We've seen a need for an LDAP authentication implementation for Apache
Cassandra so we've gone ahead and created an open source implementation
(ALv2) utilising the pluggable auth support in C*.
Now, I'm positive there are multiple implementations floating around that
haven't been open sourced, and
Super great, thank you for this contribution Kurt!
On Thu, Jul 5, 2018 at 1:49 PM, kurt greaves wrote:
> We've seen a need for an LDAP authentication implementation for Apache
> Cassandra so we've gone ahead and created an open source implementation
> (ALv2) utilising the pluggable auth support
Thanks Alain,
Wanted to just circle back on all the above..
Thanks everyone for your help, and input.
I'm glad to hear someone else did a site-to-site tunnel with Cassandra
between regions. When originally setting up all the docs and information
all preached public IP's. I can totally understand
That looks a bit to me like it isnt stuck but just a long running compaction.
Can you include the output of `nodetool compactionstats` and the `nodetool
cfstats` with schema for the table thats being compacted (redacted names if
necessary).
Can stop compaction with `nodetool stop COMPACTION` or
Anyone ever make stupid mistakes? :)
TL/DR: I ran rebuild on a node that is already up and running in an
existing data center.. what happens?
This is what I did...
Assume I have DC_syndey and adding DC_sydney_new
But also have a DC_us..
from a node in DC_sydney_new I intended to type
"rebuild --
You have just some extra data on those machines where you ran rebuild.
Compaction will eventually take care of that.
Nothing really harmful if you have the disk space available.
Hannu
> Randy Lynn kirjoitti 5.7.2018 kello 19.19:
>
> Anyone ever make stupid mistakes? :)
>
> TL/DR: I ran reb
Hi Cris,
Thank you for reply.
I already have tried to run "nodetool stop compaction" and this does not
help. I have restarted each node in cluster one by one and compaction
starts again. It gets stuck on same table.
Following in 'nodetool compactionstats' output. It's stuck at *1336035468*
for m
Hi users,
Querying multiple primary keys can be achieved using IN operator but it
cause load only on single node and which inturn causes READ timeout issues.
Calling asynchronously each primary key is also not a right choice for big
partition key.
Can anyone suggest me best practice to query it and
Either of those solutions are fine, you just need to consider
throttling/limiting the number of concurrent queries (either in the
application, or on the server side) to avoid timeouts.
On Thu, Jul 5, 2018 at 11:16 AM, Goutham reddy
wrote:
> Hi users,
> Querying multiple primary keys can be ach
We are seeing the CPU spike only when Jmx metrics are exposed using
Jmx_exporter. tried setting up imx authentication still see cpu spike. if i
stop using jmx exporter we don’t see any cpu spike. is there any thing we have
to tune to make work with Jmx_exporter?
> On Jun 14, 2018, at 2:18 PM
we have Qualys security scan running causing the cpu spike. We are seeing the
CPU spike only when Jmx metrics are exposed using Jmx_exporter. tried setting
up imx authentication still see cpu spike. if i stop using jmx exporter we
don’t see any cpu spike. is there any thing we have to tune t
Hi,
I woud like to know how people are doing rolling upgrade of Casandra clustes
when there is a change in native protocol version say from 2.1 to 3.11. During
rolling upgrade, if client application is restarted on nodes, the client driver
may first contact an upgraded Cassandra node with v4 and
Thank you Jeff for the solution.
On Thu, Jul 5, 2018 at 12:01 PM Jeff Jirsa wrote:
> Either of those solutions are fine, you just need to consider
> throttling/limiting the number of concurrent queries (either in the
> application, or on the server side) to avoid timeouts.
>
>
>
> On Thu, Jul 5,
Hello Anuj,
The 2nd workaround should work. As app will auto discover all the other nodes.
Its the first contact with the node that app makes determines the protocol
version. So if you remove the newer version nodes from the app configuration
after the startup, it will auto discover the newer n
other concerns:
there is no replication between 2.11 and 3.11, store in hints, and replay
hints when remote is same version. have to do repair if over window. if
read quorum 2/3, will get error.
in case rollback to 2.11, can not read new version 3.11 data files, but
online rolling upgrade, some
There is replication between 2.1 and 3.x, but not hints. You will have to
repair past the window, but you should be doing that anyway if you care about
tombstones doing the right thing
Read quorum with 2/3 in either version should work fine - if it gives you an
error please open a JIRA with ste
> On Jul 5, 2018, at 12:45 PM, Anuj Wadehra
> wrote:
>
> Hi,
>
> I woud like to know how people are doing rolling upgrade of Casandra clustes
> when there is a change in native protocol version say from 2.1 to 3.11.
> During rolling upgrade, if client application is restarted on nodes, the
Hi Chris,
Compaction process finally finished. It took long time though.
Thank you very much for all your help.
Please let me know if you have any guidelines to make future compaction
processes faster.
Thanks & Regards,
Atul Atri.
On 5 July 2018 at 22:05, atul atri wrote:
> Hi Cris,
>
> Than
You probably have a very large partition in that file. Nodetool cfstats
will show you the largest compacted partition now - I suspect it's much
higher than before.
On Thu, Jul 5, 2018 at 9:50 PM, atul atri wrote:
> Hi Chris,
>
> Compaction process finally finished. It took long time though.
>
>
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