# Raw reflection creation failed on dremio build 3.1

**URL:** <https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341>\
**Category:** Uncategorized\
**Created:** [May 13, 2019, 9:56am UTC](https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341 "2019-05-13T09:56:57Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![marvinwu](https://avatars.discourse-cdn.com/v4/letter/m/b77776/32.png) [@marvinwu](https://community.dremio.com/u/marvinwu)\
**Post date:** [May 13, 2019, 9:56am UTC](https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341/1 "2019-05-13T09:56:57Z")

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Hello,

I am trying to create a simple raw reflections from a s3 partitioned dataset, but the foot print says " \*\*Reflection can not accelerate. 1 refresh jobs attempts failed, will reattempt"

also a bunch of errors in the server log

2019-05-13 17:47:24,602 [e3 - 2326c2d4-3bee-9157-ebb6-b383f9e9e200:frag:1:2] ERROR c.d.s.exec.fragment.FragmentExecutor - NoClassDefFoundError: Could not initialize class com.yahoo.memory.WritableMemoryImpl  
com.dremio.common.exceptions.UserException: NoClassDefFoundError: Could not initialize class com.yahoo.memory.WritableMemoryImpl  
at com.dremio.common.exceptions.UserException$Builder.build(UserException.java:746) ~[dremio-common-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor.retire(FragmentExecutor.java:443) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor.finishRun(FragmentExecutor.java:376) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor.run(FragmentExecutor.java:284) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor.access$1000(FragmentExecutor.java:93) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor$AsyncTaskImpl.run(FragmentExecutor.java:619) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.task.AsyncTaskWrapper.run(AsyncTaskWrapper.java:103) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.task.slicing.SlicingThread.mainExecutionLoop(SlicingThread.java:123) ~[dremio-extra-sabot-scheduler-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.task.slicing.SlicingThread.run(SlicingThread.java:68) ~[dremio-extra-sabot-scheduler-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
Caused by: java.lang.RuntimeException: java.lang.NoClassDefFoundError: Could not initialize class com.yahoo.memory.WritableMemoryImpl  
at com.dremio.common.DeferredException.addThrowable(DeferredException.java:100) ~[dremio-common-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor.transitionToFailed(FragmentExecutor.java:478) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
at com.dremio.sabot.exec.fragment.FragmentExecutor.run(FragmentExecutor.java:280) ~[dremio-sabot-kernel-3.1.11-201904261857420193-c674472.jar:3.1.11-201904261857420193-c674472]  
… 5 common frames omitted

I am using the dremio Community Edition 3.1.11-201904261857420193-c674472, any suggests I could try to be able to fix it ?

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**Author:** ![ben](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/ben/32/1367_2.png) [@ben](https://community.dremio.com/u/ben)\
**Post date:** [May 13, 2019, 2:59pm UTC](https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341/2 "2019-05-13T14:59:45Z")

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Hello @marvinwu,

Could you share the profile for the failed job?

> **[How To Share A Query Profile](https://www.dremio.com/tutorials/share-query-profile-dremio/)**
>
> Tutorial explaining how to share a query profile in Dremio.

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<div class="post-metadata">

**Author:** ![marvinwu](https://avatars.discourse-cdn.com/v4/letter/m/b77776/32.png) [@marvinwu](https://community.dremio.com/u/marvinwu)\
**Post date:** [May 14, 2019, 7:57am UTC](https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341/3 "2019-05-14T07:57:51Z")

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Hello @ben,

sure, I have attached the profiles below

[2596b4c5-7676-4cbb-a3a7-5dcfc2380bdd.zip](https://us1.discourse-cdn.com/flex020/uploads/dremio/original/2X/f/f5f1f72c523113fc5ba6cd554949546611889499.zip) (3.2 KB)

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<div class="post-metadata">

**Author:** ![ben](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/ben/32/1367_2.png) [@ben](https://community.dremio.com/u/ben)\
**Post date:** [May 15, 2019, 3:51pm UTC](https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341/4 "2019-05-15T15:51:32Z")

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@marvinwu, this is the `LOAD MATERIALIZATION METADATA` job. Can you tru and find the `REFRESH REFLECTION` job?

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<div class="post-metadata">

**Author:** ![marvinwu](https://avatars.discourse-cdn.com/v4/letter/m/b77776/32.png) [@marvinwu](https://community.dremio.com/u/marvinwu)\
**Post date:** [May 16, 2019, 2:33am UTC](https://community.dremio.com/t/raw-reflection-creation-failed-on-dremio-build-3-1/3341/5 "2019-05-16T02:33:44Z")

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@ben, sure will try to do that