Makes sense. Thanks!
-Original Message-
From: Joseph Lynch [mailto:joe.e.ly...@gmail.com]
Sent: Wednesday, September 26, 2018 9:02 PM
To: dev@cassandra.apache.org
Subject: Re: MD5 in the read path
>
> Thank you all for the response.
> For RandomPartitioner, MD5 is used to avoid
dh
> > > >
> > > > On Wed, Sep 26, 2018 at 7:14 PM Jeff Jirsa wrote:
> > > >
> > > > > In some installations, it's used for hashing the partition key to
> > find
> > > > the
> > > > > host ( RandomPartition
Hi all,
I have a question about MD5 being used in the read path in Cassandra.
I wanted to understand what exactly it is being used for and why not something
like CRC is used which is less complex in comparison to MD5.
Thanks,
Preetika
Hi all,
I am trying to understand where exactly digests and checksums are being used in
Cassandra.
In my understanding,
Murmur3 hashing is used with murmur3 partitioning scheme which is also the
default configuration.
CRC32 is used for data corruption and repair.
MD5 is used for partitioning
time aren't the same as the ones provided at compile time.
It might help to run with --keep-test-dir and then check the test directory for
Cassandra logs and review the classpath to make sure everything Cassandra is
being loaded up with makes sense.
Ariel
On Wed, Mar 28, 2018, at 5:09 PM, T
re lost when running in sudo.
>
>
> The advantage of virtualenv is not needing to mess with system
> packages at
> > all so sudo is inadvisable when creating, activating, and pip
> > installing things.
> >
> > You might need to use pip3 instead of pip, bu
``pip install -r
/path/to/cassandra-dtest/requirements.txt``
Regards,
Ariel
On Mon, Mar 26, 2018, at 11:13 AM, Tyagi, Preetika wrote:
> I was able to run requirements.txt with success. Below is the error I get:
>
> Traceback (most recent call last):
> File "/usr/local/lib/python2.
` creates an `src` directory with
appropriate branches of ccm and cassandra-driver checked out.
If you have run `pip3 install -r requirements.txt`, then something else is
wrong and we need the complete error log.
On 2018/03/23 20:22:47, "Tyagi, Preetika" <preetika.ty...@intel.co
Hi All,
I am trying to setup and run Cassandra-dtests so that I can write some tests
for a JIRA ticket I have been working on.
This is the repo I am using: https://github.com/apache/cassandra-dtest
I followed all the instructions and installed dependencies.
However, when I run "pytest
just begun when the flush
triggered). It helps avoid these race conditions on either side of the
equation.
On 13 February 2018 at 22:09, Tyagi, Preetika <preetika.ty...@intel.com>
wrote:
> Hi all,
>
> I'm trying to understand the behavior of memtable when writes/flus
Hi all,
I'm trying to understand the behavior of memtable when writes/flush operations
are going on in parallel.
In my understanding, once a memtable is full it is queued for flushing and a
new memtable is created for ongoing write operations.
However, I was looking at the code and it looks
(i.e. "time" in this case).
No. it will skip to the section of the partition with time = '12:00'.
Cassandra should be smart enough to avoid reading the whole partition.
On 31 January 2018 at 06:57, Tyagi, Preetika <preetika.ty...@intel.com>
wrote:
> So that means more than one nodes can b
github account
On 01/30/2018 03:47 PM, Tyagi, Preetika wrote:
> Hi all,
>
> I'm working on the JIRA ticket CASSANDRA-13981 and pushed a patch
> yesterday, however, I have been suggested to create a branch in my
> github account and then push all changes into that. The patch is t
med on the token of a partition key, not on the
value.
-Jeremiah
> On Jan 30, 2018, at 12:21 PM, Tyagi, Preetika <preetika.ty...@intel.com>
> wrote:
>
> Hi All,
>
> I have a quick question on Cassandra's behavior in case of partition keys. I
> know that ra
Hi all,
I'm working on the JIRA ticket CASSANDRA-13981 and pushed a patch yesterday,
however, I have been suggested to create a branch in my github account and then
push all changes into that. The patch is too big hence this seems to be a
better approach.
