Hi Carlos,
durable_writes = true.
*cqlsh:test> describe test;*
* CREATE KEYSPACE test WITH replication = {'class': 'SimpleStrategy',
'replication_factor': '1'} AND durable_writes = true;*
Thanks & Regards
Kamesh.
On Wed, Nov 23, 2016 at 9:10 PM, Carlos Alonso <i...@mrcalonso.com> wrote:
> Did you configured your keyspace with durable_writes = false by any
> chance? That would make operations not reach the commitlog.
>
>
> On Wed, 23 Nov 2016 at 13:06 Kamesh <kam.iit...@gmail.com> wrote:
>
>> Hi Carlos,
>> Thanks for your response.
>> I performed few insert statements and run my application without
>> flushing. Still not able to read the commit logs.
>> However, I am able to read the commit logs of *system* and
>> *system_schema* key spaces but not able to read the application key
>> space (key space created by me).
>>
>> Thanks & Regards
>>
>> Kamesh.
>>
>> On Wed, Nov 23, 2016 at 5:24 PM, Carlos Alonso <i...@mrcalonso.com>
>> wrote:
>>
>> Hi Kamesh.
>>
>> Flushing memtables to disk causes the corresponding commitlog segments to
>> be deleted. Once the data is flushed into SSTables it can be considered
>> durable (in case of a node crash, the data won't be lost), and therefore
>> there's no point in keeping it in the commitlog as well.
>>
>> Try without flushing and see if you can see your operations there.
>>
>> Regards
>>
>> On Wed, 23 Nov 2016 at 11:04 Kamesh <kam.iit...@gmail.com> wrote:
>>
>> Hi All,
>> I am trying to read cassandra commit log files, but unable to do it. I
>> am experimenting this with 1 node cluster(laptop)
>>
>> Cassandra Version : *3.8*
>> Updated cassadra.yaml with *cdc_enabled: true*
>>
>> After executing the below statments and flushing memtables, tried
>> reading commit log files, but there are no cdc events correpsonding to
>> *test*keyspace.
>>
>> CREATE KEYSPACE *test* WITH replication = {'class': 'SimpleStrategy',
>> 'replication_factor': '1'};
>> CREATE TABLE foo (a int, b text, PRIMARY KEY(a)) WITH cdc=true;
>>
>>
>> INSERT INTO foo(a, b) VALUES (0, 'static0');
>> INSERT INTO foo(a, b) VALUES (1, 'static1');
>> INSERT INTO foo(a, b) VALUES (2, 'static2');
>> INSERT INTO foo(a, b) VALUES (3, 'static3');
>> INSERT INTO foo(a, b) VALUES (4, 'static4');
>> INSERT INTO foo(a, b) VALUES (5, 'static5');
>> INSERT INTO foo(a, b) VALUES (6, 'static6');
>> INSERT INTO foo(a, b) VALUES (7, 'static7');
>> INSERT INTO foo(a, b) VALUES (8, 'static8');
>>
>> Can someone please help us.
>>
>> Thanks & Regards
>>
>> Kamesh.
>>
>>
>>
