mrs_01_24050__en-us_topic_0000001173789338_section17491446172117"><h4 class="sectiontitle">Question</h4><p id="mrs_01_24050__en-us_topic_0000001173789338_p732119587217">A new host is added to the cluster in security mode, the NodeManager instance is added, and the parameters of the <span id="mrs_01_24050__en-us_topic_0000001173789338_text995728172411">HetuEngine</span> compute instance are adjusted. After the <span id="mrs_01_24050__en-us_topic_0000001173789338_text10635113032411">HetuEngine</span> compute instance is restarted, the Coordinators and Workers of the <span id="mrs_01_24050__en-us_topic_0000001173789338_text18811133515241">HetuEngine</span> compute instance cannot be started on the new host.</p>
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<div class="section" id="mrs_01_24050__en-us_topic_0000001173789338_section10637515192219"><h4 class="sectiontitle">Answer</h4><p id="mrs_01_24050__en-us_topic_0000001173789338_p151316189221">In security mode, the internal communication between nodes of <span id="mrs_01_24050__en-us_topic_0000001173789338_text201345217256">HetuEngine</span> compute instances uses the Simple and Protected GSS API Negotiation Mechanism (SPNEGO) authentication. The JKS certificate is required. It contains information about all nodes in the compute instance. The information about the newly added nodes is not contained in the original certificate. You need to restart all <span id="mrs_01_24050__en-us_topic_0000001173789338_text1826011617257">HetuEngine</span> HSBroker instances to generate a new certificate, and then restart the <span id="mrs_01_24050__en-us_topic_0000001173789338_text95421183345">HetuEngine</span> compute instance.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="mrs_01_1747.html">Common Issues About HetuEngine</a></div>
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