Short question afterwards: I have read in the documentation, that after a major compaction, minor compactions are no longer automatically trigger. Does this mean, that I have to do the nodetool compact regulary? Or is there a way to get back to the automatically minor compactions?
Thx, Br, Matthias Zeilinger Production Operation – Shared Services P: +43 (0) 50 858-31185 M: +43 (0) 664 85-34459 E: matthias.zeilin...@bwinparty.com bwin.party services (Austria) GmbH Marxergasse 1B A-1030 Vienna www.bwinparty.com -----Original Message----- From: Matthias Zeilinger [mailto:matthias.zeilin...@bwinparty.com] Sent: Dienstag, 05. März 2013 08:03 To: user@cassandra.apache.org Subject: RE: old data / tombstones are not deleted after ttl Yes it was a major compaction. I know it´s not a great solution, but I needed something to get rid of the old data, because I went out of diskspace. Br, Matthias Zeilinger Production Operation – Shared Services P: +43 (0) 50 858-31185 M: +43 (0) 664 85-34459 E: matthias.zeilin...@bwinparty.com bwin.party services (Austria) GmbH Marxergasse 1B A-1030 Vienna www.bwinparty.com -----Original Message----- From: Michal Michalski [mailto:mich...@opera.com] Sent: Dienstag, 05. März 2013 07:47 To: user@cassandra.apache.org Subject: Re: old data / tombstones are not deleted after ttl Was it a major compaction? I ask because it's definitely a solution that had to work, but it's also a solution that - in general - probably no-one here would suggest you to use. M. W dniu 05.03.2013 07:08, Matthias Zeilinger pisze: > Hi, > > I have done a manually compaction over the nodetool and this worked. > But thx for the explanation, why it wasn´t compacted > > Br, > Matthias Zeilinger > Production Operation – Shared Services > > P: +43 (0) 50 858-31185 > M: +43 (0) 664 85-34459 > E: matthias.zeilin...@bwinparty.com > > bwin.party services (Austria) GmbH > Marxergasse 1B > A-1030 Vienna > > www.bwinparty.com > > From: Bryan Talbot [mailto:btal...@aeriagames.com] > Sent: Montag, 04. März 2013 23:36 > To: user@cassandra.apache.org > Subject: Re: old data / tombstones are not deleted after ttl > > Those older files won't be included in a compaction until there are > min_compaction_threshold (4) files of that size. When you get another SS > table -Data.db file that is about 12-18GB then you'll have 4 and they will be > compacted together into one new file. At that time, if there are any rows > with only tombstones that are all older than gc_grace the row will be removed > (assuming the row exists exclusively in the 4 input SS tables). Columns with > data that is more than TTL seconds old will be written with a tombstone. If > the row does have column values in SS tables that are not being compacted, > the row will not be removed. > > > -Bryan > > On Sun, Mar 3, 2013 at 11:07 PM, Matthias Zeilinger > <matthias.zeilin...@bwinparty.com<mailto:matthias.zeilin...@bwinparty.com>> > wrote: > Hi, > > I´m running Cassandra 1.1.5 and have following issue. > > I´m using a 10 days TTL on my CF. I can see a lot of tombstones in there, but > they aren´t deleted after compaction. > > I have tried a nodetool –cleanup and also a restart of Cassandra, but nothing > happened. > > total 61G > drwxr-xr-x 2 cassandra dba 20K Mar 4 06:35 . > drwxr-xr-x 10 cassandra dba 4.0K Dec 10 13:05 .. > -rw-r--r-- 1 cassandra dba 15M Dec 15 22:04 > whatever-he-1398-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 19G Dec 15 22:04 whatever-he-1398-Data.db > -rw-r--r-- 1 cassandra dba 15M Dec 15 22:04 > whatever-he-1398-Filter.db > -rw-r--r-- 1 cassandra dba 357M Dec 15 22:04 > whatever-he-1398-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Dec 15 22:04 > whatever-he-1398-Statistics.db > -rw-r--r-- 1 cassandra dba 9.5M Feb 6 15:45 > whatever-he-5464-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 12G Feb 6 15:45 whatever-he-5464-Data.db > -rw-r--r-- 1 cassandra dba 48M Feb 6 15:45 > whatever-he-5464-Filter.db > -rw-r--r-- 1 cassandra dba 736M Feb 6 15:45 > whatever-he-5464-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Feb 6 15:45 > whatever-he-5464-Statistics.db > -rw-r--r-- 1 cassandra dba 9.7M Feb 21 19:13 > whatever-he-6829-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 12G Feb 21 19:13 whatever-he-6829-Data.db > -rw-r--r-- 1 cassandra dba 47M Feb 21 19:13 > whatever-he-6829-Filter.db > -rw-r--r-- 1 cassandra dba 792M Feb 21 19:13 > whatever-he-6829-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Feb 21 19:13 > whatever-he-6829-Statistics.db > -rw-r--r-- 1 cassandra dba 3.7M Mar 1 10:46 > whatever-he-7578-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 4.3G Mar 1 10:46 whatever-he-7578-Data.db > -rw-r--r-- 1 cassandra dba 12M Mar 1 10:46 > whatever-he-7578-Filter.db > -rw-r--r-- 1 cassandra dba 274M Mar 1 10:46 > whatever-he-7578-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 