应用错误收集

我有一个包含1MB blob的表。

CREATE TABLE blobs_1（关键文字，版本bigint， chunk int， object_blob blob， object_size int， PRIMARY KEY（键，版本，块））

每个吊球分布在约100个大块上。以下查询导致OutOfMemory错误：

从blobs_1中选择object_size，其中key ='key1'且version = 1;

这是错误：

java.lang.OutOfMemoryError：Java堆空间在org.apache.cassandra.io.util.RandomAccessReader.readBytes（RandomAccessReader.java:344）在org.apache.cassandra.utils.ByteBufferUtil.read（ByteBufferUtil.java:392）在org.apache.cassandra.utils.ByteBufferUtil.readWithLength（ByteBufferUtil.java:355）在org.apache.cassandra.db.ColumnSerializer.deserializeColumnBody（ColumnSerializer.java:124） at org.apache.cassandra.db.OnDiskAtom $ Serializer.deserializeFromSSTable（OnDiskAtom.java:85）在org.apache.cassandra.db.Column $ 1.computeNext（Column.java:75）在org.apache.cassandra.db.Column $ 1.computeNext（Column.java:64）在com.google.common.collect.AbstractIterator.tryToComputeNext（AbstractIterator.java:143）在com.google.common.collect.AbstractIterator.hasNext（AbstractIterator.java:138）在org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext（SimpleSliceReader.java:88）在org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext（SimpleSliceReader.java:37）在com.google.common.collect.AbstractIterator.tryToComputeNext（AbstractIterator.java:143）在com.google.common.collect.AbstractIterator.hasNext（AbstractIterator.java:138）在org.apache.cassandra.db.columniterator.SSTableSliceIterator.hasNext（SSTableSliceIterator.java:82）在org.apache.cassandra.db.columniterator.LazyColumnIterator.computeNext（LazyColumnIterator.java:82）在org.apache.cassandra.db.columniterator.LazyColumnIterator.computeNext（LazyColumnIterator.java:59）在com.google.common.collect.AbstractIterator.tryToComputeNext（AbstractIterator.java:143）在com.google.common.collect.AbstractIterator.hasNext（AbstractIterator.java:138）在org.apache.cassandra.db.filter.QueryFilter $ 2.getNext（QueryFilter.java:157）在org.apache.cassandra.db.filter.QueryFilter $ 2.hasNext（QueryFilter.java:140）在org.apache.cassandra.utils.MergeIterator $ Candidate.advance（MergeIterator.java:144）在org.apache.cassandra.utils.MergeIterator $ ManyToOne.advance（MergeIterator.java:123）在org.apache.cassandra.utils.MergeIterator $ ManyToOne.computeNext（MergeIterator.java:97）在com.google.common.collect.AbstractIterator.tryToComputeNext（AbstractIterator.java:143）在com.google.common.collect.AbstractIterator.hasNext（AbstractIterator.java:138）在org.apache.cassandra.db.filter.SliceQueryFilter.collectReducedColumns（SliceQueryFilter.java:185）在org.apache.cassandra.db.filter.QueryFilter.collateColumns（QueryFilter.java:122）在org.apache.cassandra.db.filter.QueryFilter.collateOnDiskAtom（QueryFilter.java:80）在org.apache.cassandra.db.RowIteratorFactory $ 2.getReduced（RowIteratorFactory.java:101）在org.apache.cassandra.db.RowIteratorFactory $ 2.getReduced（RowIteratorFactory.java:75）在org.apache.cassandra.utils.MergeIterator $ ManyToOne.consume（MergeIterator.java:115）在org.apache.cassandra.utils.MergeIterator $ ManyToOne.computeNext（MergeIterator.java:98）

范围查询期间的Cassandra OutOfMemoryError

2 个答案: