Project Scope and ToDos
- Be able to host a server
- Be able to build node projects
- Be able to handle larger projects
- Be able to run continually
Day 2
Ok, I've got a complicated project here to run npm install on. Let's see if it works.
Ok, so I've got my big project on the Raspberry Pi and NPM install seems to have worked despite throwing a bunch of errors. But now I've got
FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
There is a suggested way forward, let's try it.
I'm going to add this as a command to my package.json.
"start:heavy": "NODE_OPTIONS=--max-old-space-size=16384 npm run start",
Ok, let's give that a try.
Nope, still maxing out. In fact, now it does so immediately. Oh, I see. I've made the allowed use of RAM more than the 8gigs in my Raspberry Pi 4.
Hmmm, still getting FATAL ERROR: Committing semi space failed. Allocation failed - JavaScript heap out of memory.
This seems to be a memory issue. I think I can increase the memory fast by using a USB key as swap space? Let's try that.
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 1 119.2G 0 disk
├─sda1 8:1 1 200M 0 part
└─sda2 8:2 1 119G 0 part /media/zs/BigStick
mmcblk0 179:0 0 29.7G 0 disk
├─mmcblk0p1 179:1 0 2.4G 0 part
├─mmcblk0p2 179:2 0 1K 0 part
├─mmcblk0p5 179:5 0 32M 0 part
├─mmcblk0p6 179:6 0 256M 0 part /boot
└─mmcblk0p7 179:7 0 27.1G 0 part /Ok, I've reformatted my BigStick using the instructions at addictive tips. It worked pretty well so far, but I did have to change the type to Linux Swap which is noted as 82 instead of 83 here.
I rebooted and it looks like, by using free -m I can see I've added about 2 gigs of swap, not the whole stick. Why is that the case?
total used free shared buff/cache available
Mem: 7898 244 7160 35 493 7393
Swap: 2047 0 2047It looks like that's the max using the tools I used. But lets try leaving it here and rerunning my commands.
Well, it definitely used the swap space and I don't think I ever saw it run out of Memory, but it still failed. New error this time though! Let's reproduce here in full:
<--- Last few GCs --->
[3171:0x40cd090] 1578766 ms: Scavenge 2040.1 (2088.9) -> 2039.9 (2088.9) MB, 26.5 / 0.1 ms (average mu = 0.874, current mu = 0.340) external memory pressure
[3171:0x40cd090] 1578831 ms: Scavenge 2039.9 (2088.9) -> 2039.7 (2088.9) MB, 63.4 / 0.1 ms (average mu = 0.874, current mu = 0.340) external memory pressure
[3171:0x40cd090] 1582402 ms: Mark-sweep 2041.7 (2090.6) -> 2026.5 (2085.1) MB, 3102.0 / 2.0 ms (average mu = 0.783, current mu = 0.292) allocation failure GC in old space requested
<--- JS stacktrace --->
FATAL ERROR: NewSpace::Rebalance Allocation failed - JavaScript heap out of memory
AbortedNew error is good!