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Posted to user@ignite.apache.org by "Troilo, Rafael" <Ra...@heigit.org> on 2022/02/14 17:12:15 UTC
Spatial index broken and breaking cluster when created (2.12.0)
Hi everyone,
I try to use the ignite-geospatial extension[1] for ignite 2.12.0.
But as soon as I create a spatial index with
- sql: CREATE spatial INDEX ...
- or via annotated classes like the MapPoint example [2]
every new client connecting to the cluster get an NullPointerException message. The reason for that is a not set/null `GridCacheContext`.
org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
The client, creating the cache with index on geometry (MapPoint example), can access the cache and even do a spatial query as long it stays connected to the cluster.
I could provide a Testcase if you like.
Dose anyone have a working spatial index example?
Thank you for your support.
Best,
Rafael
SEVERE: Can't initialize query structures for not started cache [cacheName=points]
class org.apache.ignite.IgniteException: Failed to instantiate: org.apache.ignite.internal.processors.query.h2.opt.GridH2SpatialIndex
at org.apache.ignite.internal.processors.query.h2.H2Utils.createSpatialIndex(H2Utils.java:332)
....
Caused by: java.lang.NullPointerException
at org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
Exception in thread "main" javax.cache.CacheException: class org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already indexed in cache 'points'.
Caused by: class org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already indexed in cache 'points'.
at org.apache.ignite.internal.processors.query.GridQueryProcessor.registerCache0(GridQueryProcessor.java:2158)
at org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart0(GridQueryProcessor.java:1029)
at org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart(GridQueryProcessor.java:1096)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheStart(GridCacheProcessor.java:1994)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$55a0e703$1(GridCacheProcessor.java:1864)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$15(GridCacheProcessor.java:1816)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1861)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1815)
at org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCacheStartRequests(CacheAffinitySharedManager.java:481)
at org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCachesRequests(CacheAffinitySharedManager.java:702)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.processCustomExchangeTask(GridCacheProcessor.java:446)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.processCustomTask(GridCachePartitionExchangeManager.java:3135)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body0(GridCachePartitionExchangeManager.java:3280)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:3197)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:125)
at java.base/java.lang.Thread.run(Thread.java:830)
[1] https://github.com/apache/ignite/tree/master/modules/geospatial
[2] https://www.gridgain.com/resources/blog/geospatial-queries-apache-ignite
--
Rafael Troilo
HeiGIT gGmbH
Heidelberg Institute for Geoinformation Technology at Heidelberg University
https://heigit.org | rafael.troilo@heigit.org | phone +49-6221-533 484
Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany
Offices: Berliner Str. 45 | 69120 Heidelberg | Germany
Amtsgericht Mannheim | HRB 733765
Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger
Re: Spatial index broken and breaking cluster when created (2.12.0)
Posted by Maksim Timonin <ti...@apache.org>.
Hi Rafael,
I investigated your issue. I'm sorry, It's actually a bug, it's impossible
to use client nodes for running geospatial indexes in 2.12. It should be
fixed, and it will be a part of future release 2.13. Thank you for finding
that!
But, it is still possible to use server nodes or thin clients to work with
spatial indexes. Your test passed with using IgniteClient instead of a
client node. Please, check the docs describing thin clients [1]. Also, it'
s possible to run applications with server nodes.
If you have any questions, please feel free to ask me.
[1]
https://ignite.apache.org/docs/latest/thin-clients/getting-started-with-thin-clients
Thanks,
Maksim
On Tue, Feb 15, 2022 at 1:35 PM Troilo, Rafael <Ra...@heigit.org>
wrote:
> Hi Maksim,
>
>
> thank you for your fast response.
>
> I attached you a very simple test case and hope that you can reproduce the
> exception(s).
>
> It also happens in an distributed environment with the server(s) on other
> nodes.
>
>
> Btw. it works as expected with ignite 2.10.0 and previous releases. And
> very likely get broken with the refactoring of the indexing module.
>
> https://issues.apache.org/jira/browse/IGNITE-13056
>
>
> https://github.com/apache/ignite/commit/35b3528fa020fd5bf1dce03cd2fc63508c9912a3
>
>
> This test will fail:
>
>
> @Test
> public void testLoadAndQueryNewClientAccess() {
> try (var server = server()) {
> try (var client = client()) {
> var indexedCache = client.createCache(new CacheConfiguration<Long,
> MapPoint>()
> .setName(CACHE_NAME)
> .setIndexedTypes(Long.class, MapPoint.class));
> load(indexedCache);
> assertEquals(1_000, indexedCache.size());
> queryIndexed(indexedCache);
> }
> try (var client = client()) {
> // just connect a new client will case a exception in the log
> // Caused by: java.lang.NullPointerException
> // at
> org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
> // accessing the cache finally results in a fail
> // Caused by: class org.apache.ignite.IgniteCheckedException: Type with
> name 'MapPoint' already indexed in cache 'points'.
