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Marc-André Bombeck
d08e2b4e6d
runtime.heap.sampled is written every minute while the heap is above 70 % of its limit, which turned the 500-entry ring behind the admin log page over in hours and pushed out the events an operator opens it for. emitEvent takes a skipMemoryRing option; the sample sets it and still reaches stdout and Loki, while the pressure and snapshot lines go everywhere as before. The snapshot directory was /tmp/healthlog-heap-<pid>, a predictable name (pid 1 in most containers) that mkdirSync accepted when it already existed or was a symlink. It now comes from mkdtempSync and is checked with lstat to be a real directory owned by the process user and closed to others before the snapshot is written.