Improving Put Performance

Scenario

In the scenario where a large number of requests are continuously put, setting the following two parameters to false can greatly improve the Put performance.

hbase.regionserver.wal.durable.sync

hbase.regionserver.hfile.durable.sync

When the performance is improved, there is a low probability that data is lost if three DataNodes are faulty at the same time. Exercise caution when configuring the parameters in scenarios that have high requirements on data reliability.

Procedure

Navigation path for setting parameters:

Log in to FusionInsight Manager and choose Cluster > Services > HBase. Click Configurations then All Configurations, enter a parameter name in the search box, and change the parameter value.

**Table 1** Parameters for improving put performance
Parameter	Description	Value
hbase.wal.hsync	Specifies whether to enable WAL file durability to make the WAL data persistence on disks. If this parameter is set to true, the performance is affected because each WAL file is synchronized to the disk by the Hadoop fsync.	false
hbase.hfile.hsync	Specifies whether to enable the HFile durability to make data persistence on disks. If this parameter is set to true, the performance is affected because each Hfile file is synchronized to the disk by the Hadoop fsync.	false