# Failed to register worker to raylet (2) **URL:** \ **Category:** RLlib\ **Created:** [June 18, 2025, 4:38am UTC](https://discuss.ray.io/t/failed-to-register-worker-to-raylet-2/22685 "2025-06-18T04:38:13Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![William\_Hoy](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/william_hoy/32/8049_2.png) [@William\_Hoy](https://discuss.ray.io/u/William_Hoy)\ **Post date:** [June 18, 2025, 4:38am UTC](https://discuss.ray.io/t/failed-to-register-worker-to-raylet-2/22685/1 "2025-06-18T04:38:13Z")
**1. Severity of the issue: (select one)** None: I’m just curious or want clarification. Low: Annoying but doesn’t hinder my work. Medium: Significantly affects my productivity but can find a workaround. [x] High: Completely blocks me. **2. Environment:** - Ray version: 2.46 - Python version: 3.12 - OS: windows - Cloud/Infrastructure: local - Other libs/tools (if relevant): **3. What happened vs. what you expected:** - Expected: - Actual: Running GitHub PopGym which uses ray. when I run it local after downloading the repo, I get this issue. 2025-06-18 00:27:37,494 ERROR services.py:1362 – Failed to start the dashboard , return code 3221226505 2025-06-18 00:27:37,494 ERROR services.py:1387 – Error should be written to ‘dashboard.log’ or ‘dashboard.err’. We are printing the last 20 lines for you. 2025-06-18 00:27:37,511 ERROR services.py:1431 – The last 20 lines of C:\Users\billy\AppData\Local\Temp\ray\session\_2025-06-18\_00-27-30\_852800\_61304\logs\dashboard.log (it contains the error message from the dashboard): Traceback (most recent call last): File “C:\Users\billy\Desktop\PopGym2\popgym\env\Lib\site-packages\ray\dashboard\dashboard.py”, line 247, in logging\_utils.redirect\_stdout\_stderr\_if\_needed( File “C:\Users\billy\Desktop\PopGym2\popgym\env\Lib\site-packages\ray\_private\logging\_utils.py”, line 47, in redirect\_stdout\_stderr\_if\_needed sys.stdout = open\_log(stdout\_fileno, unbuffered=True, closefd=False) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “C:\Users\billy\Desktop\PopGym2\popgym\env\Lib\site-packages\ray\_private\utils.py”, line 446, in open\_log stream = open(path, \*\*kwargs) ^^^^^^^^^^^^^^^^^^^^ OSError: [WinError 6] The handle is invalid 2025-06-18 00:27:38,164 INFO worker.py:1888 – Started a local Ray instance. [2025-06-18 00:27:41,491 E 61304 57588] core\_worker.cc:513: Failed to register worker to Raylet: IOError: [RayletClient] Unable to register worker with raylet. Unknown error worker\_id=01000000ffffffffffffffffffffffffffffffffffffffffffffffff Here is the raylet.err file: [2025-06-18 00:17:21,258 I 66712 58584] (raylet.exe) main.cc:226: Setting cluster ID to: 9557188f2111b85c3447ef939f16a99cb1c1d4c74fda6cec28cc8100 [2025-06-18 00:17:21,262 I 66712 58584] (raylet.exe) main.cc:497: Raylet is not set to kill unknown children. [2025-06-18 00:17:21,262 I 66712 58584] (raylet.exe) io\_service\_pool.cc:36: IOServicePool is running with 1 io\_service. [2025-06-18 00:17:21,263 I 66712 58584] (raylet.exe) main.cc:497: Setting node ID node\_id=a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca [2025-06-18 00:17:21,263 I 66712 58584] (raylet.exe) store\_runner.cc:50: Allowing the Plasma store to use up to 10.6162GB of memory. [2025-06-18 00:17:21,263 I 66712 58584] (raylet.exe) store\_runner.cc:66: Starting object store with directory C:\Users\billy\AppData\Local\Temp, fallback C:\Users\billy\AppData\Local\Temp\ray\session\_2025-06-18\_00-17-13\_539216\_18736, and huge page support disabled [2025-06-18 00:17:21,264 I 66712 68500] (raylet.exe) dlmalloc.cc:324: Setting dlmalloc config: plasma\_directory=C:\Users\billy\AppData\Local\Temp, fallback\_directory=C:\Users\billy\AppData\Local\Temp\ray\session\_2025-06-18\_00-17-13\_539216\_18736, hugepage\_enabled=0, fallback\_enabled=1 [2025-06-18 00:17:21,264 I 66712 68500] (raylet.exe) store.cc:583: Plasma store debug dump: Current usage: 0 / 10.6162 GB - num bytes created total: 0 0 pending objects of total