table store提示“ Validate PK size fail”

使用javasdk，确认配置的是2个主键，rid和admads,不知道为啥会报一个5···3···的错误。

Caused by: com.alicloud.openservices.tablestore.TableStoreException: Validate PK size fail. Input: 5, Meta: 3.
	at com.alicloud.openservices.tablestore.core.http.ErrorResponseHandler.handle(ErrorResponseHandler.java:56)
	at com.alicloud.openservices.tablestore.core.http.ResponseConsumer.getResponseContentWithMeta(ResponseConsumer.java:95)
	at com.alicloud.openservices.tablestore.core.http.GetRangeResponseConsumer.parseResult(GetRangeResponseConsumer.java:21)
	at com.alicloud.openservices.tablestore.core.http.GetRangeResponseConsumer.parseResult(GetRangeResponseConsumer.java:11)
	at com.alicloud.openservices.tablestore.core.http.ResponseConsumer.buildResult(ResponseConsumer.java:74)
	at com.aliyun.ots.thirdparty.org.apache.nio.protocol.AbstractAsyncResponseConsumer.responseCompleted(AbstractAsyncResponseConsumer.java:150)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.client.MainClientExec.responseCompleted(MainClientExec.java:418)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.client.DefaultClientExchangeHandlerImpl.responseCompleted(DefaultClientExchangeHandlerImpl.java:164)
	at com.aliyun.ots.thirdparty.org.apache.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:355)
	at com.aliyun.ots.thirdparty.org.apache.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:242)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.client.LoggingAsyncRequestExecutor.inputReady(LoggingAsyncRequestExecutor.java:87)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:264)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:73)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:37)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:113)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:159)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:338)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:316)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:277)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:105)
	at com.aliyun.ots.thirdparty.org.apache.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:584)