iframe-proxy

jmsperu · 2026-03-12T18:52:31Z

Rebased onto 4.22 as requested (previously #12680).

ResourceManager.findOneRandomRunningHostByHypervisor() can return null when no KVM host in the zone has status=Up (e.g. during management server startup, brief agent disconnections, or host state transitions).

NASBackupProvider.syncBackupStorageStats() and deleteBackup() call host.getId() without a null check, causing a NullPointerException that crashes the entire BackupSyncTask background job every sync interval.

This adds null checks in both methods:

syncBackupStorageStats: log a warning and return early
deleteBackup: throw CloudRuntimeException with a descriptive message

ResourceManager.findOneRandomRunningHostByHypervisor() can return null when no KVM host in the zone has status=Up (e.g. during management server startup, brief agent disconnections, or host state transitions). NASBackupProvider.syncBackupStorageStats() and deleteBackup() call host.getId() without a null check, causing a NullPointerException that crashes the entire BackupSyncTask background job every sync interval. This adds null checks in both methods: - syncBackupStorageStats: log a warning and return early - deleteBackup: throw CloudRuntimeException with a descriptive message

DaanHoogland · 2026-03-12T18:58:08Z

blueorangutan · 2026-03-12T19:00:04Z

@DaanHoogland a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

codecov · 2026-03-12T19:06:46Z

Codecov Report

❌ Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 17.60%. Comparing base (27bce46) to head (b3cb72f).
⚠️ Report is 12 commits behind head on 4.22.

Files with missing lines	Patch %	Lines
...rg/apache/cloudstack/backup/NASBackupProvider.java	0.00%	4 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               4.22   #12805      +/-   ##
============================================
- Coverage     17.61%   17.60%   -0.01%     
- Complexity    15662    15674      +12     
============================================
  Files          5917     5917              
  Lines        531415   531606     +191     
  Branches      64973    64996      +23     
============================================
+ Hits          93588    93601      +13     
- Misses       427271   427446     +175     
- Partials      10556    10559       +3

Flag	Coverage Δ
uitests	`3.70% <ø> (-0.01%)`	⬇️
unittests	`18.67% <0.00%> (-0.01%)`	⬇️

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blueorangutan · 2026-03-12T19:21:11Z

Packaging result [SF]: ✖️ el8 ✖️ el9 ✖️ debian ✖️ suse15. SL-JID 17121

DaanHoogland · 2026-03-12T20:31:32Z

@jmsperu , probably due to the rebase:

20:18:12 [ERROR] /jenkins/workspace/acs-centos8-pkg-builder/dist/rpmbuild/BUILD/cloudstack-4.22.1.0-SNAPSHOT/plugins/backup/nas/src/main/java/org/apache/cloudstack/backup/NASBackupProvider.java:[558,12] error: cannot find symbol
20:18:12   symbol:   variable CollectionUtils
20:18:12   location: class NASBackupProvider

seems an import is missing.

jmsperu · 2026-03-18T19:22:28Z

Good catch @DaanHoogland, the CollectionUtils import was dropped during the rebase. Fixed now — should build cleanly.

DaanHoogland · 2026-03-19T10:57:49Z

@blueorangutan package

blueorangutan · 2026-03-19T11:00:04Z

@DaanHoogland a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

blueorangutan · 2026-03-19T12:47:32Z

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ el10 ✔️ debian ✔️ suse15. SL-JID 17198

DaanHoogland · 2026-03-19T15:38:11Z

@blueorangutan test

blueorangutan · 2026-03-19T15:40:04Z

@DaanHoogland a [SL] Trillian-Jenkins test job (ol8 mgmt + kvm-ol8) has been kicked to run smoke tests

Copilot

Pull request overview

Fixes a crash in the NAS backup provider’s background sync/deletion flows when no running KVM host is available in a zone (i.e., ResourceManager.findOneRandomRunningHostByHypervisor(...) returns null), preventing BackupSyncTask from dying due to NullPointerException.

Changes:

Add a null-host check in deleteBackup() and fail with a descriptive CloudRuntimeException.
Add early returns in syncBackupStorageStats() when there are no repositories and when no running KVM host can be found (with a warning log).

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

+        if (host == null) {
+            throw new CloudRuntimeException(String.format("Unable to find a running KVM host in zone %d to delete backup %s", backup.getZoneId(), backup.getUuid()));
+        }


        final Host host = resourceManager.findOneRandomRunningHostByHypervisor(Hypervisor.HypervisorType.KVM, zoneId);
+        if (host == null) {
+            logger.warn("Unable to find a running KVM host in zone {} to sync backup storage stats", zoneId);
+            return;
+        }


blueorangutan · 2026-03-20T12:06:11Z

[SF] Trillian test result (tid-15701)
Environment: kvm-ol8 (x2), zone: Advanced Networking with Mgmt server ol8
Total time taken: 70450 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr12805-t15701-kvm-ol8.zip
Smoke tests completed. 141 look OK, 8 have errors, 0 did not run
Only failed and skipped tests results shown below:

