import redis
import asyncio
from fastapi import FastAPI, HTTPException, BackgroundTasks
from uuid import uuid4
app = FastAPI()
redis_client = redis.Redis(host='localhost', port=6379, decode_responses=True)
LOCK_KEY = "deployment_lock"
QUEUE_KEY = "deployment_queue"
def acquire_lock(ttl_seconds=3600):
"""Atomically acquire deployment lock."""
return redis_client.setnx(LOCK_KEY, "active") and redis_client.expire(LOCK_KEY, ttl_seconds)
def release_lock():
redis_client.delete(LOCK_KEY)
def add_to_queue(request_id, payload):
redis_client.rpush(QUEUE_KEY, f"request_id:payload")
def get_queue_length():
return redis_client.llen(QUEUE_KEY)
async def process_next_in_queue():
"""Process next queued deployment after lock is free."""
next_item = redis_client.lpop(QUEUE_KEY)
if next_item:
request_id, payload = next_item.split(":", 1)
# Trigger deployment (could be background task)
print(f"Processing queued deployment request_id: payload")
@app.post("/deploy")
async def deploy(payload: dict, background_tasks: BackgroundTasks):
request_id = str(uuid4())
if acquire_lock():
background_tasks.add_task(release_lock, delay=3600) # placeholder for real release after completion
return "status": "started", "request_id": request_id
# Lock is held by another deployment
if get_queue_length() < 10: # prevent queue overflow
add_to_queue(request_id, str(payload))
return
"status": "queued",
"message": "A deployment is already in progress. Your request has been queued.",
"position": get_queue_length(),
"request_id": request_id
else:
raise HTTPException(status_code=429, detail="Deployment queue is full. Try later.")
The error associated with SUP0108 typically stems from one of three scenarios:
To understand why it is stuck (e.g., a container is crashing and preventing the update from finishing), check the service state:
docker service ps <service_name>
Look for lock files or semaphore entries on controllers/agents (common paths: /var/lock/, /tmp/, application data dirs).
Check DB table (deployments/operations) for rows with status = in_progress / running / pending and timestamps.
Verify no automated scheduler (cron, GitHub Actions, Jenkins triggers) started a duplicate run.
Confirm network connectivity between controller and targets — a lost connection may leave operations marked active.
If you manage software updates in Microsoft Configuration Manager (Current Branch), you have likely encountered the dreaded SUP0108 error.
The full error message usually reads:
"SUP0108: A deployment or update operation is already in progress (best)".
This error halts your Windows Server Update Services (WSUS) synchronization and prevents you from deploying critical patches. It is frustrating because it often appears without an obvious cause, locking the Software Update Point (SUP) into a phantom state of "busy."
In this guide, we will break down exactly what this error means, why it happens (the "best" context), and provide step-by-step solutions to clear the lock and get your updates moving again.
If the service is completely stuck and the commands above fail, you can remove and recreate the service.
docker service rm <service_name>
docker service create ... # (your creation command)
Summary Recommendation:
The error code ("A deployment or update operation is already in progress") is a Dell Lifecycle Controller message typically encountered during iDRAC or system firmware updates.
It indicates that the system's update engine is currently busy or locked by a previous task Immediate Solutions Wait for Completion
: Initial firmware packages can take over 5 minutes to download, and full updates may take much longer depending on network speed. Some users report stuck updates eventually completing after several hours. Reset the iDRAC
: If the operation is genuinely stuck, you can reset the iDRAC to clear the active update job.
This can be done via the iDRAC web interface or by holding the "i" button on the physical server for 16 seconds. Perform a Cold Boot
: This error often occurs because a RAM drive created for a previous upgrade was not cleared. Shut down the server, unplug the power cables for 10 seconds, and restart to clear the drive. Server Fault Troubleshooting Stuck Jobs Clear the Job Queue
: Use RACADM commands to forcibly clear the job queue if the UI is unresponsive. Check for Ghost Processes
: This message sometimes appears even when no operation is active if the Lifecycle Controller was not closed properly. Alternative Update Methods import redis import asyncio from fastapi import FastAPI,
: If updating via the Lifecycle Controller continues to fail, try updating directly through the iDRAC web interface by uploading the Windows 64-bit firmware file. Best Practices for Firmware Updates Sequential Updates
: For older systems, avoid skipping too many versions at once; perform updates in smaller "steps". Avoid High CPU Loads
: Do not perform firmware updates when the CPU is under heavy utilization, as it may impact cooling and stability. Use the Right File : Ensure you are using the correct
image rather than just the self-extracting executable in some interface modes. RACADM commands to clear the job queue or instructions for a physical power drain iDRAC10 Version 1.20.25.00 Release Notes - Dell
An "error SUP0108" usually pops up in systems like SAP Commerce Cloud (formerly Hybris) when you try to trigger a deployment or update while another task is already hogging the queue. It’s essentially the system's way of saying, "One thing at a time, please." 1. The Core Conflict
The system uses a lock mechanism to prevent data corruption. If two updates happen at once, they could overwrite each other’s configurations or database schemas. When you see SUP0108, the Cloud Portal or the API has detected an active "Running" or "Processing" status on a previous request. 2. Common Culprits
The Ghost Process: A previous deployment failed or timed out, but the system never "flipped the switch" to mark it as finished.
Parallel Team Efforts: Another developer or an automated CI/CD pipeline triggered a build without you realizing it.
Environment Initialization: If the environment is currently being initialized or wiped, all other update operations are blocked. 3. How to Resolve It
Check the Deployment Dashboard: Navigate to your Cloud Portal and look at the Deployment History. Look for any task with a status of "Scheduled," "In Progress," or "Cancelling."
Wait for the Timeout: Sometimes, the system just needs 15–30 minutes to realize a process has stalled and auto-terminate the lock.
Manual Cancellation: If you have the permissions, manually cancel the stuck deployment. Once the status moves to "Failed" or "Cancelled," the SUP0108 block should lift.
API Verification: If the UI is lagging, use the Cloud Management API to GET the status of the environment. This often provides a more "real-time" look at what's actually running. 4. Best Practices to Avoid Recurrence
Sequential Workflow: Ensure your Jenkins or GitHub Actions pipelines are set to "wait" or "fail fast" if a build is already active.
Clear Communication: Use a shared Slack or Teams channel to notify the team before hitting "Deploy" on shared staging environments.
Are you seeing this error in a production environment or a development/sandbox environment?
The error SUP0108: A deployment or update operation is already in progress is a common informational or warning message encountered on Dell PowerEdge servers using the iDRAC (Integrated Dell Remote Access Controller) or Lifecycle Controller.
It essentially means the system believes a firmware update or deployment task is already running, which prevents you from starting a new one. Common Causes
Stuck Job Queue: A previous update job may be stuck in a "Downloading" or "Scheduled" state.
Pending iDRAC Operations: The Lifecycle Controller might still be processing a background task, even if no active progress bar is visible.
Residual Lock Files: A failed update might have left behind a "lockfile" on the iDRAC RAM drive, which incorrectly signals that a process is still active.
Recent Firmware Changes: Updates to iDRAC 9 (versions prior to 7.00.60.00) sometimes fail to clear their own internal status if a file transfer times out. Best Ways to Resolve SUP0108 If you encounter this error, try these solutions in order:
Wait and Retry: In some cases, the iDRAC just needs time to finish extracting files or cleaning up its internal RAM drive. Wait at least 15–20 minutes before trying again. Clear the iDRAC Job Queue: Log into the iDRAC web interface. Navigate to Maintenance > Job Queue. Delete any stuck or failed jobs. The error associated with SUP0108 typically stems from
Reset the iDRAC: This is a safe, non-disruptive way to clear "ghost" operations without rebooting the entire server.
In the iDRAC web interface, go to the Dashboard and select Reset iDRAC.
Alternatively, hold the "i" button on the front of the server for about 16 seconds until the fans spin up.
Perform a "Cold Boot": If the error persists due to a stuck lockfile on the RAM drive, a full power cycle (unplugging the server for 30 seconds) will force a clean state.
Force Clear via RACADM: If you have command-line access, use the following Dell RACADM command:racadm jobqueue delete -i JID_CLEARALL_FORCE. Pro Tip for Future Updates
To avoid this issue, experts recommend performing updates through the iDRAC Web Interface using local files rather than the Lifecycle Controller (F10) boot menu, as it is generally more stable and easier to monitor.
Dell Lifecycle Update Stuck Running - Hardware & Infrastructure
Understanding SUP0108: How to Resolve "A Deployment or Update Operation is Already in Progress"
If you are seeing the error code SUP0108, you’ve hit a common roadblock in software deployment and infrastructure management. This error essentially means the system has "locked" itself because it believes a previous task hasn't finished yet. To prevent data corruption or conflicting configurations, it refuses to start a new operation.
Here is the best approach to diagnosing and fixing this issue. What Causes the SUP0108 Error?
The error occurs when a deployment flag or "lock" file is still active in the system’s backend. Common culprits include:
Interrupted Updates: A sudden network drop or power failure during a previous update.
Timeouts: An operation took longer than expected, leading the UI to timeout while the process still runs in the background.
Overlapping Tasks: Automated scripts or multiple administrators trying to push changes simultaneously.
