Google大查询流数据错误

Question

我使用(请看这里)将我们的数据存储日志加载到大查询( big )，并将数据存储实体导出到大查询中，但是我仍然坚持将数据流到大查询。错误在BigQueryIngester.java中指向的相关行：

response = bigquery.tabledata().insertAll(projectId, datasetId, tableId, content).execute();

这是一个NullPointerException，我不知道是怎么回事。有人能给我个提示吗？

Uncaught exception from servlet java.lang.NullPointerException  at
 com.fasterxml.jackson.core.json.UTF8JsonGenerator._writeFieldName(UTF8JsonGenerator.java:289)
    at
 com.fasterxml.jackson.core.json.UTF8JsonGenerator.writeFieldName(UTF8JsonGenerator.java:179)
    at
 com.google.api.client.json.jackson2.JacksonGenerator.writeFieldName(JacksonGenerator.java:73)
    at
 com.google.api.client.json.JsonGenerator.serialize(JsonGenerator.java:171)
    at
 com.google.api.client.json.JsonGenerator.serialize(JsonGenerator.java:172)
    at
 com.google.api.client.json.JsonGenerator.serialize(JsonGenerator.java:145)
    at
 com.google.api.client.json.JsonGenerator.serialize(JsonGenerator.java:172)
    at
 com.google.api.client.json.JsonGenerator.serialize(JsonGenerator.java:106)
    at
 com.google.api.client.http.json.JsonHttpContent.writeTo(JsonHttpContent.java:78)
    at
 com.google.api.client.http.GZipEncoding.encode(GZipEncoding.java:49)
    at
 com.google.api.client.http.HttpEncodingStreamingContent.writeTo(HttpEncodingStreamingContent.java:51)
    at com.google.api.client.util.IOUtils.computeLength(IOUtils.java:113)
    at
 com.google.api.client.http.HttpRequest.execute(HttpRequest.java:917)
    at
 com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:410)
    at
 com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:343)
    at
 com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:460)
    at
 com.streak.logging.utils.BigqueryIngester.streamingRowIngestion(BigqueryIngester.java:54)
    at
 com.streak.logging.analysis.LogExportDirectToBigqueryTask.doGet(LogExportDirectToBigqueryTask.java:178)

Answer 1

看起来，在json请求中写入其中一个字段名时出现了错误。你的行很可能出了问题。这可能是因为您有不可解析的嵌套数据，或者您缺少名称-对象映射的键。你能打印出一个例子并将它添加到问题或你的pastebin链接中吗？