> // at
> org.apache.ignite.internal.processors.query.GridQueryProcessor.registerCache0(GridQueryProcessor.java:2158)
> var cache = client.<Long,MapPoint>cache(CACHE_NAME);
> assertEquals(1_000, cache.size());
> queryIndexed(cache);
> }
> }
> }
>
>
>
> Thank you for your time.
>
> Best,
>
> Rafael
>
>
>
> --
> Rafael Troilo
> HeiGIT gGmbH
> Heidelberg Institute for Geoinformation Technology at Heidelberg University
>
> https://heigit.org | rafael.troilo@heigit.org | phone +49-6221-533 484
>
> Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany Offices: Berliner Str. 45 | 69120 Heidelberg | Germany
>
> Amtsgericht Mannheim | HRB 733765 Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger
>
> ------------------------------
> *From:* Maksim Timonin <ti...@apache.org>
> *Sent:* Tuesday, February 15, 2022 9:00 AM
> *To:* user@ignite.apache.org
> *Subject:* Re: Spatial index broken and breaking cluster when created
> (2.12.0)
>
> Hi Rafael,
>
> I check the example from the paper you mentioned, and it works for me, for
> multiple clients too. Could you please provide code for your test case?
> Getting NPE is definitely a bug, and we should fix it. But maybe we have a
> workaround for your case.
>
> Thanks,
> Maksim
>
>
>
> On Mon, Feb 14, 2022 at 8:12 PM Troilo, Rafael <Ra...@heigit.org>
> wrote:
>
>> Hi everyone,
>>
>> I try to use the ignite-geospatial extension[1] for ignite 2.12.0.
>>
>> But as soon as I create a spatial index with
>>
>> - sql: CREATE spatial INDEX ...
>> - or via annotated classes like the MapPoint example [2]
>>
>> every new client connecting to the cluster get an NullPointerException
>> message. The reason for that is a not set/null `GridCacheContext`.
>>
>> org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
>>
>> The client, creating the cache with index on geometry (MapPoint example),
>> can access the cache and even do a spatial query as long it stays connected
>> to the cluster.
>>
>> I could provide a Testcase if you like.
>>
>> Dose anyone have a working spatial index example?
>>
>> Thank you for your support.
>> Best,
>> Rafael
>>
>> SEVERE: Can't initialize query structures for not started cache
>> [cacheName=points]
>> class org.apache.ignite.IgniteException: Failed to instantiate:
>> org.apache.ignite.internal.processors.query.h2.opt.GridH2SpatialIndex
>> at
>> org.apache.ignite.internal.processors.query.h2.H2Utils.createSpatialIndex(H2Utils.java:332)
>> ....
>> Caused by: java.lang.NullPointerException
>> at
>> org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
>>
>> Exception in thread "main" javax.cache.CacheException: class
>> org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already
>> indexed in cache 'points'.
>> Caused by: class org.apache.ignite.IgniteCheckedException: Type with name
>> 'MapPoint' already indexed in cache 'points'.
>> at
>> org.apache.ignite.internal.processors.query.GridQueryProcessor.registerCache0(GridQueryProcessor.java:2158)
>> at
>> org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart0(GridQueryProcessor.java:1029)
>> at
>> org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart(GridQueryProcessor.java:1096)
>> at
>> org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheStart(GridCacheProcessor.java:1994)
>> at
>> org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$55a0e703$1(GridCacheProcessor.java:1864)
>> at
>> org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$15(GridCacheProcessor.java:1816)
>> at
>> org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1861)
>> at
>> org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1815)
>> at
>> org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCacheStartRequests(CacheAffinitySharedManager.java:481)
>> at
>> org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCachesRequests(CacheAffinitySharedManager.java:702)
>> at
>> org.apache.ignite.internal.processors.cache.GridCacheProcessor.processCustomExchangeTask(GridCacheProcessor.java:446)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.processCustomTask(GridCachePartitionExchangeManager.java:3135)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body0(GridCachePartitionExchangeManager.java:3280)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:3197)
>> at
>> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:125)
>> at java.base/java.lang.Thread.run(Thread.java:830)
>>
>>
>> [1] https://github.com/apache/ignite/tree/master/modules/geospatial
>> [2]
>> https://www.gridgain.com/resources/blog/geospatial-queries-apache-ignite
>>
>>
>> --
>> Rafael Troilo
>> HeiGIT gGmbH
>> Heidelberg Institute for Geoinformation Technology at Heidelberg
>> University
>>
>> https://heigit.org | rafael.troilo@heigit.org | phone +49-6221-533 484
>>
>> Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany
>> Offices: Berliner Str. 45 | 69120 Heidelberg | Germany
>>
>> Amtsgericht Mannheim | HRB 733765
>> Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger
>>
>
Re: Spatial index broken and breaking cluster when created (2.12.0)
Posted by "Troilo, Rafael" <Ra...@heigit.org>.
