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<a href="/docs/2.11.1/quick-start/dotnet"
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>.NET/C#</a>
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<a href="/docs/2.11.1/quick-start/cpp"
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>C++</a>
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>Python</a>
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<a href="/docs/2.11.1/quick-start/nodejs"
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>Node.JS</a>
</li>
<li>
<a href="/docs/2.11.1/quick-start/sql"
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>SQL</a>
</li>
<li>
<a href="/docs/2.11.1/quick-start/php"
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>PHP</a>
</li>
<li>
<a href="/docs/2.11.1/quick-start/restapi"
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>REST API</a>
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<a href="/docs/2.11.1/installation/installing-using-docker"
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>Installing Using Docker</a>
</li>
<li>
<a href="/docs/2.11.1/installation/deb-rpm"
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>Installing DEB or RPM package</a>
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<li><a href="/docs/2.11.1/installation/kubernetes/amazon-eks-deployment" class=''>Amazon EKS</a></li>
<li><a href="/docs/2.11.1/installation/kubernetes/azure-deployment" class=''>Azure Kubernetes Service</a></li>
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</li>
<li>
<a href="/docs/2.11.1/installation/vmware-installation"
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<a href="/docs/2.11.1/understanding-configuration"
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>Understanding Configuration</a>
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>Setting Up</a>
</li>
<li>
<a href="/docs/2.11.1/logging"
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>Configuring Logging</a>
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<li>
<a href="/docs/2.11.1/resources-injection"
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>Resources Injection</a>
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</li>
<li>
<a href="/docs/2.11.1/starting-nodes" class='' >Starting and Stopping Nodes</a>
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<li>
<button type='button' class='group-toggle collapsed '>Clustering<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<a href="/docs/2.11.1/clustering/clustering"
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>Overview</a>
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<a href="/docs/2.11.1/clustering/tcp-ip-discovery"
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>TCP/IP Discovery</a>
</li>
<li>
<a href="/docs/2.11.1/clustering/zookeeper-discovery"
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>ZooKeeper Discovery</a>
</li>
<li>
<a href="/docs/2.11.1/clustering/discovery-in-the-cloud"
class=''
>Discovery in the Cloud</a>
</li>
<li>
<a href="/docs/2.11.1/clustering/network-configuration"
class=''
>Network Configuration</a>
</li>
<li>
<a href="/docs/2.11.1/clustering/connect-client-nodes"
class=''
>Connecting Client Nodes</a>
</li>
<li>
<a href="/docs/2.11.1/clustering/baseline-topology"
class=''
>Baseline Topology</a>
</li>
<li>
<a href="/docs/2.11.1/clustering/running-client-nodes-behind-nat"
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>Running Client Nodes Behind NAT</a>
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<button type='button' class='group-toggle collapsed '>Thin Clients<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<a href="/docs/2.11.1/thin-clients/getting-started-with-thin-clients"
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<li>
<a href="/docs/2.11.1/thin-clients/java-thin-client"
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>Java Thin Client</a>
</li>
<li>
<a href="/docs/2.11.1/thin-clients/dotnet-thin-client"
class=''
>.NET Thin Client</a>
</li>
<li>
<a href="/docs/2.11.1/thin-clients/cpp-thin-client"
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>C++ Thin Client</a>
</li>
<li>
<a href="/docs/2.11.1/thin-clients/python-thin-client"
class=''
>Python Thin Client</a>
</li>
<li>
<a href="/docs/2.11.1/thin-clients/php-thin-client"
class=''
>PHP Thin Client</a>
</li>
<li>
<a href="/docs/2.11.1/thin-clients/nodejs-thin-client"
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>Node.js Thin Client</a>
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<li>
<button
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<li><a href="/docs/2.11.1/binary-client-protocol/binary-client-protocol" class=''>Binary Client Protocol</a></li>
<li><a href="/docs/2.11.1/binary-client-protocol/data-format" class=''>Data Format</a></li>
<li><a href="/docs/2.11.1/binary-client-protocol/key-value-queries" class=''>Key-Value Queries</a></li>
<li><a href="/docs/2.11.1/binary-client-protocol/sql-and-scan-queries" class=''>SQL and Scan Queries</a></li>
<li><a href="/docs/2.11.1/binary-client-protocol/binary-type-metadata" class=''>Binary Types Metadata</a></li>
<li><a href="/docs/2.11.1/binary-client-protocol/cache-configuration" class=''>Cache Configuration</a></li>
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</li>
</nav>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Data Modeling<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<li>
<a href="/docs/2.11.1/data-modeling/data-modeling"
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>Introduction</a>
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<li>
<a href="/docs/2.11.1/data-modeling/data-partitioning"
class=''
>Data Partitioning</a>
</li>
<li>
<a href="/docs/2.11.1/data-modeling/affinity-collocation"
class=''
>Affinity Colocation</a>
</li>
<li>
<a href="/docs/2.11.1/data-modeling/binary-marshaller"
class=''
>Binary Marshaller</a>
</li>
</nav>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Configuring Memory<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class='nav-group collapsed'>
<li>
<a href="/docs/2.11.1/memory-architecture"
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>Memory Architecture</a>
</li>
<li>
<a href="/docs/2.11.1/memory-configuration/data-regions"
class=''
>Configuring Data Regions</a>
</li>
<li>
<a href="/docs/2.11.1/memory-configuration/eviction-policies"
class=''
>Eviction Policies</a>
</li>
<li>
<a href="/docs/2.11.1/memory-configuration/replacement-policies"
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>Replacement Policies</a>
</li>
</nav>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Configuring Persistence<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class='nav-group collapsed'>
<li>
<a href="/docs/2.11.1/persistence/native-persistence"
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>Ignite Persistence</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/external-storage"
class=''
>External Storage</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/swap"
class=''
>Swapping</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/custom-cache-store"
class=''
>Implementing Custom Cache Store</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/snapshot-directory"
class=''
>Configuring Snapshot Directory</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/snapshots"
class=''
>Cluster Snapshots</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/disk-compression"
class=''
>Disk Compression</a>
</li>
<li>
<a href="/docs/2.11.1/persistence/persistence-tuning"
class=''
>Tuning Persistence</a>
</li>
</nav>
</li>
<li>
<a href="/docs/2.11.1/snapshots/snapshots" class='' >Cluster Snapshots</a>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Configuring Caches<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class='nav-group collapsed'>
<li>
<a href="/docs/2.11.1/configuring-caches/configuration-overview"
class=''
>Cache Configuration</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/configuring-backups"
class=''
>Configuring Partition Backups</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/partition-loss-policy"
class=''
>Partition Loss Policy</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/atomicity-modes"
class=''
>Atomicity Modes</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/expiry-policies"
class=''
>Expiry Policy</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/on-heap-caching"
class=''
>On-Heap Caching</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/cache-groups"
class=''
>Cache Groups</a>
</li>
<li>
<a href="/docs/2.11.1/configuring-caches/near-cache"
class=''
>Near Caches</a>
</li>
</nav>
</li>
<li>
<a href="/docs/2.11.1/data-rebalancing" class='' >Data Rebalancing</a>
</li>
<li>
<a href="/docs/2.11.1/data-streaming" class='' >Data Streaming</a>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Using Key-Value API<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class='nav-group collapsed'>
<li>
<a href="/docs/2.11.1/key-value-api/basic-cache-operations"
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>Basic Cache Operations</a>
</li>
<li>
<a href="/docs/2.11.1/key-value-api/binary-objects"
class=''
>Working with Binary Objects</a>
</li>
<li>
<a href="/docs/2.11.1/key-value-api/using-scan-queries"
class=''
>Using Scan Queries</a>
</li>
<li>
<a href="/docs/2.11.1/read-repair"
class=''
>Read Repair</a>
</li>
</nav>
</li>
<li>
<a href="/docs/2.11.1/key-value-api/transactions" class='' >Performing Transactions</a>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Working with SQL<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class='nav-group collapsed'>
<li>
<a href="/docs/2.11.1/SQL/sql-introduction"
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>Introduction</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/schemas"
class=''
>Understanding Schemas</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/indexes"
class=''
>Defining Indexes</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/sql-api"
class=''
>Using SQL API</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/distributed-joins"
class=''
>Distributed Joins</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/sql-transactions"
class=''
>SQL Transactions</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/custom-sql-func"
class=''
>Custom SQL Functions</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/JDBC/jdbc-driver"
class=''
>JDBC Driver</a>
</li>
<li>
<a href="/docs/2.11.1/SQL/JDBC/jdbc-client-driver"
class=''
>JDBC Client Driver</a>
</li>
<li>
<button
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<li><a href="/docs/2.11.1/SQL/ODBC/odbc-driver" class=''>ODBC Driver</a></li>
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<li><a href="/docs/2.11.1/SQL/ODBC/querying-modifying-data" class=''>Querying and Modifying Data</a></li>
<li><a href="/docs/2.11.1/SQL/ODBC/specification" class=''>Specification</a></li>
<li><a href="/docs/2.11.1/SQL/ODBC/data-types" class=''>Data Types</a></li>
<li><a href="/docs/2.11.1/SQL/ODBC/error-codes" class=''>Error Codes</a></li>
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</li>
<li>
<a href="/docs/2.11.1/transactions/mvcc"
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>Multiversion Concurrency Control</a>
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<li>
<button type='button' class='group-toggle collapsed '>SQL Reference<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<a href="/docs/2.11.1/sql-reference/sql-conformance"
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>SQL Conformance</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/ddl"
class=''
>Data Definition Language (DDL)</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/dml"
class=''
>Data Manipulation Language (DML)</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/transactions"
class=''
>Transactions</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/operational-commands"
class=''
>Operational Commands</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/aggregate-functions"
class=''
>Aggregate functions</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/numeric-functions"
class=''
>Numeric Functions</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/string-functions"
class=''
>String Functions</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/date-time-functions"
class=''
>Data and Time Functions</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/system-functions"
class=''
>System Functions</a>
</li>
<li>
<a href="/docs/2.11.1/sql-reference/data-types"
class=''
>Data Types</a>
</li>
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</li>
<li>
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<li>
<a href="/docs/2.11.1/distributed-computing/distributed-computing"
class=''
>Distributed Computing API</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/cluster-groups"
class=''
>Cluster Groups</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/executor-service"
class=''
>Executor Service</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/map-reduce"
class=''
>MapReduce API</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/load-balancing"
class=''
>Load Balancing</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/fault-tolerance"
class=''
>Fault Tolerance</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/job-scheduling"
class=''
>Job Scheduling</a>
</li>
<li>
<a href="/docs/2.11.1/distributed-computing/collocated-computations"
class=''
>Colocating Computations with Data</a>
</li>
</nav>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Code Deployment<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<li>
<a href="/docs/2.11.1/code-deployment/deploying-user-code"
class=''
>Deploying User Code</a>
</li>
<li>
<a href="/docs/2.11.1/code-deployment/peer-class-loading"
class=''
>Peer Class Loading</a>
</li>
</nav>
</li>
<li>
<button type='button' class='group-toggle collapsed '>Machine Learning<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<li>
<a href="/docs/2.11.1/machine-learning/machine-learning"
class=''
>Machine Learning</a>
</li>
<li>
<a href="/docs/2.11.1/machine-learning/partition-based-dataset"
class=''
>Partition Based Dataset</a>
</li>
<li>
<a href="/docs/2.11.1/machine-learning/updating-trained-models"
class=''
>Updating Trained Models</a>
</li>
<li>
<button
type='button'
class='collapsed '>Binary Classification<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class="sub_pages collapsed">
<li><a href="/docs/2.11.1/machine-learning/binary-classification/introduction" class=''>Introduction</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/linear-svm" class=''>Linear SVM (Support Vector Machine)</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/decision-trees" class=''>Decision Trees</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/multilayer-perceptron" class=''>Multilayer Perceptron</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/logistic-regression" class=''>Logistic Regression</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/knn-classification" class=''>k-NN Classification</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/ann" class=''>ANN (Approximate Nearest Neighbor)</a></li>
<li><a href="/docs/2.11.1/machine-learning/binary-classification/naive-bayes" class=''>Naive Bayes</a></li>
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</li>
<li>
<button
type='button'
class='collapsed '>Regression<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class="sub_pages collapsed">
<li><a href="/docs/2.11.1/machine-learning/regression/introduction" class=''>Introduction</a></li>
<li><a href="/docs/2.11.1/machine-learning/regression/linear-regression" class=''>Linear Regression</a></li>
<li><a href="/docs/2.11.1/machine-learning/regression/decision-trees-regression" class=''>Decision Trees Regression</a></li>
<li><a href="/docs/2.11.1/machine-learning/regression/knn-regression" class=''>k-NN Regression</a></li>
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</li>
<li>
<button
type='button'
class='collapsed '>Clustering<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class="sub_pages collapsed">
<li><a href="/docs/2.11.1/machine-learning/clustering/introduction" class=''>Introduction</a></li>
<li><a href="/docs/2.11.1/machine-learning/clustering/k-means-clustering" class=''>K-Means Clustering</a></li>
<li><a href="/docs/2.11.1/machine-learning/clustering/gaussian-mixture" class=''>Gaussian mixture (GMM)</a></li>
</nav>
</li>
<li>
<a href="/docs/2.11.1/machine-learning/preprocessing"
class=''
>Preprocessing</a>
</li>
<li>
<button
type='button'
class='collapsed '>Model Selection<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class="sub_pages collapsed">
<li><a href="/docs/2.11.1/machine-learning/model-selection/introduction" class=''>Introduction</a></li>
<li><a href="/docs/2.11.1/machine-learning/model-selection/evaluator" class=''>Evaluator</a></li>
<li><a href="/docs/2.11.1/machine-learning/model-selection/split-the-dataset-on-test-and-train-datasets" class=''>Split the dataset on test and train datasets</a></li>
<li><a href="/docs/2.11.1/machine-learning/model-selection/hyper-parameter-tuning" class=''>Hyper-parameter tuning</a></li>
<li><a href="/docs/2.11.1/machine-learning/model-selection/pipeline-api" class=''>Pipeline API</a></li>
</nav>
</li>
<li>
<a href="/docs/2.11.1/machine-learning/multiclass-classification"
class=''
>Multiclass Classification</a>
</li>
<li>
<button
type='button'
class='collapsed '>Ensemble Methods<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
<nav class="sub_pages collapsed">
<li><a href="/docs/2.11.1/machine-learning/ensemble-methods/introduction" class=''></a></li>
<li><a href="/docs/2.11.1/machine-learning/ensemble-methods/stacking" class=''>Stacking</a></li>
<li><a href="/docs/2.11.1/machine-learning/ensemble-methods/baggin" class=''>Bagging</a></li>
<li><a href="/docs/2.11.1/machine-learning/ensemble-methods/random-forest" class=''>Random Forest</a></li>
<li><a href="/docs/2.11.1/machine-learning/ensemble-methods/gradient-boosting" class=''>Gradient Boosting</a></li>
</nav>
</li>
<li>
<a href="/docs/2.11.1/machine-learning/recommendation-systems"
class=''
>Recommendation Systems</a>
</li>
<li>
<button
type='button'
class='collapsed '>Importing Model<img class="state-indicator" src="/assets/images/left-nav-arrow.svg" width="6" height="10"></button>
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<article data-swiftype-index='true'>
<a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/extensions-and-integrations/ignite-for-spark/spark-shell.adoc" target="_blank">Edit</a>
<h1>Testing Ignite with Spark-shell</h1>
<div class="sect1">
<h2 id="starting-up-the-cluster">Starting up the cluster</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Here we will briefly cover the process of Spark and Ignite cluster startup. Refer to <a href="https://spark.apache.org/docs/latest/">Spark documentation</a> for more details.</p>
</div>
<div class="paragraph">
<p>For the testing you will need a Spark master process and at least one Spark worker. Usually Spark master and workers are separate machines, but for the test purposes you can start worker on the same machine where master starts.</p>
