<--- Last few GCs ---> [7240:0x2bf08000] 1122 ms: Mark-Compact 135.7 (155.5) -> 121.9 (157.3) MB, pooled: 0 MB, 63.03 / 0.00 ms (average mu = 0.138, current mu = 0.073) allocation failure; scavenge might not succeed [7240:0x2bf08000] 1194 ms: Mark-Compact 137.6 (157.3) -> 123.8 (159.3) MB, pooled: 0 MB, 66.48 / 0.00 ms (average mu = 0.105, current mu = 0.070) allocation failure; scavenge might not succeed <--- JS stacktrace ---> FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory ----- Native stack trace ----- 1: 0xe42d60 node::OOMErrorHandler(char const*, v8::OOMDetails const&) [node] 2: 0x121ded0 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node] 3: 0x121e1a7 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node] 4: 0x144d015 [node] 5: 0x144d043 [node] 6: 0x146611a [node] 7: 0x14692e8 [node] 8: 0x1cd07a1 [node]