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Re: [geomesa-users] Question about min and max times in indexing
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Ok, since by default feature types will share a table, you can expect to
still see the _z3 table. I think somehow the user data is not getting
set right
before the call to createSchema. If you look at the 'atttributes' row,
you should see something like:
...geomesa.indices='z2:3:3,records:2:3,attr:4:3'...
(it shouldn't include the z3 entry).
You can try remote debugging to figure out what's wrong, this is the
line that should be handling it:
https://github.com/locationtech/geomesa/blob/master/geomesa-accumulo/geomesa-accumulo-datastore/src/main/scala/org/locationtech/geomesa/accumulo/data/AccumuloDataStore.scala#L185
As a work-around, you can edit the 'attributes' row through the accumulo
shell to remove the z3 reference - that will cause it to stop writing
and reading from z3.
Thanks,
Emilio
On 04/21/2017 04:34 PM, David Boyd wrote:
Emilio:
There are three feature types defined.
ActorRecordset~attributes : []
objectKey:String,entityName:String,entitySource:String,entityTitle:String,recordKey:String:cardinality=high:index=full,Name:String:cardinality=high:index=full,Type:String:cardinality=high:index=full,NameMetaphone:String:cardinality=high:index=full,Country:String:cardinality=high:index=full,AffiliationTo:String:cardinality=high:index=full,AffiliationStart:Date:cardinality=high:index=full,AffiliationEnd:Date:cardinality=high:index=full,Aliases:String:cardinality=high:index=full,GeoCountryCode:String:cardinality=high:index=full,*GeoLocation:Point;geomesa.index.dtg='AffiliationStart',geomesa.table.sharing='true',geomesa.indices='z3:4:3,z2:3:3,records:2:3,attr:4:3',geomesa.table.sharing.prefix='\\u0002'
ActorRecordset~id : [] \x02
ActorRecordset~stats-date : [] 2017-04-21T20:17:01.572Z
ActorRecordset~table.attr.v4 : [] CoalesceSearch_attr_v4
ActorRecordset~table.records.v2 : [] CoalesceSearch_records_v2
ActorRecordset~table.z2.v3 : [] CoalesceSearch_z2_v3
ActorRecordset~table.z3.v4 : [] CoalesceSearch_z3_v4
ICEWSArtifactRecordset~attributes : []
objectKey:String,entityName:String,entitySource:String,entityTitle:String,recordKey:String:cardinality=high:index=full,SourceFileName:String:cardinality=high:index=full,RawText:String:cardinality=high:index=full,Md5Sum:String:cardinality=high:index=full,DateIngested:Date:cardinality=high:index=full,ArtifactDate:Date:cardinality=high:index=full,*theWorld:Polygon;geomesa.index.dtg='DateIngested',geomesa.table.sharing='true',geomesa.indices='xz3:1:3,xz2:1:3,records:2:3,attr:4:3',geomesa.table.sharing.prefix='\\u0003'
ICEWSArtifactRecordset~id : [] \x03
ICEWSArtifactRecordset~stats-date : [] 2017-04-21T20:20:58.054Z
ICEWSArtifactRecordset~table.attr.v4 : [] CoalesceSearch_attr_v4
ICEWSArtifactRecordset~table.records.v2 : [] CoalesceSearch_records_v2
ICEWSArtifactRecordset~table.xz2.v1 : [] CoalesceSearch_xz2
ICEWSArtifactRecordset~table.xz3.v1 : [] CoalesceSearch_xz3
Linkages~attributes : []
objectKey:String:cardinality=high:index=full,entity1Key:String,entity1Name:String,entity1Source:String,entity1Version:String,entity1Key:String:cardinality=high:index=full,entity1Name:String,entity1Source:String,entity1Version:String,lastModified:Date:cardinality=high:index=full,label:String:cardinality=low:index=full,linkType:String:cardinality=low:index=full,*theWorld:Polygon;geomesa.index.dtg='lastModified',geomesa.table.sharing='true',geomesa.indices='xz3:1:3,xz2:1:3,records:2:3,attr:4:3',geomesa.table.sharing.prefix='\\u0001'
Linkages~id : [] \x01
Linkages~stats-date : [] 2017-04-21T20:16:02.269Z
Linkages~table.attr.v4 : [] CoalesceSearch_attr_v4
Linkages~table.records.v2 : [] CoalesceSearch_records_v2
Linkages~table.xz2.v1 : [] CoalesceSearch_xz2
Linkages~table.xz3.v1 : [] CoalesceSearch_xz3
On 4/21/17 4:28 PM, Emilio Lahr-Vivaz wrote:
We will always set a default date field for indexing, so that is why
you see the date validation message. However, it seems like
you are setting the hints correctly. It is odd though, because there
shouldn't ever be a situation where we create both the XZ3 and Z3
index for a single feature type. Do you have other feature types in
the same catalog table? Can you scan the catalog table and reply with
the result of the 'attributes' row?
Thanks,
Emilio
On 04/21/2017 04:20 PM, David Boyd wrote:
Emilio:
Some more information. I am getting this message:
2017-04-21 16:17:01,484 | WARN | [main] |
(GeoMesaSchemaValidator.scala:90) - geomesa.index.dtg is not valid
or defined for simple feature type SimpleFeatureTypeImpl
http://www.opengis.net/gml:ActorRecordset identified extends
Feature(objectKey:objectKey,entityName:entityName,entitySource:entitySource,entityTitle:entityTitle,recordKey:recordKey,Name:Name,Type:Type,NameMetaphone:NameMetaphone,Country:Country,AffiliationTo:AffiliationTo,AffiliationStart:AffiliationStart,AffiliationEnd:AffiliationEnd,Aliases:Aliases,GeoCountryCode:GeoCountryCode,GeoLocation:GeoLocation).
However, the following attribute(s) can be used in GeoMesa's
temporal index: AffiliationStart, AffiliationEnd. GeoMesa will now
point geomesa.index.dtg to the first temporal attribute found:
AffiliationStart
Now when I create my schema's. Despite specifically disabling
those indexes and not specifying a time field for geomesa.index.dtg.
I have also tried adding:
feature.getUserData().put("geomesa.index.dtg",null);
To my code. Same result.
On 4/21/17 4:04 PM, David Boyd wrote:
Emilio:
Thanks for the detailed explanation.
I am trying to disable the Z3 index. I have added the following
to my code:
final String indexes = "z2,records,id,attr";
SimpleFeatureType feature = tb.buildFeatureType();
// index recordkey, cardinality is high because there is
only one record per key.
feature.getDescriptor(ENTITY_RECORD_KEY_COLUMN_NAME).getUserData().put("index",
"full");
feature.getDescriptor(ENTITY_RECORD_KEY_COLUMN_NAME).getUserData().put("cardinality",
"high");
feature.getUserData().put("geomeas.indexes.enabled",indexes);
I then create other attribute indexes the call createSchema with
the feature.
I am still getting the exception:
java.lang.IllegalArgumentException: requirement failed: Value out
of bounds ([0.0 604800.0]): -432000.0
at scala.Predef$.require(Predef.scala:224)
at
org.locationtech.geomesa.curve.NormalizedDimension$class.normalize(NormalizedDimension.scala:17)
at
org.locationtech.geomesa.curve.NormalizedTime.normalize(NormalizedDimension.scala:33)
When I look at my accumulo tables I still have:
CoalesceSearch_xz3
CoalesceSearch_z3_v4
I dropped all my tables before this was run.
What am I missing?
On 4/21/17 10:02 AM, Emilio Lahr-Vivaz wrote:
Yeah, that error is a bit obtuse but it's coming from converting
the date into an index value. I believe that currently if a
feature fails to validate for any index, it will not be stored at
all. This is to prevent partial indexing, where your query results
might differ based on which index it uses. Previously we allowed
partial indexing, and I think at this point we'd like to support
both based on a configuration property, but haven't implemented it
yet.
We haven't really had any use-cases so far for storing data that
old, so we don't currently support it. However, there are a couple
things you could do (off the top of my head):
* Add another date field for indexing, or disable the z3 index. If
the date isn't part of the primary z index, then it won't cause
any problems. You can still filter on it as normal, it just won't
use the date in the primary range planning so queries will be
slower. To alleviate that, you could add an attribute index on the
date field - that does not have the same restrictions on date
range, but it is not a composite index so query planning will use
either date *or* geometry but not both.
* Offset dates by some fixed amount to bring them into an
indexable range, and add some logic in your client to transform
queries and results. This may be fairly complicated...
From a technical perspective I don't think there is any reason we
couldn't store dates before the epoch, it just hasn't been
implemented.
Thanks,
Emilio
On 04/20/2017 10:13 PM, David Boyd wrote:
Emilio:
Thanks. I puzzled it out in the end.
How would one date index historical data? The data I have has
numerous dates before the Epoch. The exception I am
getting below. Does this mean my feature did not get stored, or
just the date was not indexed? If the latter, how would
this data behave on a query including the date?
2017-04-20 17:11:12,306 | WARN | [Thread-7] |
(ICEWS_EntityExtractor.java:240) - StartDateString: 1968-01-01
StartDate: 1968-01-01T00:00:00.000-05:00 EndDateString:
1996-08-31 EndDate: 1996-08-31T00:00:00.000-04:00
2017-04-20 17:11:12,306 | INFO | [Thread-7] |
(ICEWS_EntityExtractor.java:300) - Persisting 2 ICEWS records.
2017-04-20 17:11:12,556 | ERROR | [Thread-7] |
(AccumuloPersistor.java:1073) - requirement failed: Value out of
bounds ([0.0 604800.0]): -241200.0
java.lang.IllegalArgumentException: requirement failed: Value
out of bounds ([0.0 604800.0]): -241200.0
at scala.Predef$.require(Predef.scala:224)
at
org.locationtech.geomesa.curve.NormalizedDimension$class.normalize(NormalizedDimension.scala:17)
On 4/20/17 6:07 PM, Emilio Lahr-Vivaz wrote:
Hi David,
I don't believe that this is in our documentation, but it's
commented in our source code. The min date will always be the
unix epoch, and the max date depends on the indexing interval of
your z-curve (the default interval is week):
https://github.com/locationtech/geomesa/blob/master/geomesa-z3/src/main/scala/org/locationtech/geomesa/curve/BinnedTime.scala#L15-L39
Thanks,
Emilio
On 04/20/2017 04:45 PM, David Boyd wrote:
All:
Haven't found this in the documents yet so I thought I would
ask.
I have a two fields in my data representing a startTime and an
endTime.
Values for those string fields are normally dates but can also
be "beginning of time" and
"end of time" respectively.
I originally I tried setting beginning of time to be 01/01/1111
but I would get an
index out of range error (I assume it is because this was
before the standard Unix epoc).
That error was down in the XZ3 index creation.
I then tried using new DateTime(Long.MIN) and new
DateTime(Long.MAX) but the max
now throws errors in Joda.Time.
So what are the min and max Times supported by Geomesa in the
indexes?
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