# GC overhead limit exceeded

**URL:** <https://forum.cloverdx.com/t/gc-overhead-limit-exceeded/2084>\
**Category:** CloverDX Platform\
**Created:** [April 6, 2020, 12:00am UTC](https://forum.cloverdx.com/t/gc-overhead-limit-exceeded/2084 "2020-04-06T00:00:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![av686165](https://avatars.discourse-cdn.com/v4/letter/a/9e8a1a/32.png) [@av686165](https://forum.cloverdx.com/u/av686165)\
**Post date:** [April 6, 2020, 12:00am UTC](https://forum.cloverdx.com/t/gc-overhead-limit-exceeded/2084/1 "2020-04-06T00:00:00Z")

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I am getting below error while running my graph,  
Heap memory (initial/used/max): 128 MB/184 MB/569 MB  
Non-heap memory (initial/used): 2 MB/123 MB  
Exception in thread “scheduledExecutor-5” java.lang.OutOfMemoryError: GC overhead limit exceeded  
Exception in thread “scheduledExecutor-6” java.lang.OutOfMemoryError: GC overhead limit exceeded

Please let me know how to fix it?

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**Author:** ![Vladimir\_Barton](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.cloverdx.com/vladimir_barton/32/167_2.png) [@Vladimir\_Barton](https://forum.cloverdx.com/u/Vladimir_Barton)\
**Post date:** [April 8, 2020, 7:39am UTC](https://forum.cloverdx.com/t/gc-overhead-limit-exceeded/2084/2 "2020-04-08T07:39:36Z")

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Hi,  
please refer to this post where we already discussed the “GC overhead limit exceeded” topic before:

[viewtopic.php?f=4&t=7862](http://forum.cloverdx.com/viewtopic.php?f=4&t=7862)

If you continued having issue even after increasing the maximum heap size limit, feel free to get back to us.

Kind regards,

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**Author:** ![av686165](https://avatars.discourse-cdn.com/v4/letter/a/9e8a1a/32.png) [@av686165](https://forum.cloverdx.com/u/av686165)\
**Post date:** [April 16, 2020, 11:32am UTC](https://forum.cloverdx.com/t/gc-overhead-limit-exceeded/2084/3 "2020-04-16T11:32:35Z")

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Thanks Vladimir. I have fixed the “GC overhead limit exceeded” issue. But now I am getting below error,

“Could not get sandbox code. Cannot connect to server at https//localhost:54461/clover. Read time out.”

Note - I am comparing two .csv files and each files contain 5447428 records. The max heap size has been increased to 5000 MB.

Please advise.

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<div class="post-metadata">

**Author:** ![Vladimir\_Barton](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.cloverdx.com/vladimir_barton/32/167_2.png) [@Vladimir\_Barton](https://forum.cloverdx.com/u/Vladimir_Barton)\
**Post date:** [May 19, 2020, 1:54pm UTC](https://forum.cloverdx.com/t/gc-overhead-limit-exceeded/2084/4 "2020-05-19T13:54:45Z")

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Hi,  
before jumping into conclusions, I would like to inspect the behind-the-scenes information of the Designer. Please provide me with CloverDX Designer log files called “CloverDX.log” and “.log” that are both located in the .metadata directory within your workspace.  
Best regards,