>> Have you checked in spam mail folder? Sometimes it lands up there.
>>
>> On Mon, May 8, 2023, 20:52 ranju goel wrote:
>>
>>> Hi,
>>>
>>>
>>>
>>> I am getting incorrect username/password error message while logging in
>>
>>
>>
>> I am getting incorrect username/password error message while logging in
>> ASF Cassandra JIRA .
>>
>> username - rcass
>>
>>
>> After this, I requested for resetting password and received
>> Reset password link sent successfully
>> But no such link received.
>>
>> Kindly suggest.
>>
>>
>> Regards
>>
>> Ranju
>>
>
Have you checked in spam mail folder? Sometimes it lands up there.
On Mon, May 8, 2023, 20:52 ranju goel wrote:
> Hi,
>
>
>
> I am getting incorrect username/password error message while logging in
> ASF Cassandra JIRA .
>
> username - rcass
>
>
> After this, I
Hi,
I am getting incorrect username/password error message while logging in ASF
Cassandra JIRA .
username - rcass
After this, I requested for resetting password and received
Reset password link sent successfully
But no such link received.
Kindly suggest.
Regards
Ranju
Correct. It's also worth noting that if you delete log files and restart C*
the CompactionLogger will then find the earliest available file number
starting from 0. You'll have to explore what you can use to configure
proper log rotation as the CompactionLogger doesn't use the logging system
Hi Erik,
thank you for the link, very instructive.
To summarise my understanding of your mail, the code and my experiments:
- as long as the compaction logger is running it will write into the same
“compaction.log" file
- if a new logger gets started (for example through restart of the
As far as I'm aware, the compaction logs don't get rotated. It looks like
it just increments the sequence number by 1.
You can have a look at the logic here --
https://github.com/apache/cassandra/blob/cassandra-3.11.6/src/java/org/apache/cassandra/db/compaction/CompactionLogger.java#L303-L318.
Hi,
Does anybody know the configuration for Extended Compaction Logging[1]? When is
a log rotation triggered and how many files are kept?
I did some googling, found [2] and checked the configuration in
/etc/cassandra/logback.xml, neither does mention anything about compaction
logging.
I am
evel as I
haven't actually tried that myself.
For most software I'd advise against running DEBUG in production, however
for Cassandra you probably still want to keep DEBUG on. Some work has been
done to improve logging, but there is still a large amount of useful info
exposed in the debug logs that wi
Thank you all,
Kane: Is there a list of logger names available for each task like
compaction, memtable flush etc?
Paulo: I have a cluster with a very high number of tables, yes just during
the boot-up time, I see a very huge number of logs in the range > 100Mb. So
I am trying to tune the logg
>> log level of the log entries. For example if an entry is logged at DEBUG
>> level, you cannot reconfigure it to be logged at INFO since the levels
>> are defined in the code.
>>
>> Also, I wouldn't disable debug logging if I were managing a cluster (but
>>
NFO since the levels
> are defined in the code.
>
> Also, I wouldn't disable debug logging if I were managing a cluster (but
> I'm sure someone has a different preference). If there's a problem, it will
> make it very difficult to troubleshoot and identify the cause. Most of
> those
You can configure which log levels get logged but you can't change the log
level of the log entries. For example if an entry is logged at DEBUG level,
you cannot reconfigure it to be logged at INFO since the levels are defined
in the code.
Also, I wouldn't disable debug logging if I were managing
Hello,
I recently moved from C* version 2.1.16 to 3.11.6 and I see a lot of
difference in logging between these two versions. Can someone please help
me with the below questions?
- Default log level in 2.1.16 is INFO
<https://github.com/apache/cassandra/blob/cassandra-2.1.16/c
t encrypted.
>
> I wrote this up here a few months ago:
> http://www.redshots.com/finding-rogue-cassandra-queries/
>
> I hope this helps.
>
> Paul
>
>
>
>
>
> On 26 Sep 2019, at 10:21, Laxmikant Upadhyay
> wrote:
>
> One of the way to figure out what q
://www.redshots.com/finding-rogue-cassandra-queries/
I hope this helps.
Paul
> On 26 Sep 2019, at 10:21, Laxmikant Upadhyay wrote:
>
> One of the way to figure out what queries have run is to use audit logging
> plugin supