Add spring-batch-partitioning: manager/worker partitioning, gridSize semantics, rejected-partition recovery, and a real 10M-row scaling sweep

2026-09-14 09:36:35 +00:00
parent b81af72bc3
commit 34e9f5b243
40 changed files with 2071 additions and 0 deletions
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.springframework.boot</groupId>
+    <artifactId>spring-boot-starter-parent</artifactId>
+    <version>4.1.1</version>
+    <relativePath/>
+  </parent>
+
+  <groupId>com.ankurm</groupId>
+  <artifactId>spring-batch-partitioning</artifactId>
+  <version>1.0.0</version>
+  <name>spring-batch-partitioning</name>
+  <description>Spring Batch partitioning and parallel steps: scaling a 10-million-row job</description>
+
+  <properties>
+    <java.version>25</java.version>
+  </properties>
+
+  <dependencies>
+    <!-- Brings spring-boot-starter-batch (BatchAutoConfiguration) plus
+         spring-boot-starter-batch-jdbc (a real JDBC-backed JobRepository, required here: the
+         whole point of the restart demo in docs/07-restart-and-partitions.md is that the
+         manager step's bookkeeping about which partitions already completed survives the JVM
+         exiting). -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-batch-jdbc</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-jdbc</artifactId>
+    </dependency>
+
+    <!-- The diagnostic endpoint in web/PartitionInsightController -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
+
+    <!-- File-based H2: the PARTITION_STATS and ORDER_RISK_SUMMARY tables, and the job
+         repository itself, all need to survive one java -jar exiting and another starting for
+         the restart-only-the-failed-partition demonstration to mean anything. -->
+    <dependency>
+      <groupId>com.h2database</groupId>
+      <artifactId>h2</artifactId>
+      <scope>runtime</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.batch</groupId>
+      <artifactId>spring-batch-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+</project>