| Commit message (Collapse) | Author | Age | Files | Lines |
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This PR introduces an in-memory `CidStore` option primarily for use with compute, to avoid hitting disk for ephemeral data which is not really worth persisting. And in particular not worth paying the critical path cost of persistence.
- **MemoryCidStore**: In-memory CidStore implementation backed by a hash map, optionally layered over a standard CidStore. Writes to the backing store are dispatched asynchronously via a dedicated flush thread to avoid blocking callers on disk I/O. Reads check memory first, then fall back to the backing store without caching the result.
- **ChunkStore interface**: Extract `ChunkStore` abstract class (`AddChunk`, `ContainsChunk`, `FilterChunks`) and `FallbackChunkResolver` into `zenstore.h` so `HttpComputeService` can accept different storage backends for action inputs vs worker binaries. `CidStore` and `MemoryCidStore` both implement `ChunkStore`.
- **Compute service wiring**: `HttpComputeService` takes two `ChunkStore&` params (action + worker). The compute server uses `MemoryCidStore` for actions (no disk persistence needed) and disk-backed `CidStore` for workers (cross-action reuse). The storage server passes its `CidStore` for both (unchanged behavior).
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### Security: Input validation & path safety
- **Reject local file references by default** in package parsing — only allow when explicitly opted in by the service (`ParseFlags::kAllowLocalReferences`) and validated by an `ILocalRefPolicy` (fail-closed: no policy = rejected)
- **`DataRootLocalRefPolicy`** restricts local ref paths to the server's data root via canonical path prefix matching
- **Validate attachment hashes** in compute HTTP handlers — decompresses and re-hashes each attachment at ingestion time to reject tampered payloads
- **Path traversal validation** for worker descriptions (`pathvalidation.h`) — rejects absolute paths, `..` components, Windows reserved device names, and invalid filename characters
- **Harden CbPackage parsing** against corrupt inputs — overflow-safe attachment count, bounds checks on local ref offset/size, graceful failure instead of `ZEN_ASSERT` for untrusted data
- **Harden legacy package parser** — reject zero-size binary fields, missing mappers, and optionally validate resolved attachment hashes
- **Bounds check in `CbPackageReader::MarshalLocalChunkReference`** — detect when `MakeFromFile` silently clamps offset+size to file size
### Reliability: Lock consolidation & bug fixes
- **Consolidate three action map locks into one** (`m_ActionMapLock`) — eliminates deadlock risk from multi-lock ordering, simplifies state transitions, and fixes a race where newly enqueued actions were briefly invisible to `GetActionResult`/`FindActionResult`
- **Fix infinite loop in `BaseRunnerGroup::SubmitActions`** when actions exceed total runner capacity — cap round-robin at `TotalCapacity` and default unassigned results to "No capacity"
- **Fix `MakeSafeAbsolutePathInPlace` for UNC paths** — `\server\share` now correctly becomes `\?\UNC\server\share` instead of `\?\server\share`
- **Fix `max_retries=0`** — previously fell through to the default of 3; now correctly means "no retries"
### New: ManagedProcessRunner
- Cross-platform process runner backed by `SubprocessManager` — uses async exit callbacks instead of polling, delegates CPU/memory metrics to the manager's built-in sampler
- `ProcessGroup` (JobObject on Windows, process group on POSIX) for bulk cancellation on shutdown
- `--managed` flag on `zen exec inproc` to select this runner
- Refactored monitor thread lifecycle — `StartMonitorThread()` now called from derived constructors to avoid calling virtual functions from base constructor
### Process management
- **Suppress crash dialogs** via `JOB_OBJECT_UILIMIT_ERRORMODE` + `SEM_NOGPFAULTERRORBOX` in both `WindowsProcessRunner` and `JobObject::Initialize` — prevents WER/Dr. Watson modal dialogs from blocking the monitor thread
- **CREATE_SUSPENDED → AssignProcessToJobObject → ResumeThread** pattern in `WindowsProcessRunner` — ensures job object assignment before process execution
- **Move stdout/stderr callbacks to `Spawn()` parameters** in `SubprocessManager` — prevents race where early output could be missed before callback installation
- Consistent PID logging across all runner types
### Test infrastructure
- **`zentest-appstub`**: Added `Fail` (configurable exit code) and `Crash` (abort / nullptr deref) test functions
- **Compute integration tests**: exit code handling, auto-retry exhaustion, manual reschedule after failure, mixed success/failure queues, crash handling (abort + nullptr), crash auto-retry, immediate query visibility after enqueue
- **Package format tests**: truncated header, bad magic, attachment count overflow, truncated data, local ref rejection/acceptance, policy enforcement (inside/outside root, traversal, no-policy fail-closed)
- **Legacy package parser tests**: empty input, zero-size binary, hash resolution with/without mapper, hash mismatch detection
- **UNC path tests** for `MakeSafeAbsolutePath`
### Misc
- ANSI color helper macros (`ZEN_RED`, `ZEN_BRIGHT_WHITE`, etc.) and `ZEN_BOLD`/`ZEN_DIM`/etc.