Test	Result	Time (s)	Test File
test_01_invalid_upgrade_kubernetes_cluster	`Failure`	0.01	test_kubernetes_clusters.py
test_02_upgrade_kubernetes_cluster	`Failure`	0.00	test_kubernetes_clusters.py
test_03_deploy_and_scale_kubernetes_cluster	`Failure`	0.00	test_kubernetes_clusters.py
test_04_autoscale_kubernetes_cluster	`Failure`	0.00	test_kubernetes_clusters.py
test_05_basic_lifecycle_kubernetes_cluster	`Failure`	0.00	test_kubernetes_clusters.py
test_06_delete_kubernetes_cluster	`Failure`	0.01	test_kubernetes_clusters.py
test_08_upgrade_kubernetes_ha_cluster	`Failure`	0.00	test_kubernetes_clusters.py
test_10_vpc_tier_kubernetes_cluster	`Failure`	0.00	test_kubernetes_clusters.py
test_11_test_unmanaged_cluster_lifecycle	`Error`	0.00	test_kubernetes_clusters.py
test_12_test_deploy_cluster_different_offerings_per_node_type	`Failure`	0.00	test_kubernetes_clusters.py
ContextSuite context=TestPrivateGwACL>:setup	`Error`	0.00	test_privategw_acl.py
test_02_purge_expunged_api_vm_end_date	`Error`	3.21	test_purge_expunged_vms.py
test_03_purge_expunged_api_vm_start_end_date	`Error`	2.02	test_purge_expunged_vms.py
test_04_purge_expunged_api_vm_no_date	`Error`	2.13	test_purge_expunged_vms.py
test_05_purge_expunged_vm_service_offering	`Error`	1.50	test_purge_expunged_vms.py
test_06_purge_expunged_vm_background_task	`Error`	361.51	test_purge_expunged_vms.py
test_CRUD_operations_userdata	`Error`	1523.56	test_register_userdata.py
test_deploy_vm_with_registered_userdata	`Error`	7.95	test_register_userdata.py
test_deploy_vm_with_registered_userdata_with_override_policy_allow	`Error`	10.00	test_register_userdata.py
test_deploy_vm_with_registered_userdata_with_override_policy_append	`Error`	10.46	test_register_userdata.py
test_deploy_vm_with_registered_userdata_with_override_policy_deny	`Error`	10.10	test_register_userdata.py
test_deploy_vm_with_registered_userdata_with_params	`Error`	9.14	test_register_userdata.py
test_link_and_unlink_userdata_to_template	`Error`	8.74	test_register_userdata.py
test_user_userdata_crud	`Error`	8.99	test_register_userdata.py
ContextSuite context=TestIsolatedNetworks>:setup	`Error`	0.00	test_routers_network_ops.py
ContextSuite context=TestRedundantIsolateNetworks>:setup	`Error`	0.00	test_routers_network_ops.py
ContextSuite context=TestRouterServices>:setup	`Error`	0.00	test_routers.py
ContextSuite context=TestCpuCapServiceOfferings>:setup	`Error`	0.00	test_service_offerings.py
ContextSuite context=TestServiceOfferings>:setup	`Error`	0.29	test_service_offerings.py
ContextSuite context=TestSetSourceNatIp>:setup	`Error`	0.00	test_set_sourcenat.py

jmsperu · 2026-03-20T15:51:35Z

Thanks @DaanHoogland for driving the packaging and smoke tests. All builds green and the 8 test failures are pre-existing (Kubernetes, userdata, private gw ACL) — unrelated to this change.

Is there anything else needed to get this into 4.22.1?

jmsperu · 2026-03-26T21:03:17Z

@DaanHoogland @abh1sar Gentle ping — builds and tests are green. Is this ready to merge into 4.22?

sureshanaparti · 2026-03-27T05:25:42Z

@blueorangutan package

blueorangutan · 2026-03-27T05:28:04Z

@sureshanaparti a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

abh1sar

Code LGTM

abh1sar · 2026-03-27T05:41:51Z

@DaanHoogland @abh1sar Gentle ping — builds and tests are green. Is this ready to merge into 4.22?

@jmsperu Please address the comment about import ordering. We'll get this merged after that.

blueorangutan · 2026-03-27T06:32:54Z

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ el10 ✔️ debian ✔️ suse15. SL-JID 17264

rajujith

LGTM
Tested

sureshanaparti · 2026-03-27T14:40:57Z

@blueorangutan package

blueorangutan · 2026-03-27T14:42:04Z

@sureshanaparti a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

blueorangutan · 2026-03-27T15:38:29Z

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ el10 ✔️ debian ✔️ suse15. SL-JID 17267

boring-cyborg · 2026-03-27T16:02:16Z

boring-cyborg Bot added the component:backup label Mar 12, 2026

jmsperu mentioned this pull request Mar 12, 2026

Fix NPE in NASBackupProvider when no running KVM host is available #12680

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Add missing CollectionUtils import after 4.22 rebase

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DaanHoogland added this to the 4.22.1 milestone Mar 19, 2026

DaanHoogland requested review from abh1sar and Copilot March 19, 2026 15:37

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DaanHoogland added this to Apache CloudStack 4.22.1 Mar 25, 2026

github-project-automation Bot moved this to Todo in Apache CloudStack 4.22.1 Mar 25, 2026

DaanHoogland moved this from Todo to In Progress in Apache CloudStack 4.22.1 Mar 25, 2026

jmsperu mentioned this pull request Mar 26, 2026

[RFC] Incremental NAS Backup Support for KVM Hypervisor #12899

Open

sureshanaparti requested a review from rajujith March 27, 2026 05:24

sureshanaparti added status:needs-review status:needs-testing labels Mar 27, 2026

abh1sar approved these changes Mar 27, 2026

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rajujith approved these changes Mar 27, 2026

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rajujith removed the status:needs-testing label Mar 27, 2026

Fix import ordering: move CollectionUtils to org.apache group

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sureshanaparti removed the status:needs-review label Mar 27, 2026

sureshanaparti merged commit 6ca6aa1 into apache:4.22 Mar 27, 2026
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github-project-automation Bot moved this from In Progress to Done in Apache CloudStack 4.22.1 Mar 27, 2026

abh1sar mentioned this pull request Apr 7, 2026

NullPointerException in NASBackupProvider.syncBackupStorageStats when no KVM host is in "Up" state #12679

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