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* fix(lbug): guard read queries against runaway native memory (#3696) A single impact query was reported to allocate ~184 GB of native heap on a 66k-symbol index. That memory is outside the buffer pool and V8, so neither bufferManagerSize nor --max-old-space-size bounds it, and the Node binding cannot interrupt a running query. - Add a process-wide memory guard around every pooled read query. While a query runs it samples RSS every 200 ms and, on macOS, the physical footprint for queries running over 1 s (RSS excludes compressed and swapped pages there). Past the budget it names the running queries on stderr and exits with code 70 instead of letting the host run out of memory. GITNEXUS_QUERY_MAX_RSS_MB sets the limit (0 disables); the default is max(8 GiB, 25% of RAM). - Add GITNEXUS_QUERY_TRACE=1: one stderr line per query with duration, rows and memory, so a reporter can identify the query that blows up. - Cap the impact BFS frontier query at 100k rows per depth level. A capped level stops the walk, marks the result partial, and cannot report a LOW/MEDIUM risk. * fix(ci): initialize shards after fork approval GitHub approval increments the attempt number without running any jobs. Allow initial timing snapshot creation on attempt 2 only when the first attempt required approval and had zero jobs. Keep real retries fail-closed on missing frozen input. * fix(impact): qualify both capped risk scores Apply the same conservative cap policy to risk and riskSharedAxes, retain proven high warnings, and strengthen frontier-limit regression assertions. Correct the memory-budget test description. * fix: skip query phases after deadline --------- Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com> |
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