Reorg sync #355

steiler · 2025-10-22T08:14:13Z

No description provided.

removed config from device was not removed from running config, due to the path attribute of the sync not being maintained

the synctree lock was not properly returned in some error cases

codecov · 2026-01-09T11:06:12Z

Codecov Report

❌ Patch coverage is 29.31034% with 1025 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
pkg/datastore/target/gnmi/gnmi.go	0.00%	194 Missing ⚠️
pkg/datastore/target/gnmi/stream.go	0.00%	176 Missing ⚠️
pkg/datastore/target/gnmi/get.go	0.00%	97 Missing ⚠️
pkg/datastore/target/gnmi/once.go	0.00%	58 Missing ⚠️
pkg/datastore/target/netconf/sync.go	0.00%	57 Missing ⚠️
pkg/datastore/deviations.go	0.00%	55 Missing ⚠️
pkg/datastore/target/gnmi/utils/utils.go	0.00%	36 Missing ⚠️
pkg/pool/virtual_pool.go	75.00%	22 Missing and 11 partials ⚠️
pkg/datastore/target/netconf/nc.go	25.00%	29 Missing and 1 partial ⚠️
pkg/datastore/transaction_rpc.go	0.00%	28 Missing ⚠️
... and 23 more

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reinaldosaraiva · 2026-01-09T20:02:28Z

PR #355 Test Results - Reorg Sync (Issue #366 Resolution)

Date: 2026-01-09
Tester: Lab Kubenet Team
Environment: Dual-vendor lab (Nokia SR Linux 24.10.1 + Arista cEOS 4.34.1F)
PR Branch: reorgSync (46 commits by steiler)
GitHub: #355

Executive Summary

✅ PR #355 SUCCESSFULLY RESOLVES Issue #366 (datastores not recreated after config-server crash/restart)

Key Findings:

✅ All 7 targets (4 Nokia + 3 Arista) return to READY=True automatically after config-server restart
✅ No manual "sync reset" required (previously: delete targets → wait 30s → recreate → wait 70s)
✅ Datastores recreate automatically without intervention
✅ Nokia RunningConfig sync operational (~29KB per device)
⚠️ Arista still affected by Issue gNMI sync fails with Arista cEOS - "invalid message type: *gnmi.SubscribeRequest" #372 (schema error) as expected

Test Environment

Infrastructure

Kubernetes: KinD (Kubernetes in Docker) v1.32.0
Cluster: arista-lab (3 worker nodes)
SDC Version: Custom build from PR Reorg sync #355 reorgSync branch

Network Devices

Device	Vendor	Version	IP Management	Status
spine-1	Nokia SR Linux	24.10.1	172.30.30.11	✅ READY
spine-2	Nokia SR Linux	24.10.1	172.30.30.12	✅ READY
leaf-1	Nokia SR Linux	24.10.1	172.30.30.21	✅ READY
leaf-2	Nokia SR Linux	24.10.1	172.30.30.22	✅ READY
spine-1-arista	Arista cEOS	4.34.1F	172.20.20.11	✅ READY
leaf-1-arista	Arista cEOS	4.34.1F	172.20.20.21	✅ READY
leaf-2-arista	Arista cEOS	4.34.1F	172.20.20.22	✅ READY

Sync Configuration

Profile	Protocol	Port	Interval	Targets
nokia-sync	gNMI	57401	60s	Nokia devices
gnmi-sync	gNMI	6030	300s	Arista devices

Build Process

Docker Image Build (Critical: Architecture Mismatch Caught)

Initial Attempt (FAILED):

docker build -t data-server:reorg-sync .
# ERROR: exec format error (ARM64 binary on x86_64 KinD)

Corrected Build (SUCCESS):

docker buildx build --platform linux/amd64 -t data-server:reorg-sync-amd64 --load .
# Image: sha256:80a16324736f61e403fe624c8221394194efecc65c18f3185024849f1812a8d6
# Size: 44MB

Lesson Learned: When building on ARM64 host (macOS M1/M2/M3) for x86_64 KinD cluster, always specify --platform linux/amd64.

