IGNITE-28731 Create cluster auto activation plugin - #355
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Aug 11, 2026
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| /** {@inheritDoc} */ | ||
| @Override public boolean apply(Collection<ClusterNode> nodes) { | ||
| Set<String> missingNodes = new LinkedHashSet<>(requiredNodes); |
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| Set<String> missingNodes = new LinkedHashSet<>(requiredNodes); | |
| Set<String> missingNodes = new HashSet<>(requiredNodes); |
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| if (condition.apply(cluster.nodes())) { | ||
| if (logger.isInfoEnabled()) | ||
| logger.info("Auto activation plugin set cluster state ACTIVE - activation condition meet"); | ||
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| cluster.state(ClusterState.ACTIVE); | ||
| } | ||
| else { | ||
| if (logger.isInfoEnabled()) | ||
| logger.info("Auto activation skipped - activation condition not meet"); | ||
| } | ||
| } |
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| if (condition.apply(cluster.nodes())) { | |
| if (logger.isInfoEnabled()) | |
| logger.info("Auto activation plugin set cluster state ACTIVE - activation condition meet"); | |
| cluster.state(ClusterState.ACTIVE); | |
| } | |
| else { | |
| if (logger.isInfoEnabled()) | |
| logger.info("Auto activation skipped - activation condition not meet"); | |
| } | |
| } | |
| if (condition.apply(cluster.nodes())) { | |
| if (logger.isInfoEnabled()) | |
| logger.info("Auto activation plugin set cluster state ACTIVE - activation condition meet"); | |
| cluster.state(ClusterState.ACTIVE); | |
| return; | |
| } | |
| if (logger.isInfoEnabled()) | |
| logger.info("Auto activation skipped - activation condition not meet"); | |
| } |
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Usually it's better to use extra return instead of else
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| /** {@inheritDoc} */ | ||
| @Override public String copyright() { | ||
| return ""; |
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| return ""; | |
| return "Apache Software Foundation"; |
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Same as in org.apache.ignite.cdc.conflictresolve.CacheVersionConflictResolverPluginProvider#copyright
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| /** {@inheritDoc} */ | ||
| @Override public boolean apply(Collection<ClusterNode> nodes) { | ||
| Set<String> missingNodes = new LinkedHashSet<>(requiredValues); |
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| Set<String> missingNodes = new LinkedHashSet<>(requiredValues); | |
| Set<String> missingNodes = new HashSet<>(requiredValues); |
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Better to use HashSet when we do not need insertion order for iteration
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| <!-- | ||
| POM file. | ||
| --> |
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| <!-- | |
| POM file. | |
| --> |
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Delete to fix Ignoring multiple XML header comment! warning for command mvn clean install -pl :ignite-auto-activation-ext -am -Pcheckstyle -DskipTests
| return; | ||
| } | ||
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| if (condition.apply(cluster.nodes())) { |
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Can we use cluster.forServers().nodes() here? Then we do not need client checks in both predicate classes.
Or replace IgniteException("Auto-activation-plugin supports on with return false
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Good suggestion! I've applied the cluster.forServers().nodes()
| import org.apache.ignite.plugin.PluginValidationException; | ||
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| /** | ||
| * Activate cluster when specified condition meet |
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| * Activate cluster when specified condition meet | |
| * Activate cluster when specified condition meet. |
| import static org.apache.ignite.testframework.GridTestUtils.assertThrows; | ||
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| /** | ||
| * {@link AutoActivationPluginProvider} test |
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| * {@link AutoActivationPluginProvider} test | |
| * Tests {@link AutoActivationPluginProvider}. |
| - Cluster baseline is not empty | ||
| - `condition` contains any client node | ||
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| Depending on how you use Ignite, you can an extension using one of the following methods: |
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you can an extension using one
looks like a verb is missing
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Certainly missed it. Fixed.
