On Wed, Sep 12, 2012 at 11:42 PM, aaron morton wrote:
> > What is "MM" stands for? million ?
>
> Yup.
>
> No idea why I do that.
I should note that some people use "1MM" to indicate "1 million
milion" ie. 1 billion, so this might be doubly confusing for some ;)
--
mithrandi, i Ainil en-Balandor,
On Wed, Oct 31, 2012 at 7:14 PM, Wei Zhu wrote:
> I try to use CQL3 to create CF with composite columns,
>
> CREATE TABLE Friends (
> ... user_id bigint,
> ... friend_id bigint,
> ... status int,
> ... source int,
> ... created time
On Wed, Nov 7, 2012 at 9:46 PM, Marcelo Elias Del Valle
wrote:
> Service killed by signal 9
Signal 9 is SIGKILL. Assuming that you're not killing the process
yourself, I guess the most likely cause of this is the OOM killer. If
you check /var/log/kern.log or dmesg you should see a message
confirm
On Thu, Dec 20, 2012 at 11:26 AM, Vasileios Vlachos
wrote:
> Initially we were thinking the same thing, that an explanation would
> be that the "wrong" node could be down, but then isn't this something
> that hinted handoff sorts out?
If a node is partitioned from the rest of the cluster (ie. the
On Sun, Dec 23, 2012 at 9:25 PM, aaron morton wrote:
> In this example:
>
> CREATE TABLE seen_ships (
>day text,
>time_seen timestamp,
>shipname text,
>PRIMARY KEY (day, time_seen)
>);
> http://www.datastax.com/dev/blog/whats-new-in-cql-3-0
>
> * day is the int
If you use PRIMARY KEY ((a, b)) instead of PRIMARY KEY (a, b), the
partition key will be a composite of both the a and b values; with
PRIMARY KEY (a, b), the partition key will be a, and the column names
will be a composite of b and the column name (c being the only regular
column here).
I am gues
Cassandra only stores keys, not columns; once all of the columns in a
row have been deleted, there is nothing left to delete, although the
row may still appear in some queries (with no columns) until the
tombstones for those columns have been removed (which occurs during
compaction once gc_grace_se
On Fri, Mar 1, 2013 at 12:39 AM, Hiller, Dean wrote:
> Isn't it true if I have 6 nodes, I could run nodetool repair on just 2
> nodes(RF=3) instead of using nodetool repair –pr???
>
> What is the advantage of –pr then?
I think the main advantage of nodetool is that you don't have to
calculate /
On 13 February 2014 11:39, David Montgomery wrote:
> [program:cassandra]
> command = /var/apache-cassandra-<%=@version%>/bin/cassandra -f
I'm not familiar with supervisor specifically, but most process
supervisors want the supervised process not to fork; that is, remove
the -f from the command he
On 14 February 2014 03:03, David Montgomery wrote:
> I only added the -f flag after the first time it did not work. If I dont
> use the -f flag.
>
> cassandra_server:cassandra FATAL Exited too quickly (process log
> may have details)
Whoops, I got mixed up; the -f param to Cassand
I'm trying to model a schema for a logging storage system in
Cassandra: Log messages consist of a timestamp, message, and some
other arbitrary key/value pairs. Querying would primarily be done
based on timestamp ranges; I will probably be doing filtering based on
matches against the key/value pairs
On Wed, Aug 10, 2011 at 3:49 PM, earltbj wrote:
> Any idea what could be causing this?
See https://wiki.apache.org/cassandra/FAQ#jna
--
mithrandi, i Ainil en-Balandor, a faer Ambar
On Fri, Sep 23, 2011 at 1:09 AM, Alexis Lê-Quôc wrote:
> For data accessed through a single path, I use the same trick: pickle, bz2
> and insert.
Note that unpickling a pickle in Python involves a) arbitrary code
execution, and b) relies on your code being the same (or close enough)
to what it wa
On Sun, Jan 22, 2012 at 10:11 AM, Eric Czech wrote:
> That's likely because there wasn't previously a validation class for the
> "age" column before you added that index. In other words, the CLI doesn't
> display values in a UTF8 format until you tell it to so I think the value
> "8" is correct a
On Jul 4, 2012 2:02 PM, "Vasileios Vlachos"
wrote:
>
> Any ideas what could be causing strange message lengths?
One cause of this that I've seen is a client using unframed Thrift
transport while the server expects framed, or vice versa. I suppose a
similar cause could be something that is not a T
On Mon, May 27, 2013 at 11:38 PM, Matthew Hillsborough <
matthew.hillsboro...@gmail.com> wrote:
> Originally what I thought of doing was creating a column family in
> Cassandra named `ride_events`. Each row key would be a rideID that's simply
> an integer. I would then arbitrarily create columns w
See http://www.datastax.com/dev/blog/thrift-to-cql3 for more information.
On Sat, Jul 13, 2013 at 1:19 AM, Eric Stevens wrote:
> If you're creating dynamic columns via Thrift interface, they will not be
> reflected in the CQL3 schema. I would recommend not mixing paradigms like
> that, either
On Fri, Jul 12, 2013 at 10:38 AM, aaron morton wrote:
> CREATE INDEX ON conv_msgdata_by_participant_cql(msgReadFlag);
>
> On general this is a bad idea in Cassandra (also in a relational DB IMHO).
> You will get poor performance from it.
>
Could you elaborate on why this is a bad idea?
--
mi
On Mon, Jul 15, 2013 at 12:26 AM, aaron morton wrote:
> Aaron Morton can confirm but I think one problem could be that to create
> an index on a field with small number of possible values is not good.
>
> Yes.
> In cassandra each value in the index becomes a single row in the internal
> secondary
I saw nobody has responded to this so I thought I'd take a shot.
On Fri, Sep 20, 2013 at 6:13 AM, Keith Bogs wrote:
>
> Key 1379649588:body 1379649522:body 1379649123:title
> a.com/1.html """A"
> a.com/2.html """B"
> b.com/1.html ""
On Tue, Jul 20, 2010 at 9:09 PM, Peter Schuller
wrote:
>> CassandraDaemon.java (line 83) Uncaught exception in thread
>> Thread[pool-1-thread-37895,5,main]
>> java.lang.OutOfMemoryError: Java heap space
>> at
>> org.apache.thrift.protocol.TBinaryProtocol.readStringBody(TBinaryProtocol.jav
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