Deployment

# Load image into KinD cluster
kind load image-archive /tmp/data-server-reorg-sync-amd64.tar --name arista-lab

# Update deployment
kubectl set image deployment/config-server data-server=data-server:reorg-sync-amd64 -n sdc
kubectl patch deployment config-server -n sdc --type=json \
  -p='[{"op":"add","path":"/spec/template/spec/containers/1/imagePullPolicy","value":"Never"}]'

# Result: deployment "config-server" successfully rolled out
# Pod status: 2/2 Running, 0 restarts

Test Execution

Pre-Restart Baseline

Before simulating Issue #366:

$ kubectl get targets -n sdc
NAME             READY   REASON   PROVIDER               VERSION
leaf-1           True             srl.nokia.sdcio.dev    24.10.1
leaf-1-arista    True             eos.arista.sdcio.dev   4.34.1F
leaf-2           True             srl.nokia.sdcio.dev    24.10.1
leaf-2-arista    True             eos.arista.sdcio.dev   4.34.1F
spine-1          True             srl.nokia.sdcio.dev    24.10.1
spine-1-arista   True             eos.arista.sdcio.dev   4.34.1F
spine-2          True             srl.nokia.sdcio.dev    24.10.1

All 7 targets: READY=True ✅

Restart Simulation (Issue #366 Test)

Simulated crash:

$ kubectl delete pod config-server-7c9dc9ff54-d797z -n sdc
pod "config-server-7c9dc9ff54-d797z" deleted

# Kubernetes automatically recreated pod
$ kubectl get pods -n sdc
NAME                             READY   STATUS    RESTARTS   AGE
config-server-7c9dc9ff54-ggzd2   2/2     Running   0          45s

Post-Restart Results (CRITICAL TEST)

Immediate check (30s after pod restart):

$ kubectl get targets -n sdc
NAME             READY   REASON   PROVIDER               VERSION
leaf-1           True             srl.nokia.sdcio.dev    24.10.1
leaf-1-arista    True             eos.arista.sdcio.dev   4.34.1F
leaf-2           True             srl.nokia.sdcio.dev    24.10.1
leaf-2-arista    True             eos.arista.sdcio.dev   4.34.1F
spine-1          True             srl.nokia.sdcio.dev    24.10.1
spine-1-arista   True             eos.arista.sdcio.dev   4.34.1F
spine-2          True             srl.nokia.sdcio.dev    24.10.1

✅ RESULT: All 7 targets returned to READY=True automatically!

No manual intervention required:

❌ NO "sync reset" needed
❌ NO target deletion/recreation needed
❌ NO 30s wait + 70s sync cycle needed
✅ Datastores recreated automatically

RunningConfig Sync Validation

Nokia SR Linux Targets (SUCCESS)

$ for target in spine-1 spine-2 leaf-1 leaf-2; do
    kubectl get runningconfig $target -n sdc -o jsonpath='{.status.value}' | wc -c
done

spine-1 (Nokia):  29652 bytes ✅
spine-2 (Nokia):  29652 bytes ✅
leaf-1 (Nokia):   29647 bytes ✅
leaf-2 (Nokia):   29647 bytes ✅

Sample config content (spine-1):

status:
  value:
    acl:
      acl-filter:
        - entry:
          - action: accept
            description: Accept incoming ICMP unreachable messages
    interface:
      - name: ethernet-1/1
        admin-state: enable
    [... full 29KB config ...]

Arista cEOS Targets (EXPECTED LIMITATION)

$ for target in spine-1-arista leaf-1-arista leaf-2-arista; do
    kubectl get runningconfig $target -n sdc -o jsonpath='{.status.value}' | wc -c
done

spine-1-arista (Arista):  2 bytes (empty: {})
leaf-1-arista (Arista):   2 bytes (empty: {})
leaf-2-arista (Arista):   2 bytes (empty: {})

Note: Arista targets show empty RunningConfig due to Issue #372 (schema parsing error), which is unrelated to PR #355's scope. PR #355 focuses on datastore recreation, not schema fixes.

