HBase Read PathLatency are more stable. ## ReadRawCells / ResponseCells |☑|region server|memstore size (MB)|storefile size (MB)|read qps|get qps|write qps|read capacity (units/sec)|write capacity (units/sec)|response "starttimemps": 1538399143265 } ## ReadRawCells / ResponseCells |☑|region server|memstore size (MB)|storefile size (MB)|read qps|get qps|write qps|read capacity (units/sec)|write capacity (units/sec)|response 30077 = 13234☐ region server memstore size (MB) storefile size (MB) read qps get qps write qps read capacity (units/sec) write 0 码力 | 38 页 | 970.76 KB | 2 年前3 HBase最佳实践及优化value $ \rangle $ : cf1 : c1 : t1 : $ \times $ 00 = Same Storage Requirements StoreFile "cf1/1234" StoreFile "cf2/5678" ## Key粒度及性能 ![Image](/uploads/documents/a/2/ Compaction - 检测：通过HBase管理页面查看CompactionQueue长度以及Region中StoreFile的个数，如果CompactionQueue队列长度过长（如>10）或增长过快，则需要考虑调整Compaction参数 - 注意查看Region以及StoreFile的大小，确认是否因为太多过小文件的原因导致文件数目多。如是，需要检查内存使用及设置 • 主要参数 - hbase Replica • 使用Bloom Filter • Filter等过滤结果数据 • Block cache大小 - 查看cache命中率 - StoreFile过多，影响查找效率，手工Compact – 相比单个文件，10个StoreFile文件性能下降约50%—100% • 本地化读写太差，网络IO消耗严重 ## HBase客户端性能优化 - 使用批量数据处理接口 - 保持2MB的Chunk0 码力 | 45 页 | 4.33 MB | 2 年前3 The Servo Book - 0.0.1ofile-certificate.p7b", "signAlg": "SHA256withECDSA", "storeFile": "/path/to/java-keystore-file.p12" } } Hereis a hexadecimal file with the same structure as the `signingConfig` property given above, but with `certPath`, `storeFile` and `profile` given as paths relative to the `json` file, instead of absolute paths. ## Building 0 码力 | 107 页 | 2.48 MB | 7 月前3 HBase基本介绍IndexFile Info Bloom filter metadata (interpreted by StoreFile) Trailer Trailer fields Version 0 码力 | 33 页 | 4.86 MB | 2 年前3
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