</div>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>Download and unpack Spark binary distribution to the same location (let it be <code>SPARK_HOME</code>) on all nodes.</p>
</li>
<li>
<p>Download and unpack Ignite binary distribution to the same location (let it be <code>IGNITE_HOME</code>) on all nodes.</p>
</li>
<li>
<p>On master node <code>cd</code> to <code>$SPARK_HOME</code> and run the following command:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">sbin/start-master.sh</code></pre>
</div>
</div>
<div class="paragraph">
<p>The script should output the path to log file of the started process. Check the log file for the master URL which has the following format: <code>spark://master_host:master_port</code> Also check the log file for the Web UI url (usually it is <code><a href="http://master_host:8080" class="bare">http://master_host:8080</a></code>).</p>
</div>
</div>
</div>
</li>
<li>
<p>On each of the worker nodes <code>cd</code> to <code>$SPARK_HOME</code> and run the following command:</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">bin/spark-class org.apache.spark.deploy.worker.Worker spark://master_host:master_port</code></pre>
</div>
</div>
<div class="paragraph">
<p>where <code>spark://master_host:master_port</code> is the master URL you grabbed from the master log file. After workers has started check the master Web UI interface, it should show all of your workers registered in status <code>ALIVE</code>.</p>
</div>
</li>
<li>
<p>On each of the worker nodes cd to <code>$IGNITE_HOME</code> and start an Ignite node by running the following command:</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">bin/ignite.sh</code></pre>
</div>
</div>
</li>
</ol>
</div>
<div class="paragraph">
<p>You should see Ignite nodes discover each other with default configuration. If your network does not allow multicast traffic, you will need to change the default configuration file and configure TCP discovery.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="working-with-spark-shell">Working with Spark-Shell</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Now that you have your cluster up and running, you can run <code>spark-shell</code> and check the integration.</p>
</div>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>Start spark shell:</p>
<div class="openblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p>Either by providing Maven coordinates to Ignite artifacts (you can use <code>--repositories</code> if you need, but it may be omitted):</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">./bin/spark-shell
<span class="nt">--packages</span> org.apache.ignite:ignite-spark:1.8.0
<span class="nt">--master</span> spark://master_host:master_port
<span class="nt">--repositories</span> http://repo.maven.apache.org/maven2/org/apache/ignite</code></pre>
</div>
</div>
</li>
<li>
<p>Or by providing paths to Ignite jar file paths using <code>--jars</code> parameter</p>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">./bin/spark-shell <span class="nt">--jars</span> path/to/ignite-core.jar,path/to/ignite-spark.jar,path/to/cache-api.jar,path/to/ignite-log4j.jar,path/to/log4j.jar <span class="nt">--master</span> spark://master_host:master_port</code></pre>
</div>
</div>
</li>
</ul>
</div>
<div class="paragraph">
<p>You should see Spark shell started up.</p>
</div>
<div class="paragraph">
<p>Note that if you are planning to use spring configuration loading, you will need to add the <code>ignite-spring</code> dependency as well:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">./bin/spark-shell
<span class="nt">--packages</span> org.apache.ignite:ignite-spark:1.8.0,org.apache.ignite:ignite-spring:1.8.0
<span class="nt">--master</span> spark://master_host:master_port</code></pre>
</div>
</div>
</div>
</div>
</li>
<li>
<p>Let&#8217;s create an instance of Ignite context using default configuration:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="scala"><span class="k">import</span> <span class="nn">org.apache.ignite.spark._</span>
<span class="k">import</span> <span class="nn">org.apache.ignite.configuration._</span>
<span class="k">val</span> <span class="nv">ic</span> <span class="k">=</span> <span class="k">new</span> <span class="nc">IgniteContext</span><span class="o">(</span><span class="n">sc</span><span class="o">,</span> <span class="o">()</span> <span class="k">=&gt;</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">())</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>You should see something like</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="text">ic: org.apache.ignite.spark.IgniteContext = org.apache.ignite.spark.IgniteContext@62be2836</code></pre>
</div>
</div>
<div class="paragraph">
