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| <h1></h1> |
| |
| <h1 id="faircallqueue">FairCallQueue</h1> |
| <p>This document contains information for setting up the <code>FairCallQueue</code> feature with Ozone. |
| In order for <code>FairCallQueue</code> to be enabled and used, |
| Hadoop RPC must be used as transport protocol for OM - S3G communication. |
| There is no implementation for gRPC yet.</p> |
| <p>There is a custom <code>IdentityProvider</code> implementation for Ozone that must be specified in the configuration, otherwise |
| there is no S3G impersonation which makes the <code>FairCallQueue</code> ineffective since it’s only reading one user, |
| the S3G special user instead of the S3G client user.</p> |
| <h2 id="configuration">Configuration</h2> |
| <p>There must be a port specified to which the OM will forward any activity |
| and the <code>FailCallQueue</code> and <code>DecayRpcScheduler</code> will listen to. |
| Furthermore, this port will have to be part of every configuration name.</p> |
| <p>Port used for below examples : 9862</p> |
| <div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-XML" data-lang="XML"><span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ozone.om.address<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>OMDomain:9862<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ozone.om.s3.grpc.server_enabled<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>false<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ozone.om.transport.class<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>org.apache.hadoop.ozone.om.protocolPB.Hadoop3OmTransportFactory<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.callqueue.impl<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>org.apache.hadoop.ipc.FairCallQueue<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.scheduler.impl<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>org.apache.hadoop.ipc.DecayRpcScheduler<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.identity-provider.impl<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>org.apache.hadoop.ozone.om.helpers.OzoneIdentityProvider<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.scheduler.priority.levels<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>2<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.backoff.enable<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>true<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.faircallqueue.multiplexer.weights<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>2,1<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| <span style="color:#f92672"><property></span> |
| <span style="color:#f92672"><name></span>ipc.9862.decay-scheduler.thresholds<span style="color:#f92672"></name></span> |
| <span style="color:#f92672"><value></span>50<span style="color:#f92672"></value></span> |
| <span style="color:#f92672"></property></span> |
| </code></pre></div> |
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| Version: 1.5.0-SNAPSHOT, Last Modified: February 27, 2024 <a class="hide-child link primary-color" href="https://github.com/apache/ozone/commit/7939faf7d6c904bf1e4ad32baa5d6d0c1de19003">7939faf</a> |
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