Re: CommitLogReadHandler for Cassandra 4

or/cassandra/Cassandra4CommitLogReadHandlerImpl.java > > Feel free to reach me privately or here on ML if you have any specific > questions. > > Regards > > Stefan > > On Wed, 4 May 2022 at 01:40, Sanal Vasudevan wrote: > > > > Hi Folks, > > > > I

CommitLogReadHandler for Cassandra 4

Hi Folks, I have a standalone Java application that implements the interface *CommitLogReadHandler* to read cassandra commit log files generated by Cassandra 3.11. I recently tried to use this to read the commit logs generated by Cassandra 4, but it does not work. Has anyone tried to implement *Co

Re: Truncate operation not available in Mutation Object

src/java/org/apache/cassandra/db/commitlog/ > CommitLogReplayer.java#L102 > ). > > Chris > > On Wed, Feb 22, 2017 at 7:02 PM, Sanal Vasudevan > wrote: > > > Thanks Jeremy. > > Any way I could detect that such a truncate operation was performed on > the > >

Re: Truncate operation not available in Mutation Object

ation or anything in > the commitlog. It's a deletion of all the sstables for that table. To make > sure everything is gone, it first does a flush, then a snapshot to protect > against a mistake, then the truncate itself. > > > On Feb 22, 2017, at 6:05 PM, Sanal Vasudevan >

Truncate operation not available in Mutation Object

Hi Folks, I am trying to read Mutations from commit log files through an implementation of CommitLogReadHandler interface. For a truncate CQL operation, I do not see a Mutation object. Does C* skip writing the truncate operation into the commit log file? Thanks for your help. Best regards, Sa

Re: Cassandra Mutation object decoding

.java > > Nothing is stopping you from continuing with processing mutations > somewhere else though, I just think the above would be a good place to > start and is supported-ish API. > -- Sanal Vasudevan Nair

Re: Cassandra Mutation object decoding

p >you much there. > > There might be some other approach that are worth considering but they did > not come to my mind. > > Hope it helps > > Benjamin > > PS: MongoDB ... Seriously ??? ;-) > -- Sanal Vasudevan Nair

Re: Cassandra Mutation object decoding

wrote: > Hi Sanal, > > What you want to do is not an easy stuff and it might break with new major > releases. > > My question would be: why do you want to do that? There might be another > way to reach the same goal. > > Benjamin > > On Mon, Nov 21, 2016 at

Re: Cassandra Mutation object decoding

") }); > > 2) Likewise do we have metadata inside Mutation object to decode whether > > the CQL was an INSERT or UPDATE operation? > > > > Josh Mckenzie indicated that PartitionUpdate.deletionInfo > > (MutableDeletionInfo) may have some information but deletionInfo is > private. > > > > Basically, I am looking for help to find a way to classify Mutation object > > to INSERT/UPDATE/DELETE with related column and key information. > > > > Many thanks. > > -- > > Sanal > > > > > > > -- Sanal Vasudevan Nair

Cassandra Mutation object decoding

Hi there, I am trying to read the Commit logs to decode the original CQL which used. I get to the point an implemention of CommitLogReadHandler is able to push back Mutation objects from the Commit logs. Questions: 1) CQL: delete from myks.mytable where key1 = 1; For the above CQL, the Mutation