Geospatial Geomesa导出没有返回任何结果，尽管存在数据

不知道您是否可以帮助我们了解查询geomesa/Accumulo时出现的问题

问题：

当我们使用

geomesa export-u A-p B-c catalog1-f d1 json-f csv查询所有字段时，它将返回数据（示例见下文）

当我们添加带有

-a“short\u text\u field”

或甚至是简单的

-q“short\u text\u field='Cow'”

的列子集时，尽管存在数据，它仍返回0个特征：

geomesa export-u A-p B-c catalog1-f d1 json-f csv-A“短文本字段”

信息已导出0个功能 id，短文本字段：字符串，*geom:Point:srid=4326 信息功能导出在2077毫秒内完成到标准输出

来自（1）的样本数据：

id，geom:Point:srid=4326，短文本字段：字符串，长文本字段：字符串，长文本字段：字符串 e9c756ef-06d6-42dd-84a9-c774ec9086ec，点（-117.830256-76.799443），597Fish，“牛车？牛鱼鼠猫车鱼马鼠鱼”诶 迪 伊 迎 益 伊 迎 诶 迎 诶 伊")

问题：有人知道调试这个的最佳方法吗

使用-a运行查询时从日志中摘录：

2017-01-10 14:36:04,921 WARN  [org.apache.hadoop.util.NativeCodeLoader] Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2017-01-10 14:36:06,448 WARN  [org.apache.accumulo.server.fs.VolumeManagerImpl] dfs.datanode.synconclose set to false in hdfs-site.xml: data loss is possible on hard system reset or power loss
2017-01-10 14:36:09,943 WARN  [org.locationtech.geomesa.accumulo.data.AccumuloDataStore] Configured server-side iterators do not match client version - client version: 1.2.7, server version: unavailable
2017-01-10 14:36:10,329 WARN  [org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator] Error on server testmisc-w-0.c.geobench-146409.internal:9997
org.apache.accumulo.core.client.impl.AccumuloServerException: Error on server testmisc-w-0.c.geobench-146409.internal:9997
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:695)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator$QueryTask.run(TabletServerBatchReaderIterator.java:349)
        at org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.thrift.TApplicationException: Internal error processing startMultiScan
        at org.apache.thrift.TApplicationException.read(TApplicationException.java:111)
        at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.recv_startMultiScan(TabletClientService.java:317)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.startMultiScan(TabletClientService.java:297)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:634)
        ... 6 more
2017-01-10 14:36:10,342 WARN  [org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator] Error on server testmisc-w-1.c.geobench-146409.internal:9997
org.apache.accumulo.core.client.impl.AccumuloServerException: Error on server testmisc-w-1.c.geobench-146409.internal:9997
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:695)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator$QueryTask.run(TabletServerBatchReaderIterator.java:349)
        at org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.thrift.TApplicationException: Internal error processing startMultiScan
        at org.apache.thrift.TApplicationException.read(TApplicationException.java:111)
        at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.recv_startMultiScan(TabletClientService.java:317)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.startMultiScan(TabletClientService.java:297)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:634)
        ... 6 more
2017-01-10 14:36:10,344 WARN  [org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator] Error on server testmisc-w-1.c.geobench-146409.internal:9997
org.apache.accumulo.core.client.impl.AccumuloServerException: Error on server testmisc-w-1.c.geobench-146409.internal:9997
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:695)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator$QueryTask.run(TabletServerBatchReaderIterator.java:349)
        at org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.thrift.TApplicationException: Internal error processing startMultiScan
        at org.apache.thrift.TApplicationException.read(TApplicationException.java:111)
        at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.recv_startMultiScan(TabletClientService.java:317)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.startMultiScan(TabletClientService.java:297)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:634)
        ... 6 more
2017-01-10 14:36:10,351 WARN  [org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator] Error on server testmisc-m.c.geobench-146409.internal:9997
rg.apache.accumulo.core.client.impl.AccumuloServerException: Error on server testmisc-m.c.geobench-146409.internal:9997
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:695)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator$QueryTask.run(TabletServerBatchReaderIterator.java:349)
        at org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.thrift.TApplicationException: Internal error processing startMultiScan
        at org.apache.thrift.TApplicationException.read(TApplicationException.java:111)
        at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.recv_startMultiScan(TabletClientService.java:317)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.startMultiScan(TabletClientService.java:297)
        at org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:634)
        ... 6 more
2017-01-10 14:36:10,430 INFO  [org.locationtech.geomesa.tools.accumulo.DelimitedExport] Exported 0 features
2017-01-10 14:36:10,433 INFO  [org.locationtech.geomesa.tools.accumulo.commands.ExportCommand] Feature export complete to standard out in 3049ms

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解决方案是简单地将名称空间作为前缀添加到Inest and export commands catalog参数中

摄取时，请确保指定namespace.catalogname

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同样，在查询时也必须这样做。

这似乎不能回答所提出的问题。在问题中，

-c catalog1

用于成功和失败的命令。关键点是，如果要在export命令中添加-a或-q，请确保在catalog参数前面加上名称空间。