fix: update beacon max-old-space-size to 8192 (ChainSafe#6343)

* feat: increase default memory limit to 8GB

* Revise comments

Dockerfile

@@ -39,9 +39,9 @@ FROM node:20-alpine
 WORKDIR /usr/app
 COPY --from=build_deps /usr/app .
 
-# NodeJS applications have a default memory limit of 2.5GB.
-# This limit is bit tight for a Prater node, it is recommended to raise the limit
+# NodeJS applications have a default memory limit of 4GB on most machines.
+# This limit is bit tight for a Mainnet node, it is recommended to raise the limit
 # since memory may spike during certain network conditions.
-ENV NODE_OPTIONS=--max-old-space-size=4096
+ENV NODE_OPTIONS=--max-old-space-size=8192
 
 ENTRYPOINT ["node", "./packages/cli/bin/lodestar"]

docker-compose.yml

@@ -11,11 +11,11 @@ services:
       - "9000:9000" # P2P port
     #  - "9596:9596" # REST API port
     command: beacon --dataDir /data --rest --rest.address 0.0.0.0 --metrics --logFile /logs/beacon.log --logFileLevel debug --logFileDailyRotate 5
-    # NodeJS applications have a default memory limit of 2.5GB.
-    # This limit is bit tight for a Prater node, it is recommended to raise the limit
+    # NodeJS applications have a default memory limit of 4GB on most machines.
+    # This limit is bit tight for a Mainnet node, it is recommended to raise the limit
     # since memory may spike during certain network conditions.
     environment:
-      NODE_OPTIONS: --max-old-space-size=4096
+      NODE_OPTIONS: --max-old-space-size=8192
 
   prometheus:
     build: docker/prometheus

docs/pages/tools/flamegraphs.md

@@ -18,7 +18,7 @@ Next we need to update the Lodestar service by modifying the start script. We ne
 ```sh
 node \
   --perf-basic-prof \
-  --max-old-space-size=4096 \
+  --max-old-space-size=8192 \
   /usr/src/lodestar/packages/cli/bin/lodestar \
   beacon \
   --rcConfig /home/devops/beacon/rcconfig.yml

lodestar

@@ -2,6 +2,6 @@
 
 # Convenience script to run the lodestar binary from built source
 #
-# ./lodestar.sh beacon --network prater
+# ./lodestar.sh beacon --network mainnet
 
-node --trace-deprecation --max-old-space-size=4096 ./packages/cli/bin/lodestar.js "$@"
+node --trace-deprecation --max-old-space-size=8192 ./packages/cli/bin/lodestar.js "$@"