CF10 Update 14 and possible memory issues

One of my associates is complaining that since I applied the Coldfusion 10 Update 14 we are experiencing memory issues. Has anyone else had issues with Update 14?
Just a System Admin fighting the good fight!

I’ll throw in that even if changing the JVM helped, it would still leave the question open as to whether/why Chad experienced a change in heap usage on solely updating CF.
Chad, really? Nothing else changed? I just find that so odd. I’ve not yet heard about it (or seen it) being an issue. Of course, update 14 did do quite a bit: beyond bug fixes it also updated Tomcat. I would be surprised that that could lead to memory leaks (assuming that’s what this is, if really NOTHING else changed).
What about the database you’re using? Update 14 did change the JDBC drivers for Postgres. Are you using that DBMS?
Just trying to think what else could contribute to this, if indeed nothing else changed for you.
It is possible that something else changed, either in the config or coding (and you didn’t know it), or perhaps in the load against the server (I see that all the time: someone adds a new site, perhaps brought over from another server, and they assume “it doesn’t get much traffic”, but they don’t realize how heavily spiders and bots may hit that newly added site, which could definitely put pressure on the heap whether from increased sessions, caching, and so on.)
Of course, you can always uninstall the update easily, in the same CF Admin page where you install it. That would help you prove if that alone was it. (Just be sure to rebuild the connectors back to the version as per the CF update you would revert to. I don’t think it’s appropriate to run the update 14 connector with an earlier update.)
Finally, FWIW, if you really wanted to go nuts, you could change CF to using Java 8. That’s another thing added in 14: support of 8. But to clear, it does not “change it” for you, so that’s not what happened here. But just as the two Carl’s proposed changing the JVM to see if it “would help”, you could consider moving to Java 8. That’s all the more worth considering if indeed the issue is that something changed in your environment (config/code/load) and you simply do need more heap (in Java 7).
Of course CF will use the same GC you have specified even if you update it to use 8, so you may need to make some changes to see a real impact. But for instance one thing Java 8 does by default is no longer use the permanent generation. That should have no effect on your your observed use of heap. Just saying that 8 is indeed different, and you never know if updating to it could help (or hurt. It’s so new that CF supports it in 10, and only to come in update 3 of 11, that there’s relatively little known experience about the combination.)
Anyway, do let us know if you find more.
/charlie

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KeyRelease event, serial 38, synthetic NO, window 0x3e00001,
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state 0x10, keycode 79 (keysym 0xffb7, KP_7), same_screen YES,
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KeyPress event, serial 38, synthetic NO, window 0x3e00001,
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state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
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KeyRelease event, serial 38, synthetic NO, window 0x3e00001,
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state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
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root 0xe5, subw 0x0, time 206665, (155,-52), root:(866,318),
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XmbLookupString gives 0 bytes:
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PropertyNotify event, serial 38, synthetic NO, window 0x4200001,
atom 0x19a (_NET_WM_ICON_GEOMETRY), time 206807, state PropertyNewValue
KeyRelease event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 206825, (155,-52), root:(866,318),
state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
PropertyNotify event, serial 38, synthetic NO, window 0x4200001,
atom 0x19a (_NET_WM_ICON_GEOMETRY), time 207060, state PropertyNewValue
KeyPress event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 209793, (155,-52), root:(866,318),
state 0x0, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 209801, (155,-52), root:(866,318),
state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyPress event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 209809, (155,-52), root:(866,318),
state 0x10, keycode 79 (keysym 0xffb7, KP_7), same_screen YES,
XLookupString gives 1 bytes: (37) "7"
XmbLookupString gives 1 bytes: (37) "7"
XFilterEvent returns: False
PropertyNotify event, serial 38, synthetic NO, window 0x4200001,
atom 0x19a (_NET_WM_ICON_GEOMETRY), time 209824, state PropertyNewValue
KeyRelease event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 209849, (155,-52), root:(866,318),
state 0x10, keycode 79 (keysym 0xffb7, KP_7), same_screen YES,
XLookupString gives 1 bytes: (37) "7"
XFilterEvent returns: False
KeyPress event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 209857, (155,-52), root:(866,318),
state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 38, synthetic NO, window 0x4200001,
root 0xe5, subw 0x0, time 210017, (155,-52), root:(866,318),
state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
PropertyNotify event, serial 38, synthetic NO, window 0x4200001,
atom 0x19a (_NET_WM_ICON_GEOMETRY), time 210070, state PropertyNewValue
This problem is only limited to X. Under other TTYs it's working as expected, so the device is doing its job. Under X, I've tried Gnome and XFCE, both with the keyboard debouncing options turned off.
The issue does not appear if both the host and the device has numlock on. In that case the numpad would only send the pressed keys without numlock toggles, and no matter how fast I tap it gets picked up. It appears that only the numlock key triggers debouncing behavior.
What is messing with my keys and how do I turn it off?
Last edited by Balto (2015-02-08 07:38:30)

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