size 0MB - objects spillable: 0 - bytes spillable: 0 - objects unsealed: 0 - bytes unsealed: 0 - objects in use: 0 - bytes in use: 0 - objects evictable: 0 - bytes evictable: 0 - objects created by worker: 0 - bytes created by worker: 0 - objects restored: 0 - bytes restored: 0 - objects received: 0 - bytes received: 0 - objects errored: 0 - bytes errored: 0 [2025-06-18 00:17:21,269 I 66712 58584] (raylet.exe) grpc\_server.cc:138: ObjectManager server started, listening on port 52163. [2025-06-18 00:17:21,271 I 66712 58584] (raylet.exe) worker\_killing\_policy.cc:107: Running GroupByOwner policy. [2025-06-18 00:17:21,271 W 66712 58584] (raylet.exe) memory\_monitor.cc:68: Not running MemoryMonitor. It is currently supported only on Linux. [2025-06-18 00:17:21,271 I 66712 58584] (raylet.exe) node\_manager.cc:300: Initializing NodeManager node\_id=a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca [2025-06-18 00:17:21,271 I 66712 58584] (raylet.exe) grpc\_server.cc:138: NodeManager server started, listening on port 52165. [2025-06-18 00:17:21,277 I 66712 62472] (raylet.exe) agent\_manager.cc:81: Monitor agent process with name dashboard\_agent [2025-06-18 00:17:21,280 I 66712 54696] (raylet.exe) agent\_manager.cc:81: Monitor agent process with name runtime\_env\_agent [2025-06-18 00:17:21,283 I 66712 58584] (raylet.exe) event.cc:500: Ray Event initialized for RAYLET [2025-06-18 00:17:21,283 I 66712 58584] (raylet.exe) event.cc:331: Set ray event level to warning [2025-06-18 00:17:21,284 I 66712 58584] (raylet.exe) raylet.cc:138: Raylet of id, a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca started. Raylet consists of node\_manager and object\_manager. node\_manager address: 127.0.0.1:52165 object\_manager address: 127.0.0.1:52163 hostname: William\_Hoy [2025-06-18 00:17:21,286 I 66712 58584] (raylet.exe) node\_manager.cc:535: [state-dump] NodeManager: [state-dump] Node ID: a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca [state-dump] Node name: 127.0.0.1 [state-dump] InitialConfigResources: {GPU: 1, object\_store\_memory: 1.06162e+10, accelerator\_type:G: 1, memory: 2.47711e+10, CPU: 32, node: **internal\_head** : 1, node:127.0.0.1: 1} [state-dump] ClusterTaskManager: [state-dump] ========== Node: a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca ================= [state-dump] Infeasible queue length: 0 [state-dump] Schedule queue length: 0 [state-dump] Dispatch queue length: 0 [state-dump] num\_waiting\_for\_resource: 0 [state-dump] num\_waiting\_for\_plasma\_memory: 0 [state-dump] num\_waiting\_for\_remote\_node\_resources: 0 [state-dump] num\_worker\_not\_started\_by\_job\_config\_not\_exist: 0 [state-dump] num\_worker\_not\_started\_by\_registration\_timeout: 0 [state-dump] num\_tasks\_waiting\_for\_workers: 0 [state-dump] num\_cancelled\_tasks: 0 [state-dump] cluster\_resource\_scheduler state: [state-dump] Local id: 3561657192649176863 Local resources: {“total”:{object\_store\_memory: [106161819640000], GPU: [10000], memory: [247710912520000], accelerator\_type:G: [10000], node: **internal\_head** : [10000], CPU: [320000], node:127.0.0.1: [10000]}}, “available”: {GPU: [10000], object\_store\_memory: [106161819640000], accelerator\_type:G: [10000], memory: [247710912520000], CPU: [320000], node: **internal\_head** : [10000], node:127.0.0.1: [10000]}}, “labels”: is\_draining: 0 is\_idle: 1 Cluster resources (at most 20 nodes are shown): node id: 3561657192649176863{“total”:{object\_store\_memory: 106161819640000, accelerator\_type:G: 10000, GPU: 10000, memory: 247710912520000, node: **internal\_head** : 10000, node:127.0.0.1: 10000, CPU: 320000}}, “available”: {object\_store\_memory: 106161819640000, accelerator\_type:G: 10000, memory: 247710912520000, GPU: 10000, node: **internal\_head** : 10000, node:127.0.0.1: 10000, CPU: 320000}}, “labels”:{“[ray.io/node\_id":"a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca](http://ray.io/node_id%22:%22a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca)”,}, “is\_draining”: 