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Im a newbie in nodejs and mongodb. I have a problem when i read about 100000 records from my mongodb in nodejs application. When I try to get 100000 records, I got this error:
FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory
I search google and everyone said that configure max old space size parameter because v8 engine have about 1,9Gb heap memmory.
My point is, I run my app by eclispe, and i dont know how to configure max-old-space-size parameter.
Can anybody give a hint?
Thank you so much!
ps: my english is bad so if you cannot understand my question, it's fine.
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If you want to increase the max memory for Node you can use --max_old_space_size option. You should set this with NODE_OPTIONS environment variable.
Currently, by default v8 has a memory limit of 512mb on 32-bit and 1gb on 64-bit systems. You can raise the limit by setting --max-old-space-size to a maximum of ~1gb for 32-bit and ~1.7gb for 64-bit systems.
To fix JavaScript heap out of memory error, you need to add the --max-old-space-size option when running your npm command. Alternatively, you can also set the memory limit for your entire environment using a configuration file.
Use node --max_old_space_size=5000 yourapp.js to allow 5000 mb. Look in your eclipse launch settings for command-line parameters, where you can add this.
However, as the comments say, you should reconsider loading this into memory, and stream it to the client instead.
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