Add deleteTasksOnCompletion to Azure Batch configuration

docs/config.md

@@ -330,21 +330,32 @@ The following settings are available:
 `azure.batch.copyToolInstallMode`
 : Specify where the `azcopy` tool used by Nextflow. When `node` is specified it's copied once during the pool creation. When `task` is provider, it's installed for each task execution (default: `node`).
 
-`azure.batch.terminateJobsOnCompletion`
-: Enables the Batch Job to automatically terminate a job once all tasks have completed (default: `true`).
-
 `azure.batch.deleteJobsOnCompletion`
-: Enable the automatic deletion of jobs created by the pipeline execution (default: `true`).
+: Delete all jobs when the workflow completes (default: `false`).
+: :::{versionchanged} 23.08.0-edge
+  Default value was changed from `true` to `false`.
+  :::
 
 `azure.batch.deletePoolsOnCompletion`
-: Enable the automatic deletion of compute node pools upon pipeline completion (default: `false`).
+: Delete all compute node pools when the workflow completes (default: `false`).
+
+`azure.batch.deleteTasksOnCompletion`
+: :::{versionadded} 23.08.0-edge
+  :::
+: Delete each task when it completes (default: `true`).
+: Although this setting is enabled by default, failed tasks will not be deleted unless it is explicitly enabled. This way, the default behavior is that successful tasks are deleted while failed tasks are preserved for debugging purposes.
 
 `azure.batch.endpoint`
 : The batch service endpoint e.g. `https://nfbatch1.westeurope.batch.azure.com`.
 
 `azure.batch.location`
 : The name of the batch service region, e.g. `westeurope` or `eastus2`. This is not needed when the endpoint is specified.
 
+`azure.batch.terminateJobsOnCompletion`
+: :::{versionadded} 23.05.0-edge
+  :::
+: When the workflow completes, set all jobs to terminate on task completion. (default: `true`).
+
 `azure.batch.pools.<name>.autoScale`
 : Enable autoscaling feature for the pool identified with `<name>`.
 

plugins/nf-azure/src/main/nextflow/cloud/azure/batch/AzBatchService.groovy

@@ -785,17 +785,13 @@ class AzBatchService implements Closeable {
         apply(() -> client.taskOperations().deleteTask(key.jobId, key.taskId))
     }
 
+    /**
+     * Set all jobs to terminate on completion.
+     */
     protected void terminateJobs() {
-        /* 
-        We set the job to terminate when all tasks are complete rather than directly terminating, this allows Azure Batch to handle the termination for us.
-        */
-
-        for( Map.Entry<TaskProcessor,String> entry : allJobIds ) {
-            final proc = entry.key
-            final jobId = entry.value
-
+        for( String jobId : allJobIds.values() ) {
             try {
-                log.trace "Terminating Azure job ${jobId}"
+                log.trace "Setting Azure job ${jobId} to terminate on completion"
 
                 CloudJob job = apply(() -> client.jobOperations().getJob(jobId))
                 final poolInfo = job.poolInfo()
@@ -813,10 +809,7 @@ class AzBatchService implements Closeable {
     }
 
     protected void cleanupJobs() {
-        for( Map.Entry<TaskProcessor,String> entry : allJobIds ) {
-            final proc = entry.key
-            final jobId = entry.value
-
+        for( String jobId : allJobIds.values() ) {
             try {
                 log.trace "Deleting Azure job ${jobId}"
                 apply(() -> client.jobOperations().deleteJob(jobId))
@@ -828,7 +821,7 @@ class AzBatchService implements Closeable {
     }
 
     protected void cleanupPools() {
-        for( String poolId : allPools.keySet()) {
+        for( String poolId : allPools.keySet() ) {
             try {
                 apply(() -> client.poolOperations().deletePool(poolId))
             }
@@ -849,17 +842,20 @@ class AzBatchService implements Closeable {
         }
         return identity
     }
+
     @Override
     void close() {
-        // Terminate existing jobs to prevent them occupying quota
-        if( config.batch().terminateJobsOnCompletion!=Boolean.FALSE ) {
+        // terminate all jobs to prevent them from occupying quota
+        if( config.batch().terminateJobsOnCompletion ) {
             terminateJobs()
         }
 
-        // cleanup app successful jobs
-        if( config.batch().deleteJobsOnCompletion!=Boolean.FALSE ) {
+        // delete all jobs
+        if( config.batch().deleteJobsOnCompletion ) {
             cleanupJobs()
         }
+
+        // delete all autopools
         if( config.batch().canCreatePool() && config.batch().deletePoolsOnCompletion ) {
             cleanupPools()
         }

plugins/nf-azure/src/main/nextflow/cloud/azure/batch/AzBatchTaskHandler.groovy

@@ -130,15 +130,15 @@ class AzBatchTaskHandler extends TaskHandler implements FusionAwareTask {
     }
 
     private Boolean shouldDelete() {
-        executor.config.batch().deleteJobsOnCompletion
+        executor.config.batch().deleteTasksOnCompletion
     }
 
     protected void deleteTask(AzTaskKey taskKey, TaskRun task) {
         if( !taskKey || shouldDelete()==Boolean.FALSE )
             return
 
         if( !task.isSuccess() && shouldDelete()==null ) {
-            // do not delete successfully executed pods for debugging purpose
+            // preserve failed tasks for debugging purposes, unless deletion is explicitly enabled
             return
         }
 

plugins/nf-azure/src/main/nextflow/cloud/azure/config/AzBatchOpts.groovy

@@ -50,6 +50,7 @@ class AzBatchOpts implements CloudTransferOptions {
     Boolean terminateJobsOnCompletion
     Boolean deleteJobsOnCompletion
     Boolean deletePoolsOnCompletion
+    Boolean deleteTasksOnCompletion
     CopyToolInstallMode copyToolInstallMode
 