0, “draining\_deadline\_timestamp\_ms”: -1} { “placement group locations”: , “node to bundles”: } [state-dump] Waiting tasks size: 0 [state-dump] Number of executing tasks: 0 [state-dump] Number of pinned task arguments: 0 [state-dump] Number of total spilled tasks: 0 [state-dump] Number of spilled waiting tasks: 0 [state-dump] Number of spilled unschedulable tasks: 0 [state-dump] Resource usage { [state-dump] } [state-dump] Backlog Size per scheduling descriptor :{workerId: num backlogs}: [state-dump] [state-dump] Running tasks by scheduling class: [state-dump] ================================================== [state-dump] [state-dump] ClusterResources: [state-dump] LocalObjectManager: [state-dump] - num pinned objects: 0 [state-dump] - pinned objects size: 0 [state-dump] - num objects pending restore: 0 [state-dump] - num objects pending spill: 0 [state-dump] - num bytes pending spill: 0 [state-dump] - num bytes currently spilled: 0 [state-dump] - cumulative spill requests: 0 [state-dump] - cumulative restore requests: 0 [state-dump] - spilled objects pending delete: 0 [state-dump] [state-dump] ObjectManager: [state-dump] - num local objects: 0 [state-dump] - num unfulfilled push requests: 0 [state-dump] - num object pull requests: 0 [state-dump] - num chunks received total: 0 [state-dump] - num chunks received failed (all): 0 [state-dump] - num chunks received failed / cancelled: 0 [state-dump] - num chunks received failed / plasma error: 0 [state-dump] Event stats: [state-dump] Global stats: 0 total (0 active) [state-dump] Queueing time: mean = -nan(ind) s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] Execution time: mean = -nan(ind) s, total = 0.000 s [state-dump] Event stats: [state-dump] PushManager: [state-dump] - num pushes in flight: 0 [state-dump] - num chunks in flight: 0 [state-dump] - num chunks remaining: 0 [state-dump] - max chunks allowed: 409 [state-dump] OwnershipBasedObjectDirectory: [state-dump] - num listeners: 0 [state-dump] - cumulative location updates: 0 [state-dump] - num location updates per second: 1173811313216000.000 [state-dump] - num location lookups per second: 0.000 [state-dump] - num locations added per second: 0.000 [state-dump] - num locations removed per second: 1173811313216000.000 [state-dump] BufferPool: [state-dump] - create buffer state map size: 0 [state-dump] PullManager: [state-dump] - num bytes available for pulled objects: 10616181964 [state-dump] - num bytes being pulled (all): 0 [state-dump] - num bytes being pulled / pinned: 0 [state-dump] - get request bundles: BundlePullRequestQueue{0 total, 0 active, 0 inactive, 0 unpullable} [state-dump] - wait request bundles: BundlePullRequestQueue{0 total, 0 active, 0 inactive, 0 unpullable} [state-dump] - task request bundles: BundlePullRequestQueue{0 total, 0 active, 0 inactive, 0 unpullable} [state-dump] - first get request bundle: N/A [state-dump] - first wait request bundle: N/A [state-dump] - first task request bundle: N/A [state-dump] - num objects queued: 0 [state-dump] - num objects actively pulled (all): 0 [state-dump] - num objects actively pulled / pinned: 0 [state-dump] - num bundles being pulled: 0 [state-dump] - num pull retries: 0 [state-dump] - max timeout seconds: 0 [state-dump] - max timeout request is already processed. No entry. [state-dump] [state-dump] WorkerPool: [state-dump] - registered jobs: 0 [state-dump] - process\_failed\_job\_config\_missing: 0 [state-dump] - process\_failed\_rate\_limited: 0 [state-dump] - process\_failed\_pending\_registration: 0 [state-dump] - process\_failed\_runtime\_env\_setup\_failed: 0 [state-dump] - num PYTHON workers: 0 [state-dump] - num PYTHON drivers: 0 [state-dump] - num PYTHON pending start requests: 0 [state-dump] - num PYTHON pending registration requests: 0 [state-dump] - num object spill callbacks queued: 0 [state-dump] - num object restore queued: 0 [state-dump] - num util functions queued: 0 [state-dump] - num idle workers: 0 [state-dump] TaskDependencyManager: [state-dump] - task deps map size: 0 [state-dump] - get req map size: 0 [state-dump] - wait req map size: 0 [state-dump] - local objects map size: 0 [state-dump] WaitManager: [state-dump] - num active wait requests: 0 [state-dump] Subscriber: [state-dump] Channel WORKER\_REF\_REMOVED\_CHANNEL [state-dump] - cumulative subscribe requests: 0 [state-dump] - cumulative unsubscribe requests: 0 [state-dump] - active subscribed publishers: 0 [state-dump] - cumulative published messages: 0 [state-dump] - cumulative processed messages: 0 [state-dump] Channel WORKER\_OBJECT\_EVICTION [state-dump] - cumulative subscribe requests: 0 [state-dump] - cumulative unsubscribe requests: 0 [state-dump] - active subscribed publishers: 0 [state-dump] - cumulative published messages: 0 [state-dump] - cumulative processed messages: 0 [state-dump] Channel WORKER\_OBJECT\_LOCATIONS\_CHANNEL [state-dump] - cumulative subscribe requests: 0 [state-dump] - cumulative unsubscribe requests: 0 [state-dump] - active subscribed publishers: 0 [state-dump] - cumulative published messages: 0 [state-dump] - cumulative processed messages: 0 [state-dump] num async plasma notifications: 0 [state-dump] Event stats: [state-dump] Global stats: 27 total (13 active) [state-dump] Queueing time: mean = 1.764 ms, max = 12.420 ms, min = 7.300 us, total = 47.637 ms [state-dump] Execution time: mean = 926.489 us, total = 25.015 ms [state-dump] Event stats: [state-dump] PeriodicalRunner.RunFnPeriodically - 11 total (2 active, 1 running), Execution time: mean = 148.627 us, total = 1.635 ms, Queueing time: mean = 4.329 ms, max = 12.420 ms, min = 32.800 us, total = 47.620 ms [state-dump] ClusterResourceManager.ResetRemoteNodeView - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.deadline\_timer.spill\_objects\_when\_over\_threshold - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.GCTaskFailureReason - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.CheckForUnexpectedWorkerDisconnects - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.deadline\_timer.debug\_state\_dump - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] ray::rpc::InternalKVGcsService.grpc\_client.GetInternalConfig - 1 total (0 active), Execution time: mean = 687.800 us, total = 687.800 us, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] ray::rpc::InternalPubSubGcsService.grpc\_client.GcsSubscriberCommandBatch - 1 total (0 active), Execution time: mean = 356.700 us, total = 356.700 us, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.deadline\_timer.record\_metrics - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.deadline\_timer.flush\_free\_objects - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] RayletWorkerPool.deadline\_timer.kill\_idle\_workers - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] ray::rpc::InternalKVGcsService.grpc\_client.GetInternalConfig.OnReplyReceived - 1 total (0 active), Execution time: mean = 21.299 ms, total = 21.299 ms, Queueing time: mean = 10.500 us, max = 10.500 us, min = 10.500 us, total = 10.500 us [state-dump] ray::rpc::NodeInfoGcsService.grpc\_client.RegisterNode - 1 total (0 active), Execution time: mean = 756.300 us, total = 756.300 us, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] NodeManager.ScheduleAndDispatchTasks - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] ray::rpc::NodeInfoGcsService.grpc\_client.RegisterNode.OnReplyReceived - 1 total (0 active), Execution time: mean = 280.200 us, total = 280.200 us, Queueing time: mean = 7.300 us, max = 7.300 us, min = 7.300 us, total = 7.300 us [state-dump] ray::rpc::InternalPubSubGcsService.grpc\_client.GcsSubscriberPoll - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] ray::rpc::InternalPubSubGcsService.grpc\_client.GcsSubscriberCommandBatch.OnReplyReceived - 1 total (1 active), Execution time: mean = 0.000 s, total = 0.000 s, Queueing time: mean = 0.000 s, max = -0.000 s, min = 9223372036.855 s, total = 0.000 s [state-dump] DebugString() time