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https://issues.apache.org/jira/browse/TEZ-4135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17079107#comment-17079107
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László Bodor commented on TEZ-4135:
-----------------------------------
needed ConfigurableCodecForTest which extends Configurable, otherwise,
production code fails for the mock:
{code}
2020-04-09 11:23:23,381 INFO [main] compress.CodecPool
(CodecPool.java:getDecompressor(184)) - Got brand-new decompressor [null]
java.io.IOException: java.lang.ClassCastException:
org.apache.hadoop.io.compress.CompressionCodec$$EnhancerByMockitoWithCGLIB$$1657e35e
cannot be cast to org.apache.hadoop.conf.Configurable
{code}
I guess this is because [CompressionCodec doesn't extend
Configurable|https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressionCodec.java]
interface, but specific compression classes [implement
it|https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/SnappyCodec.java]
> Improve memory allocation when executing in-memory reads
> --------------------------------------------------------
>
> Key: TEZ-4135
> URL: https://issues.apache.org/jira/browse/TEZ-4135
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: László Bodor
> Priority: Major
> Attachments: Screenshot 2020-03-16 at 6.34.42 PM.jpg,
> TEZ-4135.01.patch, TEZ-4135.02.patch
>
>
> !Screenshot 2020-03-16 at 6.34.42 PM.jpg|width=824,height=575!
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