     Map<String,AzPoolOpts> pools
@@ -63,9 +64,10 @@ class AzBatchOpts implements CloudTransferOptions {
         location = config.location
         autoPoolMode = config.autoPoolMode
         allowPoolCreation = config.allowPoolCreation
-        terminateJobsOnCompletion = config.terminateJobsOnCompletion
+        terminateJobsOnCompletion = config.terminateJobsOnCompletion != Boolean.FALSE
         deleteJobsOnCompletion = config.deleteJobsOnCompletion
         deletePoolsOnCompletion = config.deletePoolsOnCompletion
+        deleteTasksOnCompletion = config.deleteTasksOnCompletion
         pools = parsePools(config.pools instanceof Map ? config.pools as Map<String,Map> : Collections.<String,Map>emptyMap())
         maxParallelTransfers = config.maxParallelTransfers ? config.maxParallelTransfers as int : MAX_TRANSFER
         maxTransferAttempts = config.maxTransferAttempts ? config.maxTransferAttempts as int : MAX_TRANSFER_ATTEMPTS

plugins/nf-azure/src/test/nextflow/cloud/azure/batch/AzBatchServiceTest.groovy

@@ -350,21 +350,20 @@ class AzBatchServiceTest extends Specification {
 
     }
 
-
-    def 'should cleanup jobs by default' () {
+    def 'should set jobs to automatically terminate by default' () {
         given:
         def CONFIG = [:]
         def exec = Mock(AzBatchExecutor) {getConfig() >> new AzConfig(CONFIG) }
         AzBatchService svc = Spy(AzBatchService, constructorArgs:[exec])
         when:
         svc.close()
         then:
-        1 * svc.cleanupJobs() >> null
+        1 * svc.terminateJobs() >> null
     }
 
-    def 'should cleanup jobs no cleanup jobs' () {
+    def 'should not cleanup jobs by default' () {
         given:
-        def CONFIG = [batch:[deleteJobsOnCompletion: false]]
+        def CONFIG = [:]
         def exec = Mock(AzBatchExecutor) {getConfig() >> new AzConfig(CONFIG) }
         AzBatchService svc = Spy(AzBatchService, constructorArgs:[exec])
         when:
@@ -373,7 +372,18 @@ class AzBatchServiceTest extends Specification {
         0 * svc.cleanupJobs() >> null
     }
 
-    def 'should cleanup not cleanup pools by default' () {
+    def 'should cleanup jobs if specified' () {
+        given:
+        def CONFIG = [batch:[deleteJobsOnCompletion: true]]
+        def exec = Mock(AzBatchExecutor) {getConfig() >> new AzConfig(CONFIG) }
+        AzBatchService svc = Spy(AzBatchService, constructorArgs:[exec])
+        when:
+        svc.close()
+        then:
+        1 * svc.cleanupJobs() >> null
+    }
+
+    def 'should not cleanup pools by default' () {
         given:
         def CONFIG = [:]
         def exec = Mock(AzBatchExecutor) {getConfig() >> new AzConfig(CONFIG) }
@@ -395,7 +405,7 @@ class AzBatchServiceTest extends Specification {
         1 * svc.cleanupPools() >> null
     }
 
-    def 'should cleanup cleanup pools with allowPoolCreation' () {
+    def 'should cleanup pools with allowPoolCreation' () {
         given:
         def CONFIG = [batch:[allowPoolCreation: true, deletePoolsOnCompletion: true]]
         def exec = Mock(AzBatchExecutor) {getConfig() >> new AzConfig(CONFIG) }

plugins/nf-azure/src/test/nextflow/cloud/azure/config/AzureConfigTest.groovy

@@ -70,8 +70,10 @@ class AzureConfigTest extends Specification {
 
         and:
         cfg.batch().endpoint == null
+        cfg.batch().terminateJobsOnCompletion == true
         cfg.batch().deleteJobsOnCompletion == null
         cfg.batch().deletePoolsOnCompletion == null
+        cfg.batch().deleteTasksOnCompletion == null
         cfg.batch().location == null
         cfg.batch().autoPoolMode == null
         cfg.batch().allowPoolCreation == null
@@ -99,8 +101,11 @@ class AzureConfigTest extends Specification {
                                              endpoint: ENDPOINT,
                                              location: LOCATION,
                                              autoPoolMode: true,
-                                             allowPoolCreation: true,                                            deleteJobsOnCompletion: false,
+                                             allowPoolCreation: true,
+                                             terminateJobsOnCompletion: false,
+                                             deleteJobsOnCompletion: true,
                                              deletePoolsOnCompletion: true,
+                                             deleteTasksOnCompletion: false,
                                              pools: [ myPool: [
                                                      vmType: 'Foo_A1',
                                                      autoScale: true,
@@ -124,8 +129,10 @@ class AzureConfigTest extends Specification {
         cfg.batch().location == LOCATION
         cfg.batch().autoPoolMode == true
         cfg.batch().allowPoolCreation == true
-        cfg.batch().deleteJobsOnCompletion == false
+        cfg.batch().terminateJobsOnCompletion == false
+        cfg.batch().deleteJobsOnCompletion == true
         cfg.batch().deletePoolsOnCompletion == true
+        cfg.batch().deleteTasksOnCompletion == false
         cfg.batch().canCreatePool()
         and:
         cfg.batch().pool('myPool').vmType == 'Foo_A1'