I haven't done it before so wanted to
Hi All,
I have a quick question on Cassandra's behavior in case of partition keys. I
know that range queries are allowed in general, however, is it also allowed on
partition keys as well? The partition key is used as an input to determine a
node in a cluster, so I'm wondering how one can
, cell.timestamp());
return timestamp;
}
On Tue, Jan 23, 2018 at 4:22 PM, Tyagi, Preetika <preetika.ty...@intel.com>
wrote:
> Hi all,
>
> I'm trying to understand the behavior of simple and complex columns in
> Cassandra.
> I was looking at UnfilteredSerializer.java, seri
Hi all,
I'm trying to understand the behavior of simple and complex columns in
Cassandra.
I was looking at UnfilteredSerializer.java, serializeRowBody() checks for a
timestamp flag and then only it writes it. In case of writeComplexColumn(),
there is no timestamp being written. Also, as per my
Hi,
I have a quick question on the code formatting for Cassandra using IntelliJ.
I found a code formatter JAR here for Cassandra:
https://wiki.apache.org/cassandra/CodeStyle?action=AttachFile=view=intellij-codestyle.jar
Does someone know how it can be imported to IntelliJ-Cassandra project
Hi all,
When I click on "Submit Patch" option, it pops up a new screen where it asks
for a bunch of details including Fix Version(s). Does the patch need to be
synced up with the latest repo or I can just choose which version I worked with
(which may not necessarily be the latest and hence one
Dec 21, 2017 at 2:02 PM, Tyagi, Preetika <preetika.ty...@intel.com>
wrote:
> Hi,
>
> If I need to get the replication factor of a given keyspace in nodetool
> commands (e.g. status), how can I do that? I'm trying to figure it out for a
> JIRA item I'm working on.
>
> I
Hi,
If I need to get the replication factor of a given keyspace in nodetool
commands (e.g. status), how can I do that? I'm trying to figure it out for a
JIRA item I'm working on.
I tried using the below:
Keyspace keyspace = Keyspace.open(keyspaceName);
Int rf =
Hi all,
I might be missing something very simple here but it seems I cannot find a way
to build tools/nodetool/* source files correctly in my dev set up.
For example, when I make a simple code change in line 105
(System.out.println("Status=Up/Down");" in Status.java to print something else
Thu, Sep 21, 2017 at 12:29 PM, Tyagi, Preetika <preetika.ty...@intel.com>
> wrote:
>
>> Hi all,
>>
>> I downloaded and built the Cassandra project from GitHub and ran all unit
>> tests by running the below command:
>>
>> ant test -Dtest.runners=4
>
Hi all,
I downloaded and built the Cassandra project from GitHub and ran all unit tests
by running the below command:
ant test -Dtest.runners=4
When it finished, I saw >99% success rate, however, it also showed some number
under "Skipped" tests as well. Does someone know why would it skip
Hi,
I'm trying to understand how Regions are being allocated and deallocated in
Memtable. I can see that the same region is being used to allocate more size
until the max region limit is hit.
However, once the max limit is reached, the current region is set to null and
eventually new Region
Sep 19, 2017 at 9:34 AM, Tyagi, Preetika <preetika.ty...@intel.com>
wrote:
> Hi all,
>
> I'm trying to figure out different ways in which one can contribute to
> Cassandra. I know one can create a ticket and assign it to himself to
> work on it. However, is it also
Hi all,
I'm trying to figure out different ways in which one can contribute to
Cassandra. I know one can create a ticket and assign it to himself to work on
it. However, is it also allowed to assign and work on an already existing
ticket created by someone else?
Thanks,
Preetika
g configuration for Cassandra daemon
> * License header for Java source files
> * Cassandra code style
> * Inspections
You can just run `generate-idea-files` and then open the project in IDEA.
Code style settings should be automatically picked up by IDEA.
On Fri, 15 Sep 2017 at 14:46 Tyag
+ 1
This is a good idea.
-Original Message-
From: beggles...@apple.com [mailto:beggles...@apple.com]
Sent: Friday, September 15, 2017 8:29 AM
To: dev@cassandra.apache.org
Subject: Re: Proposal: Closing old, unable-to-repro JIRAs
+1 to that
On September 14, 2017 at 4:50:54 PM, Jeff
Hi all,
I was trying to configure the Cassandra code formatter and downloaded
IntelliJ-codestyle.jar from this link:
https://wiki.apache.org/cassandra/CodeStyle
After extracting this JAR, I was able to import codestyle/Default_1_.xml into
my project and formatting seemed to work.
However,
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