resource-limits.json and topology.json were read with parse errors
folded into an empty map, and written in place with std::fs::write. One
truncated resource-limits.json followed by a single set_limits call
rewrote the file with only that agent's entry, erasing every other
agent's CPU and memory overrides without a log line. topology.json had
the same shape: reconcile rebuilt it from the live set, losing pending
(provisioned, never spawned) names.
- agent_config::read_map / write_map are generic over the stored type.
tool-groups and capabilities behave as before.
- resource_limits::read / effective return an error for an existing but
unreadable file; a missing file is still the empty map. set_limits
fails without writing on such a file, and writes atomically.
- topology: reconcile fails without writing on an unreadable file and
writes atomically. all_agents logs the error and returns no agents,
so a ManageRootAgent holder starts without cross-agent mounts.
Read-path behaviour on an unreadable resource-limits.json, per caller:
- write_dropins (every spawn / swap / WriteDropin): logs the error and
keeps the limits drop-in already under /run; the agent still starts.
With no drop-in yet (first start since boot) it writes the hive
defaults, because no drop-in means an uncapped container.
- render_flake: propagates, so sync_agents (and spawn/rebuild/destroy
jobs) fail. An empty map would give tighter-capped agents the hive
memoryMaxBytes.
- container_view::build_all: logs the error each scan and renders the
rows at the hive defaults (no ContainerView wire change).
- set_resource_limits reply: propagates.
Closes#4731
mara hit this directly: setting an agent's memory cap to "16GB"
fails with 'invalid MemoryMax "16GB": expected a size such as
"8G"...'. Confirmed directly against a running systemd 260
(systemd-run -p MemoryMax=<value>): systemd's own parser accepts a
bare byte count, <digits>B, or <digits> plus exactly one uppercase
K/M/G/T, and rejects both "16GB" (redundant B after a multiplier)
and "16g" (lowercase) with "Invalid argument". So the prior
rejection of "16GB" matched systemd, but is bad UX for input a
human reasonably expects to work.
validate_memory_max now returns the value to store (not just an
ok/err verdict): it accepts 8gb/8Gb/8GB/8g/8G interchangeably and
normalizes all of them to systemd's own 8G form before it is ever
persisted or passed downstream. Also fixes the adjacent bug the same
investigation turned up: the old validator incorrectly accepted
lowercase (8g) even though systemd itself rejects it.
Updated both call sites (server.rs, dashboard/lifecycle_ops.rs) to
use the normalized return value. New test
friendly_size_spellings_normalize_to_systemds_own_form; flipped the
old "8GB should be rejected" assertion, which encoded the
human-hostile behavior this fixes.
Remove or fix broken documentation links that accumulate silently:
- container_view.rs: HiveEnv reference
- forge/mod.rs: READY_TIMEOUT and webhook handler links
- workers/knowledge.rs: webhook handler link
- job_queue/model.rs: Claim::deps and WireNode::data references
- stats/hive_stats.rs: read_skill_breakdown reference
- stores/audit_log.rs: global() reference
- workers/agent_sockets.rs: ambiguous agent_sockets::write reference
- coordinator.rs: systemd.services.<harness> formatting
- resource_limits.rs: ambiguous write/read references
Some broken links were to deleted functions/types; these are replaced
with prose descriptions. Others referenced items outside this crate or
were private; these are replaced with plain text references or qualified
paths as appropriate.
Fixes: #3245
`container_view::build_all` renders every container on every scan, and
each agent's row resolved its limits through `effective()`, which reads
and parses `resource-limits.json` from disk. That is one file read per
agent per scan of a file that is identical for all of them.
Split the resolution in two: `effective_from` takes an already-loaded
map, and `effective` keeps the read-then-resolve shape for the
single-agent callers (`write_dropins`, which runs once per spawn and
rebuild and has no map to hand). `build_all` now loads the map once at
the top — the same treatment `topology::read()` already gets there —
and calls `effective_from` per agent.
No behaviour change: the fallback matrix lives in `resolve`, which both
paths still go through, and its tests are untouched.
The now-redundant `limits_for` is gone; `effective_from` covers its one
caller.
The hive applies one `agentCpuQuota` / `agentMemoryMax` to every
container. That's the right default and the wrong ceiling: a build-heavy
agent needs headroom the other twelve don't, and raising the hive-wide
value to suit it hands that headroom to everyone.
Adds a per-agent override, persisted host-side and resolved per-field
against the hive defaults.
Follows the existing `meta/*.json` pattern (`capabilities.json`,
`tool-groups.json`): a host-side map read by `hive-c0re`, staged and
committed in the meta repo so every change lands in the audit trail.
```json
{ "sock": { "cpu_quota": "400%", "memory_max": "8G" } }
```
Fallback is **per field**, not per agent: an entry with only
`memory_max` leaves that agent on the hive-wide CPU quota. Absent file,
absent agent and absent field all resolve to the hive default, so the
feature is inert until someone opts an agent in.
Unlike the other meta files this one is **not** injected into the
container — a limit is something done *to* an agent, not something it
reads about itself.
```
hivectl agents set-limits sock --cpu-quota 400% --memory-max 8G
hivectl agents set-limits sock --reset
```
Values are validated before they're persisted: they go into a systemd
drop-in verbatim, and a typo there makes the unit fail to *start* —
turning a fat-fingered quota into a container that won't come back.
The command is declarative: each call replaces the agent's whole entry.
That makes a forgotten flag a silent revert, so a bare `set-limits
<name>` is rejected at the clap layer and clearing needs an explicit
`--reset`.
`ContainerView` gains `cpu_quota` / `memory_max`, both always populated:
there's no "unset" state to render, only "same as everyone else". They
reflect what the drop-in *says* — what the next start will enforce — not
a live cgroup reading.
The write goes through `meta::commit_resource_limits` rather than the
bare setter, so it's staged and committed under `META_LOCK`. Writing
without committing would leave the meta working tree dirty for the next
`prepare_deploy` to trip over.
Docs: `persistence.md` (the new meta file, and why it isn't injected),
`tools/hivectl.md` (the prose guide), `tools/hivectl-cli.md`
(regenerated clap dump).
Closes: internal/requests issue 25
