[infinispan-issues] [JBoss JIRA] (ISPN-3153) REST endpoint does not return Last-modified header for GET operation if the entry was stored via HotRod or Embedded cache

[Galder Zamarreño (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-3153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779086#comment-12779086 ] 

Galder Zamarreño commented on ISPN-3153:
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Since immortal entries never die, we don't track creation time for them. We don't wanna be doing that either cos it takes valuable space that's might only be relevant for REST. In fact, we don't have anything that maps directly to last-modified per se. For transient entries, we track when the entry was last used (read or write) and for mortal entries, we track the creation time, which is not necessarily last modified time. Last-modified returns the expected value only when timeToLiveSeconds has been set and we're tracking creation time (mortal entry).
                
> REST endpoint does not return Last-modified header for GET operation if the entry was stored via HotRod or Embedded cache
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ISPN-3153
>                 URL: https://issues.jboss.org/browse/ISPN-3153
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Server
>    Affects Versions: 5.3.0.Beta2
>            Reporter: Martin Gencur
>            Assignee: Galder Zamarreño
>             Fix For: 5.3.0.Final
>
>
> When an entry is stored via HotRod an embedded cache, and later retrieved via REST,the Last-modified header looks like this:
> Last Modified: null
> Another observation is that when the entry is stored via REST and retrieved via REST again, the Last-modified header is:
> Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT
> This is obviously wrong and this was working correctly with JDG-server which contained ISPN 5.2. OTOH, when I set "timeToLiveSeconds" header on the request, the Last-modified is properly set (not to 1970).

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