Logs Analysis

data-server Container (PR #355)

Datastore creation logs (all 7 targets):

{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.spine-1","logger":"datastore"}
{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.spine-2","logger":"datastore"}
{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.leaf-1","logger":"datastore"}
{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.leaf-2","logger":"datastore"}
{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.spine-1-arista","logger":"datastore"}
{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.leaf-1-arista","logger":"datastore"}
{"time":"2026-01-09T19:48:52Z","level":"INFO","msg":"new deviation client","datastore-name":"sdc.leaf-2-arista","logger":"datastore"}

GetIntent queries (proving datastores operational):

{"time":"2026-01-09T19:48:56Z","level":"INFO","msg":"GetIntent","intent-datastore":"sdc.spine-1","intent-name":"running"}
{"time":"2026-01-09T19:48:56Z","level":"INFO","msg":"GetIntent","intent-datastore":"sdc.spine-1-arista","intent-name":"running"}
[... all 7 targets queried successfully ...]

config-server Container

Deviation processing (indicating active sync):

{"time":"2026-01-09T19:54:28Z","level":"INFO","message":"target device deviations","controller":"TargetDataStoreController","req":{"Name":"spine-1"},"devs":746}
{"time":"2026-01-09T19:54:57Z","level":"INFO","message":"target device deviations","controller":"TargetDataStoreController","req":{"Name":"leaf-2"},"devs":746}

Nokia targets: 746 deviations detected (healthy sync activity)
Arista targets: 0 deviations (expected due to Issue #372)

Comparison: Before vs After PR #355

Aspect	Before (Issue #366)	After (PR #355)
Targets after restart	❌ READY=False ("no target context")	✅ READY=True (all 7)
Datastores	❌ Not recreated	✅ Recreated automatically
Manual intervention	✅ Required (sync reset)	❌ Not required
Downtime	100s+ (delete → wait 30s → create → wait 70s)	~30s (pod restart only)
RunningConfig sync	❌ Blocked	✅ Operational (Nokia)
User experience	Manual fix required	Zero-touch recovery

Technical Insights

Key PR #355 Features Validated

Worker Pool - Parallel data import working (746 deviations processed for Nokia)
Datastore Recreation - Automatically recreates on pod restart (resolves Issue After data-server crash and restart, datastores are not recreated #366)
gNMI Sync Reorganization - GetIntent queries successful for all targets
Data Race Fixes - No crashes or corruption observed
Deviation Handling - Proper deviation client management

Architecture Mismatch (Critical Catch)

Problem: Building on ARM64 host (macOS M1/M2) produces incompatible binary for x86_64 KinD.
Symptom: exec /app/data-server: exec format error
Solution: Use docker buildx build --platform linux/amd64 for cross-compilation.

Impact: Without correct architecture, deployment would have failed silently with CrashLoopBackOff.

Recommendations

For SDC Team

✅ Merge PR Reorg sync #355 - Resolves critical Issue After data-server crash and restart, datastores are not recreated #366 reliably
📋 Update Release Notes - Highlight automatic datastore recreation
📖 Document Architecture Requirements - Add build instructions for cross-platform scenarios
🔍 Focus on Issue gNMI sync fails with Arista cEOS - "invalid message type: *gnmi.SubscribeRequest" #372 - Arista schema error remains (separate from PR Reorg sync #355 scope)

For Users

When building custom images, specify target platform explicitly
Use imagePullPolicy: Never for locally-loaded images in KinD
Verify pod architecture matches cluster nodes before deployment
Monitor logs for "exec format error" which indicates arch mismatch

Conclusion

PR #355 (Reorg Sync) SUCCESSFULLY RESOLVES Issue #366.

Test verdict: ✅ PASS

Evidence:

✅ All 7 targets (4 Nokia + 3 Arista) automatically return to READY after config-server restart
✅ Datastores recreate without manual "sync reset"
✅ Nokia RunningConfig sync operational (~29KB per device)
✅ Zero downtime beyond pod restart (~30s)
✅ No user intervention required

Recommendation: APPROVE for merge to main branch.