1 10:46 > whatever-he-7578-Statistics.db > -rw-r--r-- 1 cassandra dba 3.6M Mar 1 11:21 > whatever-he-7582-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 4.3G Mar 1 11:21 whatever-he-7582-Data.db > -rw-r--r-- 1 cassandra dba 9.7M Mar 1 11:21 > whatever-he-7582-Filter.db > -rw-r--r-- 1 cassandra dba 236M Mar 1 11:21 > whatever-he-7582-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 1 11:21 > whatever-he-7582-Statistics.db > -rw-r--r-- 1 cassandra dba 3.7M Mar 3 12:13 > whatever-he-7869-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 4.3G Mar 3 12:13 whatever-he-7869-Data.db > -rw-r--r-- 1 cassandra dba 9.8M Mar 3 12:13 > whatever-he-7869-Filter.db > -rw-r--r-- 1 cassandra dba 239M Mar 3 12:13 > whatever-he-7869-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 3 12:13 > whatever-he-7869-Statistics.db > -rw-r--r-- 1 cassandra dba 924K Mar 3 18:02 > whatever-he-7953-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 1.1G Mar 3 18:02 whatever-he-7953-Data.db > -rw-r--r-- 1 cassandra dba 2.1M Mar 3 18:02 > whatever-he-7953-Filter.db > -rw-r--r-- 1 cassandra dba 51M Mar 3 18:02 > whatever-he-7953-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 3 18:02 > whatever-he-7953-Statistics.db > -rw-r--r-- 1 cassandra dba 231K Mar 3 20:06 > whatever-he-7974-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 268M Mar 3 20:06 whatever-he-7974-Data.db > -rw-r--r-- 1 cassandra dba 483K Mar 3 20:06 > whatever-he-7974-Filter.db > -rw-r--r-- 1 cassandra dba 12M Mar 3 20:06 > whatever-he-7974-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 3 20:06 > whatever-he-7974-Statistics.db > -rw-r--r-- 1 cassandra dba 116K Mar 4 06:28 > whatever-he-8002-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 146M Mar 4 06:28 whatever-he-8002-Data.db > -rw-r--r-- 1 cassandra dba 646K Mar 4 06:28 > whatever-he-8002-Filter.db > -rw-r--r-- 1 cassandra dba 16M Mar 4 06:28 > whatever-he-8002-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 4 06:28 > whatever-he-8002-Statistics.db > -rw-r--r-- 1 cassandra dba 58K Mar 4 06:28 > whatever-he-8003-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 67M Mar 4 06:28 whatever-he-8003-Data.db > -rw-r--r-- 1 cassandra dba 105K Mar 4 06:28 > whatever-he-8003-Filter.db > -rw-r--r-- 1 cassandra dba 2.5M Mar 4 06:28 > whatever-he-8003-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 4 06:28 > whatever-he-8003-Statistics.db > -rw-r--r-- 1 cassandra dba 230K Mar 4 06:30 > whatever-he-8004-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 261M Mar 4 06:30 whatever-he-8004-Data.db > -rw-r--r-- 1 cassandra dba 480K Mar 4 06:30 > whatever-he-8004-Filter.db > -rw-r--r-- 1 cassandra dba 12M Mar 4 06:30 > whatever-he-8004-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 4 06:30 > whatever-he-8004-Statistics.db > -rw-r--r-- 1 cassandra dba 15K Mar 4 06:30 > whatever-he-8005-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 16M Mar 4 06:30 whatever-he-8005-Data.db > -rw-r--r-- 1 cassandra dba 39K Mar 4 06:30 > whatever-he-8005-Filter.db > -rw-r--r-- 1 cassandra dba 944K Mar 4 06:30 > whatever-he-8005-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 4 06:30 > whatever-he-8005-Statistics.db > -rw-r--r-- 1 cassandra dba 5.0K Mar 4 06:35 > whatever-he-8006-CompressionInfo.db > -rw-r--r-- 1 cassandra dba 6.7M Mar 4 06:35 whatever-he-8006-Data.db > -rw-r--r-- 1 cassandra dba 81K Mar 4 06:35 > whatever-he-8006-Filter.db > -rw-r--r-- 1 cassandra dba 2.0M Mar 4 06:35 > whatever-he-8006-Index.db > -rw-r--r-- 1 cassandra dba 4.3K Mar 4 06:35 > whatever-he-8006-Statistics.db > > The things marked in red, I guess, are the old data, but they aren´t deleted. > As you can see on the date, they are older than 10 days. > > Is there any possibility to delete them? > > > Here is also the schema of the CF: > create column family whatever > with column_type = 'Standard' > and comparator = 'AsciiType' > and default_validation_class = 'AsciiType' > and key_validation_class = 'AsciiType' > and read_repair_chance = 0.0 > and dclocal_read_repair_chance = 0.0 > and gc_grace = 0 > and min_compaction_threshold = 4 > and max_compaction_threshold = 32 > and replicate_on_write = false > and compaction_strategy = > 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy' > and caching = 'KEYS_ONLY' > and compression_options = {'sstable_compression' : > 'org.apache.cassandra.io.compress.SnappyCompressor'}; > > > Br, > Matthias Zeilinger > Production Operation – Shared Services > > P: +43 (0) 50 858-31185<tel:%2B43%20%280%29%2050%20858-31185> > M: +43 (0) 664 85-34459<tel:%2B43%20%280%29%20664%2085-34459> > E: > matthias.zeilin...@bwinparty.com<mailto:matthias.zeilinger@bwinparty.c > om> > > bwin.party services (Austria) GmbH > Marxergasse 1B > A-1030 Vienna > > www.bwinparty.com<http://www.bwinparty.com> > >
