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| <div class="container blog"> |
| <section class="blog__header post_page__header"> |
| <a href="/blog/">← Apache Ignite Blog</a> |
| <h1>Apache Ignite 2.10: Thin Client Expansion</h1> |
| <p> |
| March 18, 2021 by <strong>Maxim Muzafarov: </strong><a href="http://www.facebook.com/sharer.php?u=https://ignite.apache.org/blog/undefined">Facebook</a><span>, </span |
| ><a href="http://twitter.com/home?status=Apache Ignite 2.10: Thin Client Expansion%20https://ignite.apache.org/blog/undefined">Twitter</a> |
| </p> |
| </section> |
| <div class="blog__content"> |
| <main class="blog_main"> |
| <section class="blog__posts"> |
| <article class="post"> |
| <div> |
| <p class="entryContent"> |
| As of March 15, 2021, <a href="https://ignite.apache.org/">Apache Ignite</a> 2.10 has been released. You can directly check the full list of resolved <a href="https://s.apache.org/i3ny6">Important JIRA's</a> but here |
| let’s briefly overview some valuable improvements. |
| </p> |
| <h3 id="thin-clients">Thin Clients</h3> |
| Thin clients now support several important features which, previously were available only on the thick clients. Thin clients are always backward and forward compatible with the server nodes of the cluster, so the cluster |
| upgrade process will be more convenient if the lack of these features prevented you from doing that. |
| <p>See the list of what is changed for thin clients below:</p> |
| <ul> |
| <li>Transactions</li> |
| <li>Service invocations</li> |
| <li>Continuous Queries</li> |
| <li>SQL API</li> |
| <li>Cluster API</li> |
| <li>Cache Async API</li> |
| <li>Kubernetes Discovery (<em>ThinClientKubernetesAddressFinder</em>)</li> |
| </ul> |
| You may check the <a href="https://cwiki.apache.org/confluence/display/IGNITE/Thin+clients+features">List of Thin Client Features</a> that supported by platforms you are interested in or see the |
| <a href="https://ptupitsyn.github.io/Whats-New-In-Ignite-Net-2.10/">What's new in Apache Ignite.NET 2.10</a>.<!-- end --> |
| <h3 id="cluster-monitoring">Cluster Monitoring</h3> |
| Apache Ignite self-monitoring and cluster health check subsystems are also extended by additional SQL-views and command line scripts. |
| <h4 id="new-_control-script_-commands">New <em>control-script</em> Commands</h4> |
| <p>Query any of the available system views.</p> |
| <code> |
| <pre>control.sh --system-view views</pre> |
| <pre>Command [SYSTEM-VIEW] started</pre> |
| <pre>--------------------------------------------------------------------------------</pre> |
| <pre>name schema description</pre> |
| <pre>SQL_QUERIES_HISTORY SYS SQL queries history.</pre> |
| <pre>INDEXES SYS SQL indexes</pre> |
| <pre>BASELINE_NODES SYS Baseline topology nodes</pre> |
| <pre>STRIPED_THREADPOOL_QUEUE SYS Striped thread pool task queue</pre> |
| <pre>SCAN_QUERIES SYS Scan queries</pre> |
| <pre>PARTITION_STATES SYS Distribution of cache group partitions across cluster nodes</pre> |
| <br /> |
| <pre>Command [SYSTEM-VIEW] finished with code: 0</pre> |
| <pre>--------------------------------------------------------------------------------</pre> |
| </code> |
| <p>Query any of the available system metrics.</p> |
| <code> |
| <pre>[source, text]</pre> |
| <pre>control.sh --metric sysCurrentThreadCpuTime</pre> |
| <pre>Command [METRIC] started</pre> |
| <pre>--------------------------------------------------------------------------------</pre> |
| <pre>metric value</pre> |
| <pre>sys.CurrentThreadCpuTime 17270000</pre> |
| <pre>Command [METRIC] finished with code: 0</pre> |
| <pre>--------------------------------------------------------------------------------</pre> |
| </code> |
| <p><a href="https://ignite.apache.org/docs/latest/tools/control-script">Read More</a></p> |
| <h4 id="managing-ignite-system-properties">Managing Ignite System Properties</h4> |
| <p> |
| In addition to basic cluster configuration settings, you can perform some low-level cluster configuration and tuning via Ignite system properties. Run the command below to see the list of all available system properties |
| for configuration: |
| </p> |
| <code> |
| <pre>$./ ignite.sh -systemProps</pre> |
| <br /> |
| <pre>--------------------------------------------------------------------------------</pre> |
| <pre>IGNITE_AFFINITY_HISTORY_SIZE - [Integer] Maximum size for affinity assignment history. Default is 25.</pre> |
| <pre>IGNITE_ALLOW_ATOMIC_OPS_IN_TX - [Boolean] Allows atomic operations inside transactions. Default is true.</pre> |
| <pre>IGNITE_ALLOW_START_CACHES_IN_PARALLEL - [Boolean] Allows to start multiple caches in parallel. Default is true.</pre> |
| </code> |
| <p><a href="https://ignite.apache.org/docs/latest/setup#setting-ignite-system-properties">Read more</a></p> |
| <h3 id="cluster-profiling">Cluster Profiling</h3> |
| From now on, Apache Ignite is delivered with the cluster profiling tool. This tool collects and processes all cluster internal information about Queries, Compute Tasks, Cache operations, Checkpoint and WAL statistics, and so |
| on for problem detection and cluster self-tuning purposes. Each cluster node collects performance statistics into a special binary file that is placed under the <code>[IGINTE_WORK_DIR]/perf_stat/</code> directory with the |
| template filename as<code>node-[nodeId]-[index].prf</code>. All these files are consumed by offline-tool that builds the report in a human-readable format. |
| <p><a href="https://ignite.apache.org/docs/latest/monitoring-metrics/performance-statistics">Read More</a></p> |
| <p><img src="/img/blog/d445a88f-98d1-4a6e-b4d8-037e819ca91f.png" alt="transactions statistics" style="display: block; margin: auto; width: 50%" /></p> |
| <h3 id="transparent-data-encryption-cache-key-rotation">Transparent Data Encryption - Cache Key Rotation</h3> |
| Payment card industry data security standard (PCI DSS) requires that key-management procedures include a predefined crypto period for each key in use and define a process for key changes at the end of the defined crypto |
| period. An expired key should not be used to encrypt new data, but it can be used for archived data, such keys should be strongly protected (section 3.5 - 3.6 of PCI DSS Requirements and Security Assessment Procedures). |
| <p>Apache Ignite now supports full PCI DSS requirements:</p> |
| <ul> |
| <li><em>Transparent Data Encryption</em> available since the 2.7 release.</li> |
| <li><em>Master Key Rotation</em> procedure available since the 2.9 release.</li> |
| <li><em>Cache Key Rotation</em> procedure available since the 2.10 release.</li> |
| </ul> |
| You may use the CLI tools that provide the ability to change the re-encryption rate as well as suspend and resume background re-encryption at runtime. |
| <p><a href="https://ignite.apache.org/docs/latest/security/cache-encryption-key-rotation">Read More</a></p> |
| </div> |
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