# OutOfMemoryError in console mode **URL:** \ **Category:** Integrations\ **Tags:** azure, integrations, katalon-studio\ **Created:** [March 27, 2020, 12:53am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559 "2020-03-27T00:53:03Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 27, 2020, 12:53am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/1 "2020-03-27T00:53:03Z")
Hi all, We use Katalon Studio with Runtime Engine License and run it in azure DevOps. My test get `OutOfMemoryError` in azure DevOps pipeline, but I can run it in my local / VM. I saw the solution of changing `katalon.ini` file like as [this](http://http://forum.katalon.com/t/html-reports-taking-hours-to-generate-because-katalon-takes-automatic-screenshots/25936/2)… but I run my test in azure DevOps, so I think I cannot change the ini file in katalon task at the same time, right? Is there any solution? FYI : My test includes comparison of large screenshots. So it show OutOfMemory even if I reduced the number of test cases to run at once. Anyway, it can be run in my local, so I think it is memory problem. Error: ```auto org.codehaus.groovy.runtime.InvokerInvocationException: java.lang.OutOfMemoryError: Java heap space ``` ---
**Author:** ![huynguyen](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/huynguyen/32/552_2.png) [@huynguyen](https://forum.katalon.com/u/huynguyen)\ **Post date:** [March 27, 2020, 4:10pm UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/2 "2020-03-27T16:10:43Z")
Hi @rie.ota, Please define VM arguments to increase heap size as instructed in the document at [https://docs.katalon.com/katalon-studio/docs/execution-settings.html#allow-editing-jvm-parameters-in-execution-settings](https://docs.katalon.com/katalon-studio/docs/execution-settings.html#allow-editing-jvm-parameters-in-execution-settings) ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 12:17am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/3 "2020-03-30T00:17:02Z")
Hi, @huynguyen, I think the feature requires “Katalon Studio Enterprise” license, right? We have KRE but not KSE… I cannot edit Execution \> Launch Arguments setting although I use 7.2.9. Isn’t there another solution? ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 1:48am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/4 "2020-03-30T01:48:13Z")
You do not need KSE license to increase the size of memory allocated for a KRE runtime. On my windows 10 desktop, I installed Katalon Studio (not Enterprize) in `%USER_PROFILE%\Katalon_Studio_Windows_64-7.2.1`. In that directory I find a plain text file named `katalon.ini`. ![katalon.init](https://europe1.discourse-cdn.com/katalon/original/2X/b/b5c3f5994f728fd63cc2720ee8be455da433d3ba.png) In the `katalon.ini` file, I can find a line like ```auto -Xmx2048m ``` This means my test runs with maximum memory for JVM of 2048 Mega bytes. With a plain text editor like VIM or Emacs, I can edit this line to ```auto -Xmx4096m ``` or ```auto -Xmx8192m ``` The appropriate memory size would depend on how much your tests want and how much physical memory size the machine has. @rie.ota You run your test on Azure DevOps. Hopefully you know how to edit the katalon.ini file and configure the machine image on which your tests run. ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 2:20am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/5 "2020-03-30T02:20:52Z")
Hi @kazurayam, and thank you for the easy to understand explanation. I just tried to following procedure and failed with same OutOfMemory…something wrong? log saids `INFO: Total memory: 7167 MB` 1. Run katalon task with “executable tests” (then KRE is installed to the Windows OS on azure DevOps pipeline) 2. Next powershell task : replace “-Xmx2048m” to “-Xmx4096m” in `katalonc.ini` (← KRE use katalonc.ini instead katalon.ini) 3. Run katalon task with pre-installed KRE 4. OutOfMemory ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 2:23am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/6 "2020-03-30T02:23:47Z")
Why not you replace to “-Xmx8192m” instead of “-Xmx4096m”? ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 2:31am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/7 "2020-03-30T02:31:57Z")
sorry for the lack of information… I tried both of “-Xmx8192m” and “-Xmx4096m” ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 2:36am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/8 "2020-03-30T02:36:27Z")