<p>An alternative way to create an instance of IgniteContext is to use a configuration file. Note that if path to configuration is specified in a relative form, then the <code>IGNITE_HOME</code> environment variable should be globally set in the system as the path is resolved relative to <code>IGNITE_HOME</code></p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="scala"><span class="k">import</span> <span class="nn">org.apache.ignite.spark._</span>
<span class="k">import</span> <span class="nn">org.apache.ignite.configuration._</span>
<span class="k">val</span> <span class="nv">ic</span> <span class="k">=</span> <span class="k">new</span> <span class="nc">IgniteContext</span><span class="o">(</span><span class="n">sc</span><span class="o">,</span> <span class="s">"examples/config/spark/example-shared-rdd.xml"</span><span class="o">)</span></code></pre>
</div>
</div>
</div>
</div>
</li>
<li>
<p>Let&#8217;s now create an instance of <code>IgniteRDD</code> using "partitioned" cache in default configuration:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="scala"><span class="k">val</span> <span class="nv">sharedRDD</span> <span class="k">=</span> <span class="nv">ic</span><span class="o">.</span><span class="py">fromCache</span><span class="o">[</span><span class="kt">Integer</span>, <span class="kt">Integer</span><span class="o">](</span><span class="s">"partitioned"</span><span class="o">)</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>You should see an instance of RDD created for partitioned cache:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="text">shareRDD: org.apache.ignite.spark.IgniteRDD[Integer,Integer] = IgniteRDD[0] at RDD at IgniteAbstractRDD.scala:27</code></pre>
</div>
</div>
<div class="paragraph">
<p>Note that creation of RDD is a local operation and will not create a cache in Ignite cluster.</p>
</div>
</div>
</div>
</li>
<li>
<p>Let&#8217;s now actually ask Spark to do something with our RDD, for example, get all pairs where value is less than 10:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="scala"><span class="nv">sharedRDD</span><span class="o">.</span><span class="py">filter</span><span class="o">(</span><span class="nv">_</span><span class="o">.</span><span class="py">_2</span> <span class="o">&lt;</span> <span class="mi">10</span><span class="o">).</span><span class="py">collect</span><span class="o">()</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>As our cache has not been filled yet, the result will be an empty array:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="text">res0: Array[(Integer, Integer)] = Array()</code></pre>
</div>
</div>
<div class="paragraph">
<p>Check the logs of remote spark workers and see how Ignite context will start clients on all remote workers in the cluster. You can also start command-line Visor and check that "partitioned" cache has been created.</p>
</div>
</div>
</div>
</li>
<li>
<p>Let&#8217;s now save some values into Ignite:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="scala"><span class="nv">sharedRDD</span><span class="o">.</span><span class="py">savePairs</span><span class="o">(</span><span class="nv">sc</span><span class="o">.</span><span class="py">parallelize</span><span class="o">(</span><span class="mi">1</span> <span class="n">to</span> <span class="mi">100000</span><span class="o">,</span> <span class="mi">10</span><span class="o">).</span><span class="py">map</span><span class="o">(</span><span class="n">i</span> <span class="k">=&gt;</span> <span class="o">(</span><span class="n">i</span><span class="o">,</span> <span class="n">i</span><span class="o">)))</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>After running this command you can check with command-line Visor that cache size is 100000 elements.</p>
</div>
</div>
</div>
</li>
<li>
<p>We can now check how the state we created will survive job restart. Shut down the spark shell and repeat steps 1-3. You should again have an instance of Ignite context and RDD for "partitioned" cache. We can now check how many keys there are in our RDD which value is greater than 50000:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="scala"><span class="nv">sharedRDD</span><span class="o">.</span><span class="py">filter</span><span class="o">(</span><span class="nv">_</span><span class="o">.</span><span class="py">_2</span> <span class="o">&gt;</span> <span class="mi">50000</span><span class="o">).</span><span class="py">count</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>Since we filled up cache with a sequence of number from 1 to 100000 inclusive, we should see <code>50000</code> as a result:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="text">res0: Long = 50000</code></pre>
</div>
</div>
</div>
</div>
</li>
</ol>
</div>
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