Hi, After running compaction tombstones get removed. So It seems like only setting GC grace seconds to lower value is not enough. Am I correct ?
Thanks, Kasun On Sun, Jan 27, 2013 at 1:31 PM, Kasun Weranga <kas...@wso2.com> wrote: > Hi, > > On Sun, Jan 27, 2013 at 12:05 AM, Michael Kjellman < > mkjell...@barracuda.com> wrote: > >> What is your gc_grace set to? >> > > Thanks for the info. > > I tried setting GcGraceSeconds for the column family to 0 since I have > only one Cassandra node. still I can see the same behavior. > > ColumnFamily: bam_phone_retail_store_kpi > Key Validation Class: org.apache.cassandra.db.marshal.BytesType > Default column value validator: > org.apache.cassandra.db.marshal.BytesType > Columns sorted by: org.apache.cassandra.db.marshal.BytesType > GC grace seconds: 0 > Compaction min/max thresholds: 4/32 > Read repair chance: 0.0 > DC Local Read repair chance: 0.0 > Replicate on write: false > Caching: KEYS_ONLY > Bloom Filter FP chance: default > Compaction Strategy: > org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy > Compression Options: > chunk_length_kb: 128 > sstable_compression: > org.apache.cassandra.io.compress.SnappyCompressor > > > I am using Cassandra 1.1.3. Appreciate your help on solving this. > > Thanks, > Kasun. > > > >> >> Are your findings before or after this time after the deletion? >> >> From: Kasun Weranga <kas...@wso2.com> >> Reply-To: "user@cassandra.apache.org" <user@cassandra.apache.org> >> Date: Saturday, January 26, 2013 10:33 AM >> To: "user@cassandra.apache.org" <user@cassandra.apache.org>, " >> d...@cassandra.apache.org" <d...@cassandra.apache.org> >> Subject: Issue when deleting Cassandra rowKeys. >> >> Hi all, >> >> When I delete some rowkeys programmatically I can see two rowkeys remains >> in the column family. I think it is due to tombstones. Is there a way to >> remove it when deleting rowkeys. Can I run compaction programmatically >> after deletion? will it remove all these remaining rowkeys. >> >> Thanks, >> Kasun. >> >>
