Monday, November 12, 2012 4:24 PM
> Subject: Re: read request distribution
>
> Somewhat recently the Ownership column was changed to Effective Ownership.
>
> Previously the formula was essentially 100/. Now it's 100* factor>/. So in previous releases of Cassandra it would be 100
To: user@cassandra.apache.org
Sent: Monday, November 12, 2012 4:24 PM
Subject: Re: read request distribution
Somewhat recently the Ownership column was changed to Effective Ownership.
Previously the formula was essentially 100/. Now it's 100*/. So in previous releases of Cassand
Somewhat recently the Ownership column was changed to Effective
Ownership.
Previously the formula was essentially 100/. Now it's
100*/. So in previous releases of Cassandra
it would be 100/12 = 8.33, now it would be closer to 25% (8.33*3
(assuming a replication factor of three)).
Kirk
On M
Hi all,
On an unrelated observation of the below readings, it looks like all the 3
nodes own 100% of the data. This confuses me a bit. We have a 12 node
cluster with RF=3 but the effective ownership is shown as 8.33 % .
So here is my question. How is the ownership calculated : Is Replica factor
c
two?
Thanks for the explanation of QUORUM, it clears a lot of confusion.
-Wei
From: Tyler Hobbs
To: user@cassandra.apache.org; Wei Zhu
Sent: Monday, November 12, 2012 12:43 PM
Subject: Re: read request distribution
Whichever node gets the initial Thrift
he other two.
>
> Thanks.
> -Wei
>
> --
> *From:* Tyler Hobbs
> *To:* user@cassandra.apache.org; Wei Zhu
> *Sent:* Saturday, November 10, 2012 3:15 PM
> *Subject:* Re: read request distribution
>
> When you read at quorum, a normal rea
lower than the other two given the fact it's in charge of the
"wider" columns than the other two.
Thanks.
-Wei
From: Tyler Hobbs
To: user@cassandra.apache.org; Wei Zhu
Sent: Saturday, November 10, 2012 3:15 PM
Subject: Re: read request distrib
ble Writes: true
> Options: [replication_factor:3]
>
> I am really confused by the Read Count number from nodetool cfstats
>
> Really appreciate any hints.
> -Wei
>
> --
> *From:* Wei Zhu
> *To:* Cassandr usergroup
> *Sent:* Thursda
, November 8, 2012 9:37 PM
Subject: read request distribution
Hi All,
I am doing a benchmark on a Cassandra. I have a three node cluster with RF=3. I
generated 6M rows with sequence number from 1 to 6m, so the rows should be
evenly distributed among the three nodes disregarding the replic
Hi All,
I am doing a benchmark on a Cassandra. I have a three node cluster with RF=3. I
generated 6M rows with sequence number from 1 to 6m, so the rows should be
evenly distributed among the three nodes disregarding the replicates.
I am doing a benchmark with read only requests, I generate re
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