- Generic `fmt::formatter` for types with free `ToString` functions
- Compute dashboard: truncated hash display with monospace font and hover for full value
- Renamed `usonpackage_forcelink` → `cbpackage_forcelink`
- Compute enabled by default in xmake config (releases still explicitly disable)
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- Feature: Hub watchdog automatically deprovisions inactive provisioned and hibernated instances
- Feature: Added `stats/activity_counters` endpoint to measure server activity
- Feature: Added configuration options for hub watchdog
- `--hub-watchdog-provisioned-inactivity-timeout-seconds` Inactivity timeout before a provisioned instance is deprovisioned
- `--hub-watchdog-hibernated-inactivity-timeout-seconds` Inactivity timeout before a hibernated instance is deprovisioned
- `--hub-watchdog-inactivity-check-margin-seconds` Margin before timeout at which an activity check is issued
- `--hub-watchdog-cycle-interval-ms` Watchdog poll interval in milliseconds
- `--hub-watchdog-cycle-processing-budget-ms` Maximum time budget per watchdog cycle in milliseconds
- `--hub-watchdog-instance-check-throttle-ms` Minimum delay between checks on a single instance
- `--hub-watchdog-activity-check-connect-timeout-ms` Connect timeout for activity check requests
- `--hub-watchdog-activity-check-request-timeout-ms` Request timeout for activity check requests
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## Summary
This PR adds a session management service, several new dashboard pages, and a number of infrastructure improvements.
### Sessions Service
- `SessionsServiceClient` in `zenutil` announces sessions to a remote zenserver with a 15s heartbeat (POST/PUT/DELETE lifecycle)
- Storage server registers itself with its own local sessions service on startup
- Session mode attribute coupled to server mode (Compute, Proxy, Hub, etc.)
- Ended sessions tracked with `ended_at` timestamp; status filtering (Active/Ended/All)
- `--sessions-url` config option for remote session announcement
- In-process log sink (`InProcSessionLogSink`) forwards server log output to the server's own session, visible in the dashboard
### Session Log Viewer
- POST/GET endpoints for session logs (`/sessions/{id}/log`) supporting raw text and structured JSON/CbObject with batch `entries` array
- In-memory log storage per session (capped at 10k entries) with cursor-based pagination for efficient incremental fetching
- Log panel in the sessions dashboard with incremental DOM updates, auto-scroll (Follow toggle), newest-first toggle, text filter, and log-level coloring
- Auto-selects the server's own session on page load
### TCP Log Streaming
- `LogStreamListener` and `TcpLogStreamSink` for log delivery over TCP
- Sequence numbers on each message with drop detection and synthetic "dropped" notice on gaps
- Gathered buffer writes to reduce syscall overhead when flushing batches
- Tests covering basic delivery, multi-line splitting, drop detection, and sequencing
### New Dashboard Pages
- **Sessions**: master-detail layout with selectable rows, metadata panel, live WebSocket updates, paging, abbreviated date formatting, and "this" pill for the local session
- **Object Store**: summary stats tiles and bucket table with click-to-expand inline object listing (`GET /obj/`)
- **Storage**: per-volume disk usage breakdown (`GET /admin/storage`), Garbage Collection status section (next-run countdown, last-run stats), and GC History table with paginated rows and expandable detail panels
- **Network**: overview tiles, per-service request table, proxy connections, and live WebSocket updates; distinct client IPs and session counts via HyperLogLog
### Documentation Page
- In-dashboard Docs page with sidebar navigation, markdown rendering (via `marked`), Mermaid diagram support (theme-aware), collapsible sections, text filtering with highlighting, and cross-document linking
- New user-facing docs: `overview.md` (with architecture and per-mode diagrams), `sessions.md`, `cache.md`, `projects.md`; updated `compute.md`
- Dev docs moved to `docs/dev/`
### Infrastructure & Bug Fixes
- **Deflate compression** for the embedded frontend zip (~3.4MB → ~950KB); zlib inflate support added to `ZipFs` with cached decompressed buffers
- **Local IP addresses**: `GetLocalIpAddresses()` (Windows via `GetAdaptersAddresses`, Linux/Mac via `getifaddrs`); surfaced in `/status/status`, `/health/info`, and the dashboard banner
- **Dashboard nav**: unified into `zen-nav` web component with `MutationObserver` for dynamically added links, CSS `::part()` to merge banner/nav border radii, and prefix-based active link detection
- Stats broadcast refactored from manual JSON string concatenation to `CbObjectWriter`; `CbObject`-to-JS conversion improved for `TimeSpan`, `DateTime`, and large integers
- Stats WebSocket boilerplate consolidated into `ZenPage.connect_stats_ws()`
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- **`Logger` now holds a single `SinkPtr`** instead of a `std::vector<SinkPtr>`. The `SetSinks`/`AddSink` API is replaced with a single `SetSink`. This removes complexity from `Logger` itself and makes `Clone()` cheaper (no vector copy).
