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Questions tagged [geomesa]

GeoMesa is an open-source, distributed, spatio-temporal database built on top of different cloud data storage systems such as Accumulo, HBase, Cassandra, and Kafka. It aims to provide spatial querying and data manipulation functionalities to those databases in the same fashion as PostGIS does to Postgres.

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154 questions
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How to restore geomesa index table in accumulo?

In my accumulo db 2 index tables are lost: ...02726, ...02727. My namespace does not have it but in geomesa tables they are present. Why this can happen and how to restore them? I can't get data through the util geomesa-accumulo export My accumulo…
r.gomboev
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Geomesa: How to calculate last coordinate in area for each cam device?

I am trying to find the last coordinate for all cams in area in area at time interval: "1 = 1 AND cam IN ('930e74d9-a607-4345-807a-eea117f97935','2da5186c-73f4-42bd-b1cf-40229673e3cf') AND BBOX(geo, 36.29196166992188, 55.36506387240321,…
r.gomboev
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Geomesa: why stat method not worked?

My scheme /geomesa-accumulo describe-schema -c myNamespace.geomesa -z 10.200.217.27 -i accumulo -u root -p qweasd123 -f SignalBuilder INFO Describing attributes of feature 'SignalBuilder' geo | Point (Spatio-temporally indexed)…
r.gomboev
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Geomesa: Using statistics in redis

I try to use geomesa with redis. I thought that redis enables statistics on geomesa by default. my redis geomesa db: ./geomesa-redis describe-schema -u localhost:6379 -c geomesa -f SignalBuilder …
r.gomboev
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Geomesa: is there a way to create, delete indexes in geomesa without loosing data? Or I need to recreate a schema?

I have a cassandra with geomesa, in there I have next schema ~  bin/geomesa-cassandra_2.11-3.3.0/bin/geomesa-cassandra describe-schema -P localhost:9042 -u cassandra -p cassandra -k geomesa -c gsm_events -f SignalBuilder INFO Describing…
r.gomboev
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geomesa - unable to initialise spark sql session using geomesa pyspark

I am trying to install geomesa for pyspark and while initialising getting an error command: geomesa_pyspark.init_sql(spark) ~/opt/anaconda3/envs/geomesa-pyspark/lib/python3.7/site-packages/geomesa_pyspark/__init__.py in init_sql(spark) 113 …
user3222101
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GeoMesa Spark can't use geohash

I am using GeoMesa Spark on a Databricks cluster referring to this sample notebook: GeoMesa - NYC Taxis. I had no problem importing and using UDF functions such as st_makePoint and st_intersects. However, when I try to use st_geoHash to create a…
haiqing liu
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How to use the Tumbling window function for the non keyed streaming data in Flink?

I want to use the tumbling window function for my program (non keyed data) as it is processing streaming data but only 300 messages/sec. I want to take it to at least 5K/sec. For this purpose, I want to use the tumbling window for 2 sec just to see…
Ellee
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Geometry transformation from lat/long to MTM in Databricks Azure

actualy, i have a pipeline in Azure DataBricks and loading csv and txt file. This files contains coordinate in latitude longitude. With this coordinates, and Geomesa library, the pipeline create Point geometry and Line geometry with st_makeLine and…
AGagnon
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Setting up GeoServer on GeoMesa HBase on AWS S3

I am running GeoMesa Hbase on AWS S3. I am able to ingest / export data from inside the cluster with geomesa-hbase ingest / export but I am trying to acces the data remotely. I have installed GeoServer (on the same Master node where GeoMesa is…
Rob Wanders
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Installing GeoMesa on Databricks

I'm trying to install GeoMesa in Azure Databricks (Databricks Version 6.6 / Scala 2.11) - trying to follow this tutorial I have installed GeoMesa in DataBricks using Maven Coordinates org.locationtech.geomesa:geomesa-spark-jts_2.11:2.3.2 as…
MrMaksimize
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GeoMesa Spark can't use UDF functions

I wanted to use GeoMesa UDF functions in Java, but I can't seem to use any of the functions, I have these imports related to GeoMesa: import org.locationtech.jts.geom.*; import org.apache.spark.sql.types.*; import…
user12403905
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How do you project geometries from one EPSG to another with Spark/Geomesa?

I am "translating" some Postgis code to Geomesa and I have some Postgis code like this: select ST_Transform(ST_SetSRID(ST_Point(longitude, latitude), 4326), 27700) which converts a point geometry from 4326 to 27700 for example. On Geomesa-Spark-sql…
Randomize
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How programmatically via GeoMesa/Spark can I read a shapefile?

I am going through the documentation https://www.geomesa.org/documentation/user/convert/shp.html but I cannot find a way to read shapefiles (in my case stored on S3) using GeoMesa/Spark. Any idea?
Randomize
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Weird Behavior of GeoMesa HBase Query

I have a question about HBase Query. I am seeing a lot of data getting scanned for small spatial queries. I fired the geospatial query on the OSMNodes table. Below are query and table details. I am seeing the total number of read requests…
Amit
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