问题：
第一次往hbase put数据，索引同步三个字段，第二次更新hbase数据，只更新一个字段，其他两个字段会消失。
原因：
在创建Hbase Indexer 时我们配置文件指定了read-row="never"
$ cat morphline-hbase-mapper.xml <?xml version="1.0"?><!-- table：需要索引的HBase表名称--><!-- mapper：用来实现和读取指定的Morphline配置文件类，固定为MorphlineResultToSolrMapper--><indexer table="tableName" mapper="com.ngdata.hbaseindexer.morphline.MorphlineResultToSolrMapper" read-row="never" ><!--param中的name参数用来指定当前配置为morphlineFile文件 --><!--value用来指定morphlines.conf文件的路径，绝对或者相对路径用来指定本地路径，如果是使用Cloudera Manager来管理morphlines.conf就直接写入值morphlines.conf"--><param name="morphlineFile" value="morphlines.conf"/><!--value="ZDTableMap"，这里test3Map是自定义，接下来要使用。其他的mapper,param name等属性默认即可--><param name="morphlineId" value="TableMap"/></indexer>
修改为read-row="dynamic" ，再次测试，发现不会丢失字段
read-row 说明：/NGDATA/hbase-indexer/wiki/Indexer-configuration#read-row
read-row
The read-row attribute has two possible values: dynamic, or never.
This attribute is only important when using row-based indexing. It specifies whether or not the indexer should re-read data from HBase in order to perform indexing.
When set to "dynamic", the indexer will read the necessary data from a row if a partial update to the row is performed in HBase. In dynamic mode, the row will not be re-read if all data needed to perform indexing is included in the row update.
If this attribute is set to never, a row will never be re-read by the indexer.
The default setting is "dynamic".
但可能会遇到以下问题，使用前需要充分的测试
HBase Indexer导致Solr与HBase数据不一致问题解决：
/d6619309/article/details/51579594