ms: 0 [state-dump] [state-dump] [2025-06-18 00:17:21,286 I 66712 58584] (raylet.exe) accessor.cc:765: Received notification for node, IsAlive = 1 node\_id=a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca [2025-06-18 00:17:21,370 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 50020, the token is 0 [2025-06-18 00:17:21,372 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 64680, the token is 1 [2025-06-18 00:17:21,376 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 69896, the token is 2 [2025-06-18 00:17:21,379 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 34360, the token is 3 [2025-06-18 00:17:21,382 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 55808, the token is 4 [2025-06-18 00:17:21,386 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 66276, the token is 5 [2025-06-18 00:17:21,389 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 70812, the token is 6 [2025-06-18 00:17:21,394 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 68424, the token is 7 [2025-06-18 00:17:21,398 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 71616, the token is 8 [2025-06-18 00:17:21,402 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 68012, the token is 9 [2025-06-18 00:17:21,407 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 67412, the token is 10 [2025-06-18 00:17:21,411 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 67208, the token is 11 [2025-06-18 00:17:21,416 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 30120, the token is 12 [2025-06-18 00:17:21,421 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 70552, the token is 13 [2025-06-18 00:17:21,426 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 34612, the token is 14 [2025-06-18 00:17:21,431 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 52564, the token is 15 [2025-06-18 00:17:21,436 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 58556, the token is 16 [2025-06-18 00:17:21,442 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 54652, the token is 17 [2025-06-18 00:17:21,447 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 12268, the token is 18 [2025-06-18 00:17:21,453 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 54972, the token is 19 [2025-06-18 00:17:21,458 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 1940, the token is 20 [2025-06-18 00:17:21,464 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 27180, the token is 21 [2025-06-18 00:17:21,470 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 69636, the token is 22 [2025-06-18 00:17:21,476 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 65252, the token is 23 [2025-06-18 00:17:21,483 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 51844, the token is 24 [2025-06-18 00:17:21,488 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 67428, the token is 25 [2025-06-18 00:17:21,494 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 10164, the token is 26 [2025-06-18 00:17:21,500 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 54344, the token is 27 [2025-06-18 00:17:21,506 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 45624, the token is 28 [2025-06-18 00:17:21,512 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 63356, the token is 29 [2025-06-18 00:17:21,518 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 67768, the token is 30 [2025-06-18 00:17:21,524 I 66712 58584] (raylet.exe) worker\_pool.cc:527: Started worker process with pid 60128, the token is 31 [2025-06-18 00:17:24,919 I 66712 54696] (raylet.exe) agent\_manager.cc:83: Agent process with name runtime\_env\_agent exited, exit code -1073740791. [2025-06-18 00:17:24,919 E 66712 54696] (raylet.exe) agent\_manager.cc:87: The raylet exited immediately because one Ray agent failed, agent\_name = runtime\_env\_agent. The raylet fate shares with the agent. This can happen because - The version of `grpcio` doesn’t follow Ray’s requirement. Agent can segfault with the incorrect `grpcio` version. Check