Examples of org.apache.accumulo.server.tabletserver.LargestFirstMemoryManager$TabletInfo

Package org.apache.accumulo.server.tabletserver

Examples of org.apache.accumulo.server.tabletserver.LargestFirstMemoryManager$TabletInfo

org.apache.accumulo.server.tabletserver.LargestFirstMemoryManager
The LargestFirstMemoryManager attempts to keep memory between 80% and 90% full. It adapts over time the point at which it should start a compaction based on how full memory gets between successive calls. It will also flush idle tablets based on a per-table configurable idle time. It will only attempt to flush tablets up to 20% of all memory. And, as the name of the class would suggest, it flushes the tablet with the highest memory footprint. However, it actually chooses the tablet as a function of its size doubled for every 15 minutes of idle time.


    int maxOpenFiles = acuConf.getCount(Property.TSERV_SCAN_MAX_OPENFILES);


    fileManager = new FileManager(conf, fs, maxOpenFiles, _dCache, _iCache);


    memoryManager = Property.createInstanceFromPropertyName(acuConf, Property.TSERV_MEM_MGMT, MemoryManager.class, new LargestFirstMemoryManager());
    memoryManager.init(conf);
    memMgmt = new MemoryManagementFramework();
    memMgmt.startThreads();
  }

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