You can try even larger memory size, if the device suffice, for example ```auto -Xmx16400m ``` ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 3:21am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/9 "2020-03-30T03:21:18Z")
In KS, you can monitor the heap status: > [@Heap Memory Issue when try to execute Testsuite collection](http://forum.katalon.com/t/heap-memory-issue-when-try-to-execute-testsuite-collection/40766/3): > > You can also monitor the heap: [image] This will produce a heap status monitor in the KS status bar: [image] You can click the trashcan button to help release memory back to the pool. Also, remember to clear out old runtime logs: [image] Looking at the heap status, you would find how much memory your tests actually require. ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 3:28am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/10 "2020-03-30T03:28:21Z")
> [@rie.ota](#): > > log saids `INFO: Total memory: 7167 MB` In which file you find this info? I have never seen this type of log. ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 3:35am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/11 "2020-03-30T03:35:04Z")
> In KS, you can monitor the heap status: Thank you for the information, I will check it. > In which file you find this info? It is from azure Pipeline. From the beginning of the katalon task in azure Pipeline, I saw the log and I think it is the machine info. ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 4:52am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/12 "2020-03-30T04:52:02Z")
@kazurayam I run my test suite with Heap Memory settings and I got following value. I think it is not big… ![“ss” 2020-03-30 at 13.50.48](https://europe1.discourse-cdn.com/katalon/original/2X/7/75da78c9b4bd3cf39b4d99d6753e8be560e63a87.png) ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 5:06am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/13 "2020-03-30T05:06:02Z")
360M is not big at all. You need to go back to the error log and try to find out at which stage of processing you got the error `org.codehaus.groovy.runtime.InvokerInvocationException: java.lang.OutOfMemoryError: Java heap space`. Could you share the log file here? ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 5:25am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/14 "2020-03-30T05:25:24Z")
@kazurayam Thank you. Actually the test is from yours (Thanks as always) In the part of “ImageDiff\_chronos”. I run my test with big screenshots… My test failed when examining 2.9MB png. (Anyway it succeeds in my local and use only 360M) [stdout.log](https://forum.katalon.com/uploads/short-url/wAW51yLPVEJZiGCIFMWwEJ92ANE.log) (9.5 KB) ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 5:54am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/15 "2020-03-30T05:54:02Z")
Allocating sufficient size of -Xmx\*\*\*\* should resolve this issue. Could you make sure you allocated -Xmx8192m? ---
**Author:** ![rie.ota](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/rie.ota/32/20464_2.png) [@rie.ota](https://forum.katalon.com/u/rie.ota)\ **Post date:** [March 30, 2020, 5:59am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/16 "2020-03-30T05:59:32Z")
> [@kazurayam](#): > > -Xmx16400m You are right, this seems to have been resolved. (Just now, for the first time, it has passed in the pipeline.) Thank you for your kindness!!! ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [March 30, 2020, 6:09am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/18 "2020-03-30T06:09:16Z")
```auto 2020-03-30 03:49:44 - [TEST_CASE][ERROR] - Test Cases/Exam_capture/ImageDiff_chronos_biguser: Test Cases/Exam_capture/ImageDiff_chronos_biguser FAILED. Reason: org.codehaus.groovy.runtime.InvokerInvocationException: java.lang.OutOfMemoryError: Java heap space at com.kazurayam.visualtesting.ImageDiffer.invokeMethod(ImageDiffer.groovy) at com.kms.katalon.core.main.CustomKeywordDelegatingMetaClass.invokeStaticMethod(CustomKeywordDelegatingMetaClass.java:50) at ImageDiff_chronos_biguser.run(ImageDiff_chronos_biguser:13) at com.kms.katalon.core.main.ScriptEngine.run(ScriptEngine.java:194) at com.kms.katalon.core.main.ScriptEngine.runScriptAsRawText(ScriptEngine.java:119) at com.kms.katalon.core.main.TestCaseExecutor.runScript(TestCaseExecutor.java:337) at com.kms.katalon.core.main.TestCaseExecutor.doExecute(TestCaseExecutor.java:328) at com.kms.katalon.core.main.TestCaseExecutor.processExecutionPhase(TestCaseExecutor.java:307) at