Hi Maksim,
thank you for your fast response.
I attached you a very simple test case and hope that you can reproduce the exception(s).
It also happens in an distributed environment with the server(s) on other nodes.
Btw. it works as expected with ignite 2.10.0 and previous releases. And very likely get broken with the refactoring of the indexing module.
https://issues.apache.org/jira/browse/IGNITE-13056
https://github.com/apache/ignite/commit/35b3528fa020fd5bf1dce03cd2fc63508c9912a3
This test will fail:
@Test
public void testLoadAndQueryNewClientAccess() {
try (var server = server()) {
try (var client = client()) {
var indexedCache = client.createCache(new CacheConfiguration<Long, MapPoint>()
.setName(CACHE_NAME)
.setIndexedTypes(Long.class, MapPoint.class));
load(indexedCache);
assertEquals(1_000, indexedCache.size());
queryIndexed(indexedCache);
}
try (var client = client()) {
// just connect a new client will case a exception in the log
// Caused by: java.lang.NullPointerException
// at org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
// accessing the cache finally results in a fail
// Caused by: class org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already indexed in cache 'points'.
// at org.apache.ignite.internal.processors.query.GridQueryProcessor.registerCache0(GridQueryProcessor.java:2158)
var cache = client.<Long,MapPoint>cache(CACHE_NAME);
assertEquals(1_000, cache.size());
queryIndexed(cache);
}
}
}
Thank you for your time.
Best,
Rafael
--
Rafael Troilo
HeiGIT gGmbH
Heidelberg Institute for Geoinformation Technology at Heidelberg University
https://heigit.org | rafael.troilo@heigit.org<ma...@heigit.org> | phone +49-6221-533 484
Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany Offices: Berliner Str. 45 | 69120 Heidelberg | Germany
Amtsgericht Mannheim | HRB 733765 Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger
________________________________
From: Maksim Timonin <ti...@apache.org>
Sent: Tuesday, February 15, 2022 9:00 AM
To: user@ignite.apache.org
Subject: Re: Spatial index broken and breaking cluster when created (2.12.0)
Hi Rafael,
I check the example from the paper you mentioned, and it works for me, for multiple clients too. Could you please provide code for your test case? Getting NPE is definitely a bug, and we should fix it. But maybe we have a workaround for your case.
Thanks,
Maksim
On Mon, Feb 14, 2022 at 8:12 PM Troilo, Rafael <Ra...@heigit.org>> wrote:
Hi everyone,
I try to use the ignite-geospatial extension[1] for ignite 2.12.0.
But as soon as I create a spatial index with
- sql: CREATE spatial INDEX ...
- or via annotated classes like the MapPoint example [2]
every new client connecting to the cluster get an NullPointerException message. The reason for that is a not set/null `GridCacheContext`.
org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
The client, creating the cache with index on geometry (MapPoint example), can access the cache and even do a spatial query as long it stays connected to the cluster.
I could provide a Testcase if you like.
Dose anyone have a working spatial index example?
Thank you for your support.
Best,
Rafael
SEVERE: Can't initialize query structures for not started cache [cacheName=points]
class org.apache.ignite.IgniteException: Failed to instantiate: org.apache.ignite.internal.processors.query.h2.opt.GridH2SpatialIndex
at org.apache.ignite.internal.processors.query.h2.H2Utils.createSpatialIndex(H2Utils.java:332)
....
Caused by: java.lang.NullPointerException
at org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
Exception in thread "main" javax.cache.CacheException: class org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already indexed in cache 'points'.
