[jira] [Commented] (SOLR-6638) Create an off-heap implementation of Solr caches

[Alexander Block (JIRA)]

[ 
https://issues.apache.org/jira/browse/SOLR-6638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15395693#comment-15395693
 ] 

Alexander Block commented on SOLR-6638:
---

Did anyone try to use MapDB for an off-heap cache implementation?

> Create an off-heap implementation of Solr caches
> 
>
> Key: SOLR-6638
> URL: https://issues.apache.org/jira/browse/SOLR-6638
> Project: Solr
>  Issue Type: New Feature
>Reporter: Noble Paul
>
> There are various implementations of off-heap implementations of cache. One 
> such is using sun.misc.Unsafe .The cache implementations are pluggable in 
> Solr anyway



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[jira] [Created] (SOLR-6430) Date sort order for null and dates 1970 is wrong

[Alexander Block (JIRA)]

Alexander Block created SOLR-6430:
-

 Summary: Date sort order for null and dates  1970 is wrong
 Key: SOLR-6430
 URL: https://issues.apache.org/jira/browse/SOLR-6430
 Project: Solr
  Issue Type: Bug
Affects Versions: 4.9
Reporter: Alexander Block


I have a date field as follows:

field name=ETD type=date indexed=true stored=true multiValued=false 
/
...
fieldType name=date class=solr.TrieDateField precisionStep=0 
positionIncrementGap=0/

In my data set I have unset fields (null), dates which are pre EPOCH (e.g. 
1930-02-13T23:00:00Z) and dates which are post EPOCH (e.g. 
2000-12-31T23:00:00Z). When sorting in ascending order, I would expect the null 
fields to be considered the ones with the lowest values, for example:
null
1930-02-13T23:00:00Z
2000-12-31T23:00:00Z

What I get however is:
1930-02-13T23:00:00Z
null
2000-12-31T23:00:00Z

It looks like null is not handled as the lowest possible value for a date field.



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