Add nightly exchange fuzzer. (facebookincubator#8862)

Summary:
This PR adds a nightly fuzzer run for the exchange fuzzer. It runs along with the other scheduled nightly jobs and the failure repros are  saved to artifacts. The job runs for 30 minutes and locally I saw 100 odd iterations.

Pull Request resolved: facebookincubator#8862

Reviewed By: mbasmanova

Differential Revision: D54230287

Pulled By: kgpai

fbshipit-source-id: 31543026678227038b85fc632beb8475fa42db1e

.github/workflows/scheduled.yml

@@ -147,6 +147,13 @@ jobs:
           path: velox/_build/debug/velox/exec/tests/velox_join_fuzzer_test
           retention-days: "${{ env.RETENTION }}"
 
+      - name: Upload exchange fuzzer
+        uses: actions/upload-artifact@v4
+        with:
+          name: exchange
+          path: velox/_build/debug//velox/exec/tests/velox_exchange_fuzzer_test
+          retention-days: "${{ env.RETENTION }}"
+
   linux-presto-fuzzer-run:
     name: "Presto Fuzzer"
     runs-on: ubuntu-latest
@@ -396,3 +403,46 @@ jobs:
           name: join-fuzzer-failure-artifacts
           path: |
             /tmp/join_fuzzer_repro
+
+  linux-exchange-fuzzer-run:
+    runs-on: ubuntu-latest
+    needs: compile
+    timeout-minutes: 120
+    steps:
+
+      - name: Checkout Repo
+        uses: actions/checkout@v4
+        with:
+          ref: "${{ inputs.ref }}"
+
+      - name: Install dependencies
+        run: source ./scripts/setup-ubuntu.sh
+
+      - name: Download exchange fuzzer
+        uses: actions/download-artifact@v4
+        with:
+          name: exchange
+
+      - name: Run exchange Fuzzer
+        run: |
+          sudo sysctl -w vm.max_map_count=67108864
+          cat /proc/sys/vm/max_map_count
+          mkdir -p /tmp/exchange_fuzzer_repro/
+          rm -rfv /tmp/exchange_fuzzer_repro/*
+          chmod -R 777 /tmp/exchange_fuzzer_repro
+          chmod +x velox_exchange_fuzzer_test
+          ./velox_exchange_fuzzer_test \
+                --seed ${RANDOM} \
+                --duration_sec $DURATION \
+                --logtostderr=1 \
+                --minloglevel=0 \
+                --repro_path=/tmp/exchange_fuzzer_repro \
+            && echo -e "\n\Exchange fuzzer run finished successfully."
+
+      - name: Archive Exchange production artifacts
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v4
+        with:
+            name: exchange-fuzzer-failure-artifacts
+            path: |
+              /tmp/exchange_fuzzer_repro

velox/exec/tests/ExchangeFuzzer.cpp

@@ -408,7 +408,7 @@ int main(int argc, char** argv) {
   folly::Init init{&argc, &argv};
   memory::MemoryManagerOptions options;
   options.useMmapAllocator = true;
-  options.allocatorCapacity = 20UL << 30;
+  options.allocatorCapacity = 8UL << 30;
   options.useMmapArena = true;
   options.mmapArenaCapacityRatio = 1;
   memory::MemoryManager::initialize(options);