I tried "help update column family".
It gave me :
*valid attributes are:
- column_type: Super or Standard
- comment: Human-readable column family description. Any string is
acceptable
- rows_cached: Number or percentage of rows to cache
- row_cache_save_period: Period with which to persist the row cache, in
seconds
- keys_cached: Number or percentage of keys to cache
- key_cache_save_period: Period with which to persist the key cache, in
seconds
- read_repair_chance: Probability (0.0-1.0) with which to perform read
repairs on CL.ONE reads
- gc_grace: Discard tombstones after this many seconds
- column_metadata: null
- memtable_operations: Flush memtables after this many operations
- memtable_throughput: ... or after this many bytes have been written
- memtable_flush_after: ... or after this many seconds
- default_validation_class: null
- min_compaction_threshold: Avoid minor compactions of less than this
number of sstable files
- max_compaction_threshold: Compact no more than this number of sstable
files at once
- column_metadata: Metadata which describes columns of column family.
Supported format is [{ k:v, k:v, ... }, { ... }, ...]
Valid attributes: column_name, validation_class (see comparator),
index_type (integer), index_name.
*So what is to be used ?
And also if possible please provide information on how do that in Java using
Hector.
Thank you.
Vedarth Kulkarni,
TYBSc (Computer Science).
On Thu, Feb 3, 2011 at 2:58 AM, Jonathan Ellis <jbel...@gmail.com> wrote:
> On Wed, Feb 2, 2011 at 12:48 PM, Vedarth Kulkarni <vedar...@gmail.com>
> wrote:
> > Hello there,
> >
> > I am using Cassandra 0.7. Is there any way to change the 'compare_with'
> from
> > my program ?, I am using Hector and I am programming in Java.
>
> Yes.
>
> > Is it possible to change it from the bin/cassandra-cli ?
>
> Yes. "help update column family;"
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
>
