fx19880617 opened a new issue #5610:
URL: https://github.com/apache/incubator-pinot/issues/5610
Experiencing OOM issue of querying `SELECT * FROM myTable` after upgrade:
@siddharthteotia
```
Caused by: java.lang.OutOfMemoryError: Direct buffer memory
at java.nio.Bits.reserveMemory(Bits.java:694) ~[?:1.8.0_252]
at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
~[?:1.8.0_252]
at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
~[?:1.8.0_252]
at
org.apache.pinot.core.io.reader.impl.ChunkReaderContext.<init>(ChunkReaderContext.java:38)
~[pinot-all-0.5.0-SNAPSHOT-jar-with-dependencies.jar:0.5.0-SNAPSHOT-01cdc55f514b10bee2d8108d9736d4b57c48b517]
at
org.apache.pinot.core.io.reader.impl.v1.VarByteChunkSingleValueReader.createContext(VarByteChunkSingleValueReader.java:93)
~[pinot-all-0.5.0-SNAPSHOT-jar-with-dependencies.jar:0.5.0-SNAPSHOT-01cdc55f514b10bee2d8108d9736d4b57c48b517]
at
org.apache.pinot.core.io.reader.impl.v1.VarByteChunkSingleValueReader.createContext(VarByteChunkSingleValueReader.java:32)
~[pinot-all-0.5.0-SNAPSHOT-jar-with-dependencies.jar:0.5.0-SNAPSHOT-01cdc55f514b10bee2d8108d9736d4b57c48b517]
at
org.apache.pinot.core.operator.docvalsets.SingleValueSet.<init>(SingleValueSet.java:35)
~[pinot-all-0.5.0-SNAPSHOT-jar-with-dependencies.jar:0.5.0-SNAPSHOT-01cdc55f514b10bee2d8108d9736d4b57c48b517]
at
org.apache.pinot.core.operator.blocks.SingleValueBlock.<init>(SingleValueBlock.java:41)
~[pinot-all-0.5.0-SNAPSHOT-jar-with-dependencies.jar:0.5.0-SNAPSHOT-01cdc55f514b10bee2d8108d9736d4b57c48b517]
at
org.apache.pinot.core.segment.index.datasource.BaseDataSource.getNextBlock(BaseDataSource.java:105)
~[pinot-all-0.5.0-SNAPSHOT-jar-with-dependencies.jar:0.5.0-SNAPSHOT-01cdc55f514b10bee2d8108d9736d4b57c48b517]
```
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