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NS_E_CACHE_ARCHIVE_CONFLICT
How to investigate NS_E_CACHE_ARCHIVE_CONFLICT
Mechanism and scope
This result (0xC00D13EC) marks a cache download/archive operation overlaps another incompatible operation for the same content. It belongs to the server-side control path, not to a generic local media-player failure.
The cache/proxy layer first applies policy, then decides whether to serve local content, revalidate it, contact an origin server, proxy it, redirect the client or reject the request., those decisions are separate from ordinary player buffering. In a this result trace, keep the cache key, origin validators and policy decision together. While diagnosing it, a cache proxy behaves both as a server to the player and as a client to the origin. The decisive question is whether the live object and values match that boundary; the base AllStat description alone does not reveal the object generation, selected plug-in or lower-level failure.
What to record before changing anything
| Evidence | Why it matters for it |
|---|---|
| Decisive state | cache key, origin URL, active archive/download handles, content version and operation start times. |
| Owning object | Record the server, publishing point, playlist, namespace node, plug-in or cache item that returned this result, including its creation or restart time. |
| First lower-level result | Preserve the earliest Win32, socket, COM, parser or plug-in event before the HRESULT; later wrappers can map several causes to this result. |
| Controlled comparison | Use a known-good object of the same type and vary only the precondition described as “a cache download/archive operation overlaps another incompatible operation for the same content”. |
| Security-sensitive data | Log identifiers, lengths, hashes and redacted URLs where possible; do not publish passwords, authorization files or unrestricted client data. |
Comparison with adjacent states
Primary distinction: origin timeout is an upstream communication failure; archive conflict is local operation concurrency.
| Nearby result | Different checkpoint |
|---|---|
NS_E_CACHE_ORIGIN_SERVER_NOT_FOUND | Compare its own symbolic boundary and the first failing call; it must not be grouped automatically with it. |
NS_E_CACHE_NOT_MODIFIED | Relative to it, this neighboring result belongs to another state or validation branch even when the user-visible symptom is similar. |
NS_E_CACHE_ORIGIN_SERVER_TIMEOUT | Use the object type and operation sequence to determine which result is authoritative. |
Code-specific failure anatomy
In a representative incident, the server reaches a cache download/archive operation overlaps another incompatible operation for the same content and rejects the operation before the caller can safely assume the next stage occurred. The incident record should therefore join cache key, origin URL, active archive/download handles, content version and operation start times with the object generation and the exact administrative or protocol request.
A useful negative control is serialize the operations for that cache item or wait for the current archive to finish before issuing the next request. If that change advances the same it call, the result supports this boundary. If it remains, return to the first lower-level event instead of broadening the repair.
The tempting but misleading response is deleting arbitrary cached files while handles remain active. That action does not test the distinction that matters here: origin timeout is an upstream communication failure; archive conflict is local operation concurrency. This distinction is also why monitoring should retain the symbolic name instead of storing only a generic COM failure.
Smallest useful experiment
- Capture
0xC00D13EC, it, the exact API/administrative action and the first failure timestamp. - Preserve cache key, origin URL, active archive/download handles, content version and operation start times.
- confirm that the object still belongs to the current WMServer, publishing-point or presentation generation.
- Perform one isolated experiment: serialize the operations for that cache item or wait for the current archive to finish before issuing the next request.
- Repeat the original the operation through the same protocol and service account; do not substitute a different client-side test.
- After it, verify the expected next state and retain any later HRESULT as a separate pipeline result.
Success means the same operation crosses this checkpoint and produces the expected next state, not merely that the symbolic code disappears.
Changes that do not establish the cause
- deleting arbitrary cached files while handles remain active.
- a broad reinstall is especially weak evidence here because it changes many unrelated components while leaving the rejected server precondition unexplained.
- Do not suppress it or replace it with a generic “media server error”; retain the symbolic code and owning operation in telemetry.
Verification outcomes
| Retest observation | Interpretation |
|---|---|
| The same call still returns it | The rejected precondition has not changed, or the caller is still using an old object/configuration generation. |
| The operation advances and a later code appears | The boundary was cleared. After it, diagnose the new code at its own source, parser, sink, network or client stage. |
| A new object succeeds while the retained object fails | Object lifetime or stale context is part of the incident; update lifecycle handling rather than applying a machine-wide repair. |
| Only one publishing point, playlist, cache key or plug-in fails | The evidence favors object-specific configuration or content over a server-wide outage. |
Technical references
- Windows Media Server Cache Proxy Functionality
- Creating Cache Proxy Plug-ins
- Windows Media Services HTTP Proxy Server Interaction
- Microsoft HRESULT registry
Close the incident only after it clears on a current object.
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