Pycassa xget not parsing composite column name properly

2013-06-16 Thread Oleg Dulin
I have a column family defined as: create column family LSItemIdsByFieldValueIndex_Integer with column_type = 'Standard' and comparator = 'CompositeType(org.apache.cassandra.db.marshal.IntegerType,org.apache.cassandra.db.marshal.UTF8Type)' and default_validation_class = 'UTF8Type' and

opscentrer is spying

2013-06-16 Thread Radim Kolar
in case you do not know yet, opscenter is sending certain data about your cassandra instalation back to datastax. This fact is not visibly presented to user, its same spyware crap like EHCache.

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Franc Carter
On Fri, Jun 7, 2013 at 2:44 PM, Franc Carter franc.car...@sirca.org.auwrote: Hi, We are trialling Cassandra-1.2(.4) with Leveled compaction as it looks like it may be a win for us. The first step of testing was to push a fairly large slab of data into the Column Family - we did this much

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Franc Carter
On Mon, Jun 17, 2013 at 2:47 PM, Manoj Mainali mainalima...@gmail.comwrote: With LeveledCompaction, each sstable size is fixed and is defined by sstable_size_in_mb in the compaction configuration of CF definition and default value is 5MB. In you case, you may have not defined your own value,

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Manoj Mainali
Not in the case of LeveledCompaction. Only SizeTieredCompaction merges smaller sstables into large ones. With the LeveledCompaction, the sstables are always of fixed size but they are grouped into different levels. You can refer to this page

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Franc Carter
On Mon, Jun 17, 2013 at 2:59 PM, Manoj Mainali mainalima...@gmail.comwrote: Not in the case of LeveledCompaction. Only SizeTieredCompaction merges smaller sstables into large ones. With the LeveledCompaction, the sstables are always of fixed size but they are grouped into different levels.

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Wei Zhu
default value of 5MB is way too small in practice. Too many files in one directory is not a good thing. It's not clear what should be a good number. I have heard people are using 50MB, 75MB, even 100MB. Do your own test o find a right number. -Wei - Original Message - From: Franc

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Wei Zhu
Correction, the largest I heard is 256MB SSTable size. - Original Message - From: Wei Zhu wz1...@yahoo.com To: user@cassandra.apache.org Sent: Sunday, June 16, 2013 10:28:25 PM Subject: Re: Large number of files for Leveled Compaction default value of 5MB is way too small in

Re: Large number of files for Leveled Compaction

2013-06-16 Thread Franc Carter
On Mon, Jun 17, 2013 at 3:28 PM, Wei Zhu wz1...@yahoo.com wrote: default value of 5MB is way too small in practice. Too many files in one directory is not a good thing. It's not clear what should be a good number. I have heard people are using 50MB, 75MB, even 100MB. Do your own test o find a