I wonder if you can make use of per Cell TTL ? See third paragraph under http://hbase.apache.org/book.html#ttl
Basically there would be two flags (same row): one for marking whether user has submitted the comment, the other is for the TTL you described. When postDelete() is called on the TTL'ed cell, you can retrieve the first flag and make decision. FYI On Mon, Aug 28, 2017 at 10:31 PM, Cheyenne Forbes < [email protected]> wrote: > I'm sorry, "*postDelete*" wasnt supposed to be a link, I copied the text > and gmail sent it as a link. > > *Use case:* > > When a user is commenting with a photo it is uploaded to be able to be > previewed and the id of the photo is added to a hbase table "tempFiles" > with a 5 hour TTL for each row, if the user submits the comment, the row is > deleted manually and *postDelete* would "ignore" it but if it isnt > submitted and the TTL reaches, *postDelete* would run a piece of code which > would delete the file from my file server > > > On Mon, Aug 28, 2017 at 5:33 PM, Ted Yu <[email protected]> wrote: > > > There is no such indication from the book you mentioned. > > Can you tell us your use case where such distinction is needed ? > > -------- Original message --------From: Cheyenne Forbes < > > [email protected]> Date: 8/28/17 2:51 PM (GMT-08:00) To: > > [email protected] Subject: Co-processors: Know if row is being > > deleted by TTL > > Is is possible to know if a row is being deleted manually or by the > > reaching of the TTL on "*postDelete > > <https://hbase.apache.org/0.94/apidocs/org/apache/hadoop/ > > hbase/coprocessor/BaseRegionObserver.html#postDelete(org.apache.hadoop. > > hbase.coprocessor.ObserverContext,%20org.apache. > > hadoop.hbase.client.Delete,%20org.apache.hadoop.hbase. > > regionserver.wal.WALEdit,%20boolean)>* > > "? > > > > Regards, > > > > Cheyenne O. Forbes > > >
