[ https://issues.apache.org/jira/browse/SPARK-13183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
dylanzhou updated SPARK-13183: ------------------------------ Description: 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 was: When I used sparkstreamimg and sparksql, 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 Component/s: SQL > 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 -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org