the grpcio version `pip freeze | grep grpcio`. - The agent failed to start because of unexpected error or port conflict. Read the log `cat /tmp/ray/session_latest/logs/{dashboard_agent|runtime_env_agent}.log`. You can find the log file structure here [Configuring Logging — Ray 3.0.0.dev0](https://docs.ray.io/en/master/ray-observability/user-guides/configure-logging.html#logging-directory-structure). - The agent is killed by the OS (e.g., out of memory). [2025-06-18 00:17:24,920 I 66712 58584] (raylet.exe) main.cc:307: Raylet graceful shutdown triggered, reason = UNEXPECTED\_TERMINATION, reason message = runtime\_env\_agent failed and raylet fate-shares with it. [2025-06-18 00:17:24,920 I 66712 58584] (raylet.exe) main.cc:310: Shutting down… [2025-06-18 00:17:24,920 I 66712 58584] (raylet.exe) accessor.cc:515: Unregistering node node\_id=a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca [2025-06-18 00:17:24,931 I 66712 58584] (raylet.exe) accessor.cc:528: Finished unregistering node info, status = OK node\_id=a9e15ac0ed6b999f1db9e78b067a73cc05cba789b8c258404942c6ca [2025-06-18 00:17:24,931 W 66712 68500] (raylet.exe) store.cc:368: Disconnecting client due to connection error with code 2: End of file [2025-06-18 00:17:24,942 I 66712 58584] (raylet.exe) agent\_manager.cc:116: Killing agent dashboard\_agent, pid 69920. [2025-06-18 00:17:24,947 I 66712 62472] (raylet.exe) agent\_manager.cc:83: Agent process with name dashboard\_agent exited, exit code 1067. [2025-06-18 00:17:24,947 I 66712 58584] (raylet.exe) agent\_manager.cc:116: Killing agent runtime\_env\_agent, pid 63760. [2025-06-18 00:17:24,949 I 66712 58584] (raylet.exe) io\_service\_pool.cc:48: IOServicePool is stopped. [2025-06-18 00:17:25,080 I 66712 58584] (raylet.exe) stats.h:120: Stats module has shutdown. [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: \*\*\* SIGSEGV received at time=1750220245 \*\*\* [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65E4DD739 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF8DD36E7BF (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF8FC76623F (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF8FC6745D7 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF8FC765B7E (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DDDDEFA (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DEA4234 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DEA2C9F (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DEA61BD (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DDDFDF2 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DDDA9F0 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DD4DC14 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DBED788 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DC06949 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DF410A9 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DF39E3A (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DF3A384 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65E44F80C (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65E454AA4 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65E453E03 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65DB7FDB9 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF65E498598 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF8FBBFE8D7 (unknown) (unknown) [2025-06-18 00:17:25,081 E 66712 58584] (raylet.exe) logging.cc:496: @ 00007FF8FC63C34C (unknown) (unknown) and here is dashboard.log 2025-06-18 00:17:14,945 ERROR dashboard.py:305 – The dashboard on node William\_Hoy failed with the following error: Traceback (most recent call last): File “C:\Users\billy\Desktop\PopGym2\popgym\env\Lib\site-packages\ray\dashboard\dashboard.py”, line 247, in logging\_utils.redirect\_stdout\_stderr\_if\_needed( File “C:\Users\billy\Desktop\PopGym2\popgym\env\Lib\site-packages\ray\_private\logging\_utils.py”, line 48, in redirect\_stdout\_stderr\_if\_needed sys.stderr = open\_log(stderr\_fileno, unbuffered=True, closefd=False) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “C:\Users\billy\Desktop\PopGym2\popgym\env\Lib\site-packages\ray\_private\utils.py”, line 446, in open\_log stream = open(path, \*\*kwargs) ^^^^^^^^^^^^^^^^^^^^ OSError: [WinError 6] The handle is invalid Any help would be great! ---
**Author:** ![PhilippWillms](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/philippwillms/32/3885_2.png) [@PhilippWillms](https://discuss.ray.io/u/PhilippWillms)\ **Post date:** [June 19, 2025, 9:09pm UTC](https://discuss.ray.io/t/failed-to-register-worker-to-raylet-2/22685/2 "2025-06-19T21:09:57Z")
> > > \### What happened + What you expected to happen > > Hello, > > after installing latest… release 2.45 - no upgrade, removed older release before - I notice following fundamental issue. > > Calling ray start --head in CLI leads to following console output. > > \> (py311-raynew) C:\\Users\\Philipp\>ray start --head > \> Usage stats collection is disabled. > \> > \> Local node IP: 192.168.178.26 > \> 2025-05-02 16:53:36,888 ERROR services.py:1362 -- Failed to start the dashboard , return code 3221226505 > \> 2025-05-02 16:53:36,888 ERROR services.py:1387 -- Error should be written to 'dashboard.log' or 'dashboard.err'. We are printing the last 20 lines for you. See 'https://docs.ray.io/en/master/ray-observability/user-guides/configure-logging.html#logging-directory-structure' to find where the log file is. > \> 2025-05-02 16:53:36,888 ERROR services.py:1397 -- Couldn't read dashboard.log file. Error: 'utf-8' codec can't decode byte 0xfc in position 40: invalid start byte. It means the dashboard is broken even before it initializes the logger (mostly dependency issues). Reading the dashboard.err file which contains stdout/stderr. > \> 2025-05-02 16:53:36,888 ERROR services.py:1431 -- > \> The last 20 lines of C:\\Users\\Philipp\\AppData\\Local\\Temp\\ray\\session\_2025-05-02\_16-53-32\_217596\_35728\\logs\\dashboard.err (it contains the error message from the dashboard): > \> > \> Ray runtime started. > > I am surprised that the app says "Ray runtime started", but I do not get\` ray status\` feedback. > > \> (py311-raynew) C:\\Users\\Philipp\>ray status > \> No cluster status. It may take a few seconds for the Ray internal services to start up. > > Content of \`dashboard.log\` file > > \> 2025-05-02 16:53:33,639 ERROR dashboard.py:305 -- The dashboard on node PHILIPP-MAIN failed with the following error: > \> Traceback (most recent call last): > \> File "C:\\Users\\Philipp\\anaconda3\\envs\\py311-raynew\\Lib\\site-packages\\ray\\dashboard\\dashboard.py", line 247, in \ > \> logging\_utils.redirect\_stdout\_stderr\_if\_needed( > \> File "C:\\Users\\Philipp\\anaconda3\\envs\\py311-raynew\\Lib\\site-packages\\ray\\\_private\\logging\_utils.py", line 48, in redirect\_stdout\_stderr\_if\_needed > \> sys.stderr = open\_log(stderr\_fileno, unbuffered=True, closefd=False) > \> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > \> File "C:\\Users\\Philipp\\anaconda3\\envs\\py311-raynew\\Lib\\site-packages\\ray\\\_private\\utils.py", line 446, in open\_log > \> stream = open(path, \*\*kwargs) > \> ^^^^^^^^^^^^^^^^^^^^ > \> OSError: \[WinError 6\] Das Handle ist ungültig > > Content of \`dashboard.error\` file > > \> \[0m > > \### Versions / Dependencies > > ray == 2.45 > Windows == 26100.3915 > > \### Reproduction script > > \`\> ray start --head\` > > \### Issue Severity > > High: It blocks me from completing my task. ---
**Author:** ![William\_Hoy](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/william_hoy/32/8049_2.png) [@William\_Hoy](https://discuss.ray.io/u/William_Hoy)\ **Post date:** [June 20, 2025, 8:52pm UTC](https://discuss.ray.io/t/failed-to-register-worker-to-raylet-2/22685/3 "2025-06-20T20:52:20Z")
I forked a public repo and was just following their setup to run it and with that I need rlib. It is a reinforcement learning problem so I think there was suppose to dashboards/prints/ etc.