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Re: [geomesa-users] Date Indexing, Stucked queries
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Hi Marcel,
Could you provide your full simple feature type string? I'll try to
reproduce the error you're seeing with the full table scan. Also, what
version of geomesa are you currently using? Did you re-ingest your data
using the new version? If not, what was the old version that you
ingested the data with?
With regards to the queries not finishing - we try to optimize queries
so that they only scan records that are likely to match. However,
depending on the query, we can't always do that. If you're seeing the
'full table scan' warning, then the query won't completely return until
it has scanned your entire dataset, even if none of the features
actually match. In all cases, the scan should eventually return, but if
you're getting memory errors you might need to bump up some settings
somewhere. If java gets low on memory and starts swapping to disk, it
can slow things to a crawl. Where are you seeing the heapspace errors?
Thanks,
Emilio
On 09/01/2015 11:58 AM, Marcel wrote:
Hello,
after some weeks of abstinence I continued working with Geomesa. First
of all I updated to the new geomesa version and some of my problems
got solved.
Unfortunately others were not. My data imported successfully on the
cluster, but it seems that my Date attribute was not indexed. I used
"SQLDATE:Date:index=full" for this attribute. But when executing a
query using a temporal filter the logger says: "Running full table
scan for schema event with filter SQLDATE AFTER
1991-04-28T22:00:00+00:00". Is this the correct way to define that my
attribute should be indexed?
Another problem seems to appear when there are 0 results for my
query. These queries often dont finish. Sometimes even a HeapSpace
error occurs. Maybe this stays in connection with my missing indexing
date attribute when scanning over all records.
Best regards,
Marcel Jacob.
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