Stuck Processes: A specific service or worker thread has crashed without releasing its hold on the deployment mutex. Step-by-Step Solutions to Fix SUP0108 1. The "Wait and See" Strategy
Before diving into technical fixes, wait 15 to 30 minutes. Many modern deployment engines (like Azure, AWS, or Kubernetes-based systems) have built-in cleanup routines. The system may simply be finishing a large file transfer or database migration that doesn't show progress in the UI. 2. Check Task History and Logs Navigate to your Activity Log or Task History.
Look for any tasks with a status of "Running" or "Starting."
If you find a hung task, look for a "Cancel" or "Abort" button. Force-stopping the task through the official management console is the safest way to clear the SUP0108 state. 3. Clear the Deployment Lock Manually
If the UI shows no active tasks but you still get the error, you may need to clear the lock manually.
For Cloud Environments (e.g., Azure/AWS): Check for "Locks" in the resource group or individual resource settings.
For On-Premise/Server Apps: Restart the specific service responsible for deployments (e.g., the Orchestrator service or Web Management service). This often flushes the temporary cache and releases the deployment flag. 4. Database Cleanup (Advanced)
In some enterprise applications, the "in progress" status is stored in a backend SQL table. Warning: Only attempt this if you have a backup.
Search for tables named DeploymentStatus, GlobalLocks, or TaskQueue. Look for lock files or semaphore entries on
If a row shows a status of 1 (Busy) for your specific operation, changing it back to 0 (Idle) can resolve the SUP0108 error. Best Practices to Prevent SUP0108
To avoid running into this "already in progress" loop in the future, follow these tips:
Sequence Your Updates: Never trigger a second update until you receive a "Success" or "Failed" notification from the first.
Monitor Resources: Ensure your server or cloud instance has enough CPU and RAM. Operations often hang (and stay "in progress") because the system ran out of memory mid-way.
Use Staging Environments: Test updates in a sandbox first. This helps you gauge exactly how long an update takes, so you don't accidentally interrupt a long-running process in production.
The SUP0108 error is a protective measure, not a system failure. By identifying the hung process, waiting for timeouts to clear, or manually releasing the deployment lock, you can get your updates back on track.
Are you seeing this error on a specific platform like Azure, SCCM, or a proprietary SaaS tool? Knowing the environment will help me provide more specific command-line fixes.
The error code refers to a message generated by the Integrated Remote Access Controller (iDRAC)
and Lifecycle Controller. It typically indicates that a previous firmware update or deployment job is still active or was not properly cleared from the system's internal queue. Direct Resolution Steps
To resolve this error and proceed with your operation, follow these prioritized actions: Reset the iDRAC
: This is the most effective immediate workaround. You can perform a reset via the iDRAC web interface (under Maintenance Diagnostics
) or by holding the "i" button on the server's front panel for 20 seconds. Clear the Job Queue : Log in to the iDRAC UI, navigate to the
, and manually delete any jobs that are in a "Running," "Downloading," or "Failed" state. Perform a Cold Boot
: If a soft reset fails, a complete "Cold Boot" (powering the server off and unplugging it for 30 seconds to drain flea power) will clear the internal RAM drive used for firmware extraction. Update iDRAC Firmware
: Dell has released permanent fixes for this issue in newer firmware versions (e.g., version 7.20.10.50 for iDRAC9), which better manage lockfiles and timeouts. Server Fault Underlying Causes Active Lifecycle Controller
: The error often appears if the Lifecycle Controller (F10 menu) is currently being used, even if no specific update task is visible. Stale Lockfiles
: If a previous update failed during a file transfer or timed out, the iDRAC may retain a lockfile that prevents new operations. RAM Drive Persistence
: The firmware installer creates a temporary RAM drive on the host system; if not properly unmounted after a failed run, it blocks subsequent attempts for up to 18 hours unless a cold boot is performed. Best Practices for Deployment Sequential Updates
: Avoid running multiple firmware updates simultaneously; allow each job to reach a "Completed" status before starting the next. Job Monitoring : Always check the Lifecycle Log
for specific failure details if the SUP0108 error persists, as it may hide deeper network or credential issues. Firmware Stepping
: For very old systems, "stepping" the updates (installing intermediate versions rather than jumping to the latest) can prevent deployment timeouts. Learn more iDRAC10 Version 1.20.25.00 Release Notes - Dell
This review focuses on the context of Azure Arc-enabled servers, where this specific Support Topic ID is most commonly generated.
When no deployment is active:
"status": "started", "request_id": "abc-123"
When a deployment is in progress:
"status": "queued",
"message": "A deployment is already in progress. Your request has been queued.",
"position": 2,
"request_id": "def-456"
if acquire_lock(resource_id, ttl=300s):
run_deploy()
release_lock()
else:
fail("operation already in progress")