Caused by: class org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already indexed in cache 'points'.
at org.apache.ignite.internal.processors.query.GridQueryProcessor.registerCache0(GridQueryProcessor.java:2158)
at org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart0(GridQueryProcessor.java:1029)
at org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart(GridQueryProcessor.java:1096)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheStart(GridCacheProcessor.java:1994)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$55a0e703$1(GridCacheProcessor.java:1864)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$15(GridCacheProcessor.java:1816)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1861)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1815)
at org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCacheStartRequests(CacheAffinitySharedManager.java:481)
at org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCachesRequests(CacheAffinitySharedManager.java:702)
at org.apache.ignite.internal.processors.cache.GridCacheProcessor.processCustomExchangeTask(GridCacheProcessor.java:446)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.processCustomTask(GridCachePartitionExchangeManager.java:3135)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body0(GridCachePartitionExchangeManager.java:3280)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:3197)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:125)
at java.base/java.lang.Thread.run(Thread.java:830)
[1] https://github.com/apache/ignite/tree/master/modules/geospatial
[2] https://www.gridgain.com/resources/blog/geospatial-queries-apache-ignite
--
Rafael Troilo
HeiGIT gGmbH
Heidelberg Institute for Geoinformation Technology at Heidelberg University
https://heigit.org | rafael.troilo@heigit.org<ma...@heigit.org> | phone +49-6221-533 484
Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany
Offices: Berliner Str. 45 | 69120 Heidelberg | Germany
Amtsgericht Mannheim | HRB 733765
Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger
Re: Spatial index broken and breaking cluster when created (2.12.0)
Posted by Maksim Timonin <ti...@apache.org>.
Hi Rafael,
I check the example from the paper you mentioned, and it works for me, for
multiple clients too. Could you please provide code for your test case?
Getting NPE is definitely a bug, and we should fix it. But maybe we have a
workaround for your case.
Thanks,
Maksim
On Mon, Feb 14, 2022 at 8:12 PM Troilo, Rafael <Ra...@heigit.org>
wrote:
> Hi everyone,
>
> I try to use the ignite-geospatial extension[1] for ignite 2.12.0.
>
> But as soon as I create a spatial index with
>
> - sql: CREATE spatial INDEX ...
> - or via annotated classes like the MapPoint example [2]
>
> every new client connecting to the cluster get an NullPointerException
> message. The reason for that is a not set/null `GridCacheContext`.
>
> org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
>
> The client, creating the cache with index on geometry (MapPoint example),
> can access the cache and even do a spatial query as long it stays connected
> to the cluster.
>
> I could provide a Testcase if you like.
>
> Dose anyone have a working spatial index example?
>
> Thank you for your support.
> Best,
> Rafael
>
> SEVERE: Can't initialize query structures for not started cache
> [cacheName=points]
> class org.apache.ignite.IgniteException: Failed to instantiate:
> org.apache.ignite.internal.processors.query.h2.opt.GridH2SpatialIndex
> at
> org.apache.ignite.internal.processors.query.h2.H2Utils.createSpatialIndex(H2Utils.java:332)
> ....
> Caused by: java.lang.NullPointerException
> at
> org.apache.ignite.internal.processors.query.h2.opt.GeoSpatialUtils.createIndex(GeoSpatialUtils.java:63)
>
> Exception in thread "main" javax.cache.CacheException: class
> org.apache.ignite.IgniteCheckedException: Type with name 'MapPoint' already
> indexed in cache 'points'.
> Caused by: class org.apache.ignite.IgniteCheckedException: Type with name
> 'MapPoint' already indexed in cache 'points'.
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor.registerCache0(GridQueryProcessor.java:2158)
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart0(GridQueryProcessor.java:1029)
> at
> org.apache.ignite.internal.processors.query.GridQueryProcessor.onCacheStart(GridQueryProcessor.java:1096)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheStart(GridCacheProcessor.java:1994)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$55a0e703$1(GridCacheProcessor.java:1864)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.lambda$prepareStartCaches$15(GridCacheProcessor.java:1816)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1861)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareStartCaches(GridCacheProcessor.java:1815)
> at
> org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCacheStartRequests(CacheAffinitySharedManager.java:481)
> at
> org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager.processClientCachesRequests(CacheAffinitySharedManager.java:702)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.processCustomExchangeTask(GridCacheProcessor.java:446)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.processCustomTask(GridCachePartitionExchangeManager.java:3135)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body0(GridCachePartitionExchangeManager.java:3280)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:3197)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:125)
> at java.base/java.lang.Thread.run(Thread.java:830)
>
>
> [1] https://github.com/apache/ignite/tree/master/modules/geospatial
> [2]
> https://www.gridgain.com/resources/blog/geospatial-queries-apache-ignite
>
>
> --
> Rafael Troilo
> HeiGIT gGmbH
> Heidelberg Institute for Geoinformation Technology at Heidelberg University
>
> https://heigit.org | rafael.troilo@heigit.org | phone +49-6221-533 484
>
> Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany
> Offices: Berliner Str. 45 | 69120 Heidelberg | Germany
>
> Amtsgericht Mannheim | HRB 733765
> Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger
>