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https://issues.apache.org/jira/browse/SPARK-13183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15148205#comment-15148205
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dylanzhou edited comment on SPARK-13183 at 2/16/16 8:36 AM:
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@Sean Owen maybe is a memory leak problem, and finally will run out of heap
memory error java.lang.OutOfMemoryError:Java for heap space. When I try to
increase driver memory, just streaming programs work a little longer, in my
opinion byte[] objects cannot be reclaimed by the GC.When I increase the amount
of data that flows into Kafka, memory consumption and faster。 Can you give me
some advice? Here is my question, thank you!
http://apache-spark-user-list.1001560.n3.nabble.com/the-memory-leak-problem-of-use-sparkstreamimg-and-sparksql-with-kafka-in-spark-1-4-1-td26231.html
was (Author: dylanzhou):
@Sean Owen maybe is a memory leak problem, and finally will run out of heap
memory error java.lang.OutOfMemoryError:Java for heap space. When I try to
increase driver memory, just streaming programs work a little longer, in my
opinion byte[] objects cannot be reclaimed by the GC. Can you give me some
advice? Here is my question, thank you!
http://apache-spark-user-list.1001560.n3.nabble.com/the-memory-leak-problem-of-use-sparkstreamimg-and-sparksql-with-kafka-in-spark-1-4-1-td26231.html
> Bytebuffers occupy a large amount of heap memory
> ------------------------------------------------
>
> Key: SPARK-13183
> URL: https://issues.apache.org/jira/browse/SPARK-13183
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.4.1
> Reporter: dylanzhou
>
> When I used sparkstreamimg and sparksql, i cache the table,found that old gen
> increases very fast and full GC is very frequent, running for a period of
> time will be out of memory, after analysis of heap memory, found that there
> are a large number of org.apache.spark.sql.columnar.ColumnBuilder[38] @
> 0xd022a0b8, takes up 90% of the space, look at the source is HeapByteBuffer
> occupy, don't know why these objects are not released, had been waiting for
> GC to recycle;if i donot use cache table, there will be no this problem, but
> I need to repeatedly query this table do
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