hadoop资料汇总.pdf
HBase源码分析之HRegion上MemStore的flsuh流程（二）
继上篇《HBase源码分析之HRegion上MemStore的flsuh流程（一）》之后，我们继续分析下HRegion上MemStore flush的核心方法internalFlushcache()，它的主要流程如图所示： 其中，internalFlushcache()方法的代码如下： /** * Flush the memstore. Flushing the memstore is a little tricky. We have a lot of updates in the * memstore, all of which have also been written to the wal. We need to write those updates in the * memstore out to disk, while being able to process reads/writes as much as possible during the * flush operation. * <p>This method may block for som...
