: <processor
: class="solr.processor.DocExpirationUpdateProcessorFactory">
: <int name="autoDeletePeriodSeconds">30</int>
: <str name="ttlFieldName">ttl</str>
: <str name="expirationFieldName">expire_at</str>
: </processor>
...
: And I have included the following in my schema.xml
:
: <field name="ttl" type="date" indexed="true" stored="true"
: default="NOW+60SECONDS" multiValued="false"/>
there are a couple of problems here...
: As you can see I am setting the time to live to be 60 seconds and checking
: to delete every 30 seconds, when I insert a document , and check after a
: minute or couple or an hour it never gets deleted.
first off: you aren't actaully setting the ttl to "60 seconds" you are
setting the ttl to be a fixed moment in time which is 60 seconds from when
the doc is written to the index -- basically you are eliminating hte need
for having a ttl field/param at all and saying "this is *exactly* when the
document should expire".
if that's what you want to do, just elimintae the ttleFieldName everywhere
in your schema.xml and solrconfig.xml and setup expire_at in your
schema.xml with a default="NOW+60SECONDS" and you'll probably be good to
go.
second...
: what might be the issue here ? Please note that the expire_at field is
: never getting generated in the Solr document as can be seen below.
...even if you redefined your ttl field to look like this...
<field name="ttl" type="string" default="+60SECONDS" />
...the expire_at still wouldn't be populated by the processor because
schema field "default" values are populated *after* the processors run --
so when the DocExpirationUpdateProcessorFactory sees the documents being
added, it has no idea that they all have a default ttl, so it doesn't know
that you want it to compute an expire_at for you.
instead of using default="" in the schema, you can use the
DefaultValueUpdateProcessorFactory to assign it *before* the
DocExpirationUpdateProcessorFactory sees the doc...
<processor class="solr.DefaultValueUpdateProcessorFactory">
<str name="fieldName">ttl</str>
<str name="value">+60SECONDS</str>
</processor>
-Hoss
http://www.lucidworks.com/