com.kms.katalon.core.main.TestCaseExecutor.accessMainPhase(TestCaseExecutor.java:299) at com.kms.katalon.core.main.TestCaseExecutor.execute(TestCaseExecutor.java:233) at com.kms.katalon.core.main.TestSuiteExecutor.accessTestCaseMainPhase(TestSuiteExecutor.java:169) at com.kms.katalon.core.main.TestSuiteExecutor.accessTestSuiteMainPhase(TestSuiteExecutor.java:142) at com.kms.katalon.core.main.TestSuiteExecutor.execute(TestSuiteExecutor.java:91) at com.kms.katalon.core.main.TestCaseMain.startTestSuite(TestCaseMain.java:157) at com.kms.katalon.core.main.TestCaseMain$startTestSuite$0.call(Unknown Source) at TempTestSuite1585539994136.run(TempTestSuite1585539994136.groovy:36) Caused by: java.lang.OutOfMemoryError: Java heap space at ru.yandex.qatools.ashot.comparison.PointsMarkupPolicy.addDiffPoint(PointsMarkupPolicy.java:41) at ru.yandex.qatools.ashot.comparison.ImageDiff.addDiffPoint(ImageDiff.java:51) at ru.yandex.qatools.ashot.comparison.ImageDiffer.markDiffPoints(ImageDiffer.java:81) at ru.yandex.qatools.ashot.comparison.ImageDiffer.makeDiff(ImageDiffer.java:57) at ru.yandex.qatools.ashot.comparison.ImageDiffer$makeDiff.call(Unknown Source) at com.kazurayam.materials.imagedifference.ImageDifference.makeImageDiff(ImageDifference.groovy:47) at com.kazurayam.materials.imagedifference.ImageDifference.(ImageDifference.groovy:38) at com.kazurayam.materials.stats.StorageScanner.makeImageDelta(StorageScanner.groovy:391) at com.kazurayam.materials.stats.StorageScanner$makeImageDelta$5.callCurrent(Unknown Source) at com.kazurayam.materials.stats.StorageScanner.makeMaterialStats(StorageScanner.groovy:276) at com.kazurayam.materials.stats.StorageScanner$makeMaterialStats$2.callCurrent(Unknown Source) at com.kazurayam.materials.stats.StorageScanner.makeStatsEntry(StorageScanner.groovy:173) at com.kazurayam.materials.stats.StorageScanner.scan(StorageScanner.groovy:137) at com.kazurayam.materials.stats.StorageScanner$scan$1.call(Unknown Source) ``` This stacktrace impies that the image comparison algorithm of AShot library is NOT designed memory-efficient. It may consume super large heap memory for pixel-wise comparison. — just I guess. All we can do now is to allocate bulky -Xmx\*\*\*\*, I think. ---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [April 1, 2020, 12:59pm UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/19 "2020-04-01T12:59:08Z")
---
**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\ **Post date:** [June 15, 2020, 7:57am UTC](https://forum.katalon.com/t/outofmemoryerror-in-console-mode/41559/20 "2020-06-15T07:57:50Z")
I have found out that the `com.kazurayam.materials.imagedifference.ImageCollectionDiffer` class contained in [the ver 0.74.0 of Materials library](https://github.com/kazurayam/Materials/blob/0.74.0/src/main/groovy/com/kazurayam/materials/imagedifference/ImageCollectionDiffer.groovy) has a bug: a sort of memory-leak. I am sure that this bug caused OutOfMemoryError occured to @rie.ota I will fix this problem soon and release an update. * * * > [@kazurayam](#): > > This stacktrace impies that the image comparison algorithm of AShot library is NOT designed memory-efficient. I was wrong in blaming AShot. Sorry about that. My Groovy code had a bug. * * * I have updated the VisualTestingInKatalonStudio project to the version [1.17.3.](https://github.com/kazurayam/VisualTestingInKatalonStudio/releases/tag/1.17.3). In this version I fixed a OutOfMemoryError: Java Heap Space problem as described at [StorageScanner object uses too large memory for buffering a lot of BufferedImages · Issue #17 · kazurayam/Materials · GitHub](https://github.com/kazurayam/Materials/issues/17) If you have any project using the VisualTestingInKatalonStudio, you can easily update the framework to the latest version. In your project, you have `build.gradle` file, right? You change the `vt.version` as follows: ```auto plugins { id "com.github.kazurayam.visualtestinginks" version "0.1.21" } vt.version = '1.17.3' ``` And in the commandline, you want to do: ```auto $ cd $yourVisualTesingProject $ ./gradlew enableVisualTesting ``` then, all the code and libraries of “VisualTestingInKatalonStudio” will be automatically updated. The change from 1.17.3 requires no changes required to your test case scripts. In the $KatalonStudioInstalledDirectory/katalon.ini file, you specify the maximum heap space allocated to Java VM of Katalon Studio. I would recommend you to write in the `katalon.ini` ```auto -Xms512m -Xmx4096m ```