You can see the code in ScanQueryMatcher
Basically in major compact a scan will be happening scanning all the files...
As per the delete markers, the deleted KVs wont come out of the scanner and
thus gets eliminated. Also in case of major compact the delete markers itself
will get deleted ( Sti
Hi Yun
Logically deleting a KeyValue data in hbase is performed
> by
> marking tombmarker (by Delete() per records) or setting TTL/max_version
> (per Store). After these actions, however, the physical data are still
> there, somewhere in the system. Physically deleting a record in hbase
> is
> real
Also to see the code how the delete happens pls refer to StoreScanner.java
and how the ScanQueryMatcher.match() works.
That is where we decide if any kv has to be avoided due to already deleted
tombstone marker.
Forgot to tell you about this.
Regards
Ram
> -Original Message-
> From: y
Hi, Ram and Anoop, Thanks for the nice reference on the java file, which I
will check through.
It is interesting to know about the recent feature on
preCompactScannerOpen() hook. Ram, it would be nice if I can know how to
specify conditions like c1 = 'a'. I have also checked the example code in
h
PM
To: user@hbase.apache.org
Subject: Re: Where is code in hbase that physically delete a record?
Hi, Ram and Anoop, Thanks for the nice reference on the java file, which I
will check through.
It is interesting to know about the recent feature on
preCompactScannerOpen() hook. Ram, it would be nice if I
}
Regards
Ram
> -Original Message-
> From: Anoop Sam John [mailto:anoo...@huawei.com]
> Sent: Thursday, October 18, 2012 9:02 AM
> To: user@hbase.apache.org
> Subject: RE: Where is code in hbase that physically delete a record?
>
> Hi Yun,
> We have
iginal Message-
>> From: Anoop Sam John [mailto:anoo...@huawei.com]
>> Sent: Thursday, October 18, 2012 9:02 AM
>> To: user@hbase.apache.org
>> Subject: RE: Where is code in hbase that physically delete a record?
>>
>> Hi Yun,
>> We have preCompactScannerOp
delegate.next(kv);
> >foreach(kv){
> >//Do necessary filtering here.
> > }
> >
> > }
> > }
> >
> > Regards
> > Ram
> >
> >> -Original Message-
> >> From: Anoop Sam John [mailto:anoo...@huawei.com]
<-
> >> Do the real scan from HFiles
> >> See List KVs and remove
> >> those u dont want
> >> <-
> >> Only the passe