- **New `BroadcastSink`** (`zencore/logging/broadcastsink.h`) acts as a thread-safe, shared indirection point that fans out to a dynamic list of child sinks. Adding or removing a child sink via `AddSink`/`RemoveSink` is immediately visible to every `Logger` that holds a reference to it — including cloned loggers — without requiring each logger to be updated individually.
- **`GetDefaultBroadcastSink()`** (exposed from `zenutil/logging.h`) gives server-layer code access to the shared broadcast sink so it can register optional sinks (OTel, TCP log stream) after logging is initialized, without going through `Default()->AddSink()`.
### Motivation
Previously, dynamically adding sinks post-initialization mutated the default logger's internal sink vector directly. This was fragile: cloned loggers (created before `AddSink` was called) would not pick up the new sinks. `BroadcastSink` fixes this by making the sink list a shared, mutable object that all loggers sharing the same broadcast instance observe uniformly.
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- Improvement: Lazy initialize CpuSampler - reduces startup time by ~600 ms
- Bugfix: Don't try to wipe .sentry-native folder at missing manifest - sentry is already running. Reduces startup time by ~450 ms when data folder is empty
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- When build store is not configured, `m_BuildCidStore` is null but was unconditionally added as a stats provider, causing a null pointer dereference crash in `StatsReporter::ReportStats`
- Added a null guard in `AddProvider` to reject null pointers defensively
- Added a conditional check at the call site in `InitializeStructuredCache`
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- Feature: Added `--allow-port-probing` option to control whether zenserver searches for a free port on startup (default: true, automatically false when --dedicated is set)
- Feature: Added new hub options for controlling provisioned storage server instances:
- `--hub-instance-http` - HTTP server implementation for instances (asio/httpsys)
- `--hub-instance-http-threads` - Number of HTTP connection threads per instance
- `--hub-instance-corelimit` - Limit CPU concurrency per instance
- Improvement: Hub now manages a deterministic port pool for provisioned instances allowing reuse of unused ports
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removal (#841)
- Percent-decode URIs in ASIO HTTP server to match http.sys CookedUrl behavior, ensuring consistent decoded paths across backends
- Add Environment field to CreateProcOptions for passing extra env vars to child processes (Windows: merged into Unicode environment block; Unix: setenv in fork)
- Add GetCompilerName() and include it in build options startup logging
- Suppress Windows CRT error dialogs in test harness for headless/CI runs
- Fix mimalloc package: pass CMAKE_BUILD_TYPE, skip cfuncs test for cross-compile
- Add virtual destructor to SentryAssertImpl to fix debug-mode warning
- Simplify object store path handling now that URIs arrive pre-decoded
- Add URI decoding test coverage for percent-encoded paths and query params
- Simplify httpasio request handling by using strands (guarantees no parallel handlers per connection)
- Removed deprecated regex-based route matching support
- Fix full GC never triggering after cross-toolchain builds: The `gc_state` file stores `system_clock` ticks, but the tick resolution differs between toolchains (nanoseconds on GCC/standard clang, microseconds on UE clang). A nanosecond timestamp misinterpreted as microseconds appears far in the future (~year 58,000), bypassing the staleness check and preventing time-based full GC from ever running. Fixed by also resetting when the stored timestamp is in the future.
- Clamp GC countdown display to configured interval: Prevents nonsensical log output (e.g. "Full GC in 492128002h") caused by the above or any other clock anomaly. The clamp applies to both the scheduler log and the status API.
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- Add `--no-network` CLI option which disables all TCP/HTTPS listeners, restricting zenserver to Unix domain socket communication only.
- Also fixes asio upgrade breakage on main
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command line or config
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and add lua option
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- **Frontend dashboard overhaul**: Unified compute/main dashboards into a single shared UI. Added new pages for cache, projects, metrics, sessions, info (build/runtime config, system stats). Added live-update via WebSockets with pause control, sortable detail tables, themed styling. Refactored compute/hub/orchestrator pages into modular JS.
