Hi,
My node.js program crashed and i saw the following in the log:
FATAL ERROR: CALL_AND_RETRY_2 Allocation failed - process out of memory
i reduced the original program to the following tiny self-contained program:
=============================
...
function foo1()
{
var someBadURI = ...;
http.get
(
someBadURI,
function(res)
{
if (res.statusCode != 200)
{
util.log("!!!!! bad ....");
setTimeout(foo1,0);
return;
} ...
}
) ...
}
foo1();
=============================
If i let the program above run long enough (~30 minutes or more), the process
ran out of memory then crashed with the aforementioned error message but it is
not clear to me why:
FATAL ERROR: CALL_AND_RETRY_2 Allocation failed - process out of memory
However, the following program has been running for days without any problem:
=============================
function foo2()
{
util.log("entering foo2");
setTimeout(foo2,0);
util.log("leavinging foo2");
}
foo2();
=============================
Why is that? Should the V8 engine register the event and invoke the
callback/handler constantly with 0-wait setTimeout? Why would it consume a
lot of memory?
My guess is
* memory has been allocated for the http.get call in foo1.
In foo2, there is only log printing which does not really consume any
resource (memory in this case)
* the call
setTimeout(foo,0);
in foo1 always grabs the next tick so the GC never gets a chance to run
Am i way off? i'm unsure if i need to yank in scoped, handle, context, etc.
into my reasoning though for a better description.
Thanks.
--
--
Job Board: http://jobs.nodejs.org/
Posting guidelines:
https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines
You received this message because you are subscribed to the Google
Groups "nodejs" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/nodejs?hl=en?hl=en
---
You received this message because you are subscribed to the Google Groups
"nodejs" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
