需求：phoenix查询很慢的时候需要创建索引

问题：

CREATE INDEX iupt ON webmagic_n.ENVIRONMENTAL_STATION_DATA2(update_time DESC) ;

错误：

Error: ERROR 1029 (42Y88): Mutable secondary indexes must have the hbase.regionserver.wal.codec property set to org.apache.hadoop.hbase.regionserver.wal.IndexedWALEditCodec in the hbase-sites.xml of every region server. tableName=IUPT (state=42Y88,code=1029)

java.sql.SQLException: ERROR 1029 (42Y88): Mutable secondary indexes must have the hbase.regionserver.wal.codec property set to org.apache.hadoop.hbase.regionserver.wal.IndexedWALEditCodec in the hbase-sites.xml of every region server. tableName=IUPT

at org.apache.phoenix.exception.SQLExceptionCode$Factory$1.newException(SQLExceptionCode.java:454)

at org.apache.phoenix.exception.SQLExceptionInfo.buildException(SQLExceptionInfo.java:145)

at org.apache.phoenix.schema.MetaDataClient.createIndex(MetaDataClient.java:1272)

at org.apache.phoenix.compile.CreateIndexCompiler$1.execute(CreateIndexCompiler.java:85)

at org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:359)

at org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:347)

at org.apache.phoenix.call.CallRunner.run(CallRunner.java:53)

at org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:345)

at org.apache.phoenix.jdbc.PhoenixStatement.execute(PhoenixStatement.java:1474)

at sqlline.Commands.execute(Commands.java:822)

at sqlline.Commands.sql(Commands.java:732)

at sqlline.SqlLine.dispatch(SqlLine.java:807)

at sqlline.SqlLine.begin(SqlLine.java:681)

at sqlline.SqlLine.start(SqlLine.java:398)

at sqlline.SqlLine.main(SqlLine.java:292)

解决方法：

<property>   <name>hbase.regionserver.wal.codec</name>   <value>org.apache.hadoop.hbase.regionserver

登录cdh，点组件hbase，点击配置，查找hbase-site.xml

增强最后一句，重启hbase....

这种方式创建索引，会自动更新下。