- **HTTP server fixes and stats**: Fixed http.sys local-only fallback when default port is in use, implemented root endpoint redirect for http.sys, fixed Linux/Mac port reuse. Added /stats endpoint exposing HTTP server metrics (bytes transferred, request rates). Added WebSocket stats tracking.
- **OTEL/diagnostics hardening**: Improved OTLP HTTP exporter with better error handling and resilience. Extended diagnostics services configuration.
- **Session management**: Added new sessions service with HTTP endpoints for registering, updating, querying, and removing sessions. Includes session log file support. This is still WIP.
- **CLI subcommand support**: Added support for commands with subcommands in the zen CLI tool, with improved command dispatch.
- **Misc**: Exposed CPU usage/hostname to frontend, fixed JS compact binary float32/float64 decoding, limited projects displayed on front page to 25 sorted by last access, added vscode:// link support.
Also contains some fixes from TSAN analysis.
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- Added local process runners for Linux/Wine, Mac with some sandboxing support
- Horde & Nomad provisioning for development and testing
- Client session queues with lifecycle management (active/draining/cancelled), automatic retry with configurable limits, and manual reschedule API
- Improved web UI for orchestrator, compute, and hub dashboards with WebSocket push updates
- Some security hardening
- Improved scalability and `zen exec` command
Still experimental - compute support is disabled by default
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- zenhttp: added `GetServiceUri()`/`GetExternalHost()`
- enables code to quickly generate an externally reachable URI for a given service
- frontend: improved Uri handling (better defaults)
- added support for 404 page (to make it easier to find a good URL)
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this change adds the `zencompute` component, which can be used to distribute work dispatched from UE using the DDB (Derived Data Build) APIs via zenserver
this change also adds a distinct zenserver compute mode (`zenserver compute`) which is intended to be used for leaf compute nodes
to exercise the compute functionality without directly involving UE, a `zen exec` subcommand is also added, which can be used to feed replays through the system
all new functionality is considered *experimental* and disabled by default at this time, behind the `zencompute` option in xmake config
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made logging config options from zenserver available in zen CLI
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or config
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* add system metrics output to top command
* removed unnecessary xmake directives
* file system API/comment tweaks
* fixed out-of-range access in httpserver test
* updated ZenServer base API to allow customization by mode
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* changed some logging string so they don't get caught in CI logging
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this change adds OTEL tracing to a few places
* Top-level application lifecycle (config/init/cleanup, main loop)
* http.sys requests
it also brings some otlptrace optimizations and dynamic configuration of tracing. OTLP tracing is currently always disabled
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- Improvement: Deeper validation of data when scrub is activated (cas/cache/project)
- Improvement: Enabled more multi threading when running scrub operations
- Improvement: Added means to force a scrub operation at startup with a new release using ZEN_DATA_FORCE_SCRUB_VERSION variable in xmake.lua
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This change removes our dependency on vcpkg for package management, in favour of bringing some code in-tree in the `thirdparty` folder as well as using the xmake build-in package management feature. For the latter, all the package definitions are maintained in the zen repo itself, in the `repo` folder.
It should now also be easier to build the project as it will no longer depend on having the right version of vcpkg installed, which has been a common problem for new people coming in to the codebase. Now you should only need xmake to build.
* Bumps xmake requirement on github runners to 2.9.9 to resolve an issue where xmake on Windows invokes cmake with `v144` toolchain which does not exist
* BLAKE3 is now in-tree at `thirdparty/blake3`
* cpr is now in-tree at `thirdparty/cpr`
* cxxopts is now in-tree at `thirdparty/cxxopts`
* fmt is now in-tree at `thirdparty/fmt`
* robin-map is now in-tree at `thirdparty/robin-map`
* ryml is now in-tree at `thirdparty/ryml`
* sol2 is now in-tree at `thirdparty/sol2`
* spdlog is now in-tree at `thirdparty/spdlog`
* utfcpp is now in-tree at `thirdparty/utfcpp`
* xmake package repo definitions is in `repo`
* implemented support for sanitizers. ASAN is supported on windows, TSAN, UBSAN, MSAN etc are supported on Linux/MacOS though I have not yet tested it extensively on MacOS
* the zencore encryption implementation also now supports using mbedTLS which is used on MacOS, though for now we still use openssl on Linux
* crashpad
* bumps libcurl to 8.11.0 (from 8.8.0) which should address a rare build upload bug
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previously, a null reference would be passed into ProjectStore constructor
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this breaks out the configuration logic to allow multiple applications to share common configuration and initialization logic whilst customizing chosen aspects of the process
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* move all storage-related services into storage tree
* move config into config/
* also move admin service into storage since it mostly has storage related functionality
* header consolidation
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