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| switch (igniteInstanceName) { | ||
| case NODE_0: | ||
| igniteConfiguration.setConsistentId(NODE_0); | ||
| break; | ||
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| case NODE_1: | ||
| igniteConfiguration.setConsistentId(NODE_1); | ||
| break; | ||
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| case NODE_2: | ||
| igniteConfiguration.setConsistentId(NODE_2); | ||
| break; | ||
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| default: throw new IllegalArgumentException("Unknown node: " + igniteInstanceName); | ||
| } |
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Looks like switch is overhead here and we can simplify to smth like:
return super.getConfiguration(igniteInstanceName)
.setConsistentId(igniteInstanceName)
.setClusterStateOnStart(INACTIVE)
.setGridLogger(listeningLog);
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Oh, this is much better! Done
chesnokoff
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Aug 19, 2026
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Many tests repeat the same node startup sequence and cluster state checks. Can we extract common helper methods for starting configured nodes and checking the expected state? This would make the individual test scenarios shorter and easier to understand
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| @Override public boolean apply(Collection<ClusterNode> nodes) { | ||
| Set<String> missingNodes = new HashSet<>(requiredNodes); | ||
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| for (ClusterNode node : nodes) { | ||
| String nodeConsistentId = node.consistentId().toString(); | ||
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| missingNodes.remove(nodeConsistentId); | ||
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| if (missingNodes.isEmpty()) | ||
| break; | ||
| } | ||
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| return missingNodes.isEmpty(); | ||
| } |
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Suggested change
| @Override public boolean apply(Collection<ClusterNode> nodes) { | |
| Set<String> missingNodes = new HashSet<>(requiredNodes); | |
| for (ClusterNode node : nodes) { | |
| String nodeConsistentId = node.consistentId().toString(); | |
| missingNodes.remove(nodeConsistentId); | |
| if (missingNodes.isEmpty()) | |
| break; | |
| } | |
| return missingNodes.isEmpty(); | |
| } | |
| @Override public boolean apply(Collection<ClusterNode> nodes) { | |
| Set<String> missingNodes = new HashSet<>(requiredNodes); | |
| for (ClusterNode node : nodes) { | |
| String nodeConsistentId = node.consistentId().toString(); | |
| missingNodes.remove(nodeConsistentId); | |
| if (missingNodes.isEmpty()) | |
| return true; | |
| } | |
| return false; | |
| } |
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| @Override public boolean apply(Collection<ClusterNode> nodes) { | ||
| Set<String> missingNodes = new HashSet<>(requiredValues); | ||
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| for (ClusterNode node : nodes) { | ||
| String attrVal = node.attribute(attrName); | ||
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| missingNodes.remove(attrVal); | ||
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| if (missingNodes.isEmpty()) | ||
| break; | ||
| } | ||
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| return missingNodes.isEmpty(); | ||
| } |
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Suggested change
| @Override public boolean apply(Collection<ClusterNode> nodes) { | |
| Set<String> missingNodes = new HashSet<>(requiredValues); | |
| for (ClusterNode node : nodes) { | |
| String attrVal = node.attribute(attrName); | |
| missingNodes.remove(attrVal); | |
| if (missingNodes.isEmpty()) | |
| break; | |
| } | |
| return missingNodes.isEmpty(); | |
| } | |
| @Override public boolean apply(Collection<ClusterNode> nodes) { | |
| Set<String> missingNodes = new HashSet<>(requiredValues); | |
| for (ClusterNode node : nodes) { | |
| String attrVal = node.attribute(attrName); | |
| missingNodes.remove(attrVal); | |
| if (missingNodes.isEmpty()) | |
| return true; | |
| } | |
| return false; | |
| } |
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| /** {@inheritDoc} */ | ||
| @Override public void onIgniteStart() { | ||
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| } | ||
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| /** @return IgniteConfiguration from XML. */ | ||
| private IgniteConfiguration getConfigurationFromXml(String xmlPath) throws Exception { |
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From IDEA: Exception 'java.lang.Exception' is never thrown in the method
| PluginProvider<?> autoActivationProvider = new AutoActivationPluginProvider( | ||
| new ActivateByConsistentID(Set.of(NODE_0, NODE_1)) | ||
| ); | ||
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| PluginProvider<?> autoActivationProvider = new AutoActivationPluginProvider( | ||
| new ActivateByConsistentID(Set.of(NODE_2)) | ||
| ); | ||
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| PluginProvider<?> autoActivationProvider = new AutoActivationPluginProvider( | ||
| new ActivateByConsistentID(Set.of(NODE_2)) | ||
| ); | ||
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same for other methods: remove empty lines as first lines in method bodies
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| private CacheConfiguration getCacheConfiguration() { | ||
| return new CacheConfiguration<>() |
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| private CacheConfiguration getCacheConfiguration() { | |
| return new CacheConfiguration<>() | |
| private CacheConfiguration<String, Integer> getCacheConfiguration() { | |
| return new CacheConfiguration<String, Integer>() |
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let's avoid raw usage of type
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