HBase的缓存策略可以通过调整一些参数来进行优化
<property>
<name>hbase.regionserver.blockcache.size</name>
<value>YOUR_DESIRED_SIZE</value>
<description>Size of the BlockCache in bytes. Default is 1073741824 (1GB).</description>
</property>
将YOUR_DESIRED_SIZE
替换为您希望设置的BlockCache大小,单位可以是字节、千字节(KB)、兆字节(MB)或吉字节(GB)。
<!-- Row Key Bloom Filter -->
<property>
<name>hbase.regionserver.rowkey.bloom.block.type</name>
<value>ROWKEY_BLOOM_BLOCK</value>
<description>Type of Bloom filter to use for row keys. Options are NONE, ROWKEY_BLOOM_BLOCK, and COLUMN_BLOOM_BLOCK.</description>
</property>
<property>
<name>hbase.regionserver.rowkey.bloom.rowcol.ratio</name>
<value>DEFAULT_ROWKEY_BLOOM_ROWCOL_RATIO</value>
<description>The ratio of rows to columns for row key Bloom filters. Default is 0.95.</description>
</property>
<!-- Column Family Bloom Filter -->
<property>
<name>hbase.hstore.bloom.block.type</name>
<value>COLUMN_BLOOM_BLOCK</value>
<description>Type of Bloom filter to use for column families. Options are NONE, COLUMN_BLOOM_BLOCK, and ROWKEY_BLOOM_BLOCK.</description>
</property>
<property>
<name>hbase.hstore.bloom.rowcol.ratio</name>
<value>DEFAULT_COLUMN_BLOOM_ROWCOL_RATIO</value>
<description>The ratio of rows to columns for column family Bloom filters. Default is 0.95.</description>
</property>
<property>
<name>hbase.regionserver.global.memstore.size</name>
<value>YOUR_DESIRED_SIZE</value>
<description>Total size of the MemStore in bytes. Default is 1073741824 (1GB). This value should be less than or equal to the total heap size minus the block cache size.</description>
</property>
将YOUR_DESIRED_SIZE
替换为您希望设置的MemStore大小,单位可以是字节、千字节(KB)、兆字节(MB)或吉字节(GB)。
<property>
<name>hbase.regionserver.compression.algorithm</name>
<value>YOUR_DESIRED_ALGORITHM</value>
<description>Compression algorithm to use. Options are SNAPPY, LZO, GZIP, and none.</description>
</property>
将YOUR_DESIRED_ALGORITHM
替换为您希望使用的压缩算法。
请注意,在调整这些参数时,建议您根据实际应用场景和硬件资源进行调整,并在调整后观察HBase的性能表现,以便找到最佳的配置。