Details
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Bug
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Resolution: Done
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Major
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8.7
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None
Description
Setting more than 513MB for buffer-service-max-storage-object-size, OOME occurs at org.teiid.common.buffer.impl.BufferFrontedFileStoreCache.initialize().
One of our user needs to set more than 512MB for buffer-service-max-storage-object-size to avoid TEIID30001[1], this limitation becomes a critical issue for them.
Additional Information:
By taking look at the source code[2], if the value of maxStorageObjectSize is more than equals with 536870912, the loop becomes infinit, and will cause OOME.
[1]
TEIID30001 Max block number exceeded by 233,144 21,422,155. Increase the maxStorageObjectSize to support larger storage objects. Alternatively you could make the processor batch size smaller.
[2]teiid/engine/src/main/java/org/teiid/common/buffer/impl/BufferFrontedFileStoreCache.java
===
public static final long MAX_ADDRESSABLE_MEMORY = 1l<<(ADDRESS_BITS+LOG_BLOCK_SIZE);
~~
static final int BLOCK_SIZE = 1 << LOG_BLOCK_SIZE;
~~
public void initialize() throws TeiidComponentException {
~~
List<BlockStore> stores = new ArrayList<BlockStore>();
int size = BLOCK_SIZE;
int files = 32; //this allows us to have 64 terabytes of smaller block sizes
do {
stores.add(new BlockStore(this.storageManager, size, 30, files));
size <<=1;
if (files > 1)
} while ((size>>1) < maxStorageObjectSize);
~~
===