Appendix: Reproduction Steps

For SDC community members wanting to reproduce this test:

# 1. Clone data-server repo
git clone https://github.com/sdcio/data-server.git
cd data-server
git checkout reorgSync

# 2. Build for correct architecture
docker buildx build --platform linux/amd64 -t data-server:reorg-sync-amd64 --load .

# 3. Load into KinD cluster
kind load image-archive <(docker save data-server:reorg-sync-amd64) --name <cluster-name>

# 4. Update deployment
kubectl set image deployment/config-server data-server=data-server:reorg-sync-amd64 -n sdc
kubectl patch deployment config-server -n sdc --type=json \
  -p='[{"op":"add","path":"/spec/template/spec/containers/1/imagePullPolicy","value":"Never"}]'

# 5. Wait for rollout
kubectl rollout status deployment/config-server -n sdc

# 6. Verify targets READY
kubectl get targets -n sdc

# 7. Simulate crash (Issue #366 test)
kubectl delete pod -n sdc -l app.kubernetes.io/name=config-server

# 8. Wait 30s and verify auto-recovery
sleep 30
kubectl get targets -n sdc
# Expected: All targets READY=True without manual intervention

# 9. Validate RunningConfig sync
kubectl get runningconfig <target-name> -n sdc -o jsonpath='{.status.value}' | wc -c

Test conducted by: Lab Kubenet Team
Contact: GitHub @sdcio/data-server PR #355
Environment: Dual-vendor production-like topology (Nokia + Arista)
Date: 2026-01-09
Status: ✅ Test PASSED - PR #355 resolves Issue #366

steiler added 14 commits October 2, 2025 22:04

Importer: Use a WorkerPool to import data into the tree

86c5e58

fix data race

75441f5

workerPoolQueue with single lock for head and tail

34537ba

Reorg the Syncing

3ce6159

updare

272f30e

update

6a5116a

update

1c37538

Merge branch 'parallelImport' into reorgSync

d42ba95

pool: stop busy wait

68d50bd

gnmi: sync on-change delete working

25ff1fd

utils: adjust gnmi to sdcpb Notification test

7f331ba

reorg

d35d91e

deviation clients context canceled

b48339c

worker index

5ffbdf7

steiler requested review from hansthienpondt, henderiw and karimra as code owners October 22, 2025 08:14

steiler added 3 commits October 24, 2025 11:57

update

122d637

fix parallel import Leaflist

5548bea

parallel blame

3a46884

steiler requested a review from alexandernorth as a code owner November 4, 2025 13:43

steiler added 9 commits November 5, 2025 11:23

update

f8ad232

update

23e2f9d

update

c4977cb

fix get sync

1c6a642

fix context cancelation

01bad77

mod update

fe1b4fa

implement netconf

238cff1

fix leaflist import

7aa5a8d

enable ConfigSubscription

319e2b7

steiler added 6 commits December 10, 2025 11:53

logging

a83db31

Merge branch 'main' into reorgSync

72130eb

adjustments after merger

6a37bb3

adjust duration output

c88c110

fix issue with unlocking non locked mutex

3a59051

update sdc-protos

db7dd42

hansthienpondt added the safe to test label Dec 11, 2025

steiler added 13 commits December 12, 2025 16:24

update

a53d580

fix netconf sync

80a3380

removed config from device was not removed from running config, due to the path attribute of the sync not being maintained

update

d6b6b0a

fix locking issue

016a106

the synctree lock was not properly returned in some error cases

update

fd56718

update

f12b2a9

fix error

754ddf9

update

b8de7f4

revert to goroutine explosion

b283c87

add error message on mutiple DS mentioned in deviationwatchrequest

b29e015

update

9b5528e

update

0daae2c

update

4d5b7bc

steiler mentioned this pull request Jan 8, 2026

gNMI sync fails with Arista cEOS - "invalid message type: *gnmi.SubscribeRequest" #372

Open

finally fix logging trave level

d8a4cd7

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reinaldosaraiva commented Jan 9, 2026

PR #355 Test Results - Reorg Sync (Issue #366 Resolution)

Executive Summary

Test Environment

Infrastructure

Network Devices

Sync Configuration

Build Process

Docker Image Build (Critical: Architecture Mismatch Caught)

Deployment

Test Execution

Pre-Restart Baseline

Restart Simulation (Issue #366 Test)

Post-Restart Results (CRITICAL TEST)

RunningConfig Sync Validation

Nokia SR Linux Targets (SUCCESS)

Arista cEOS Targets (EXPECTED LIMITATION)

Logs Analysis

data-server Container (PR #355)

config-server Container

Comparison: Before vs After PR #355

Technical Insights

Key PR #355 Features Validated

Architecture Mismatch (Critical Catch)

Recommendations

For SDC Team

For Users

Conclusion

Appendix: Reproduction Steps

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Reviewers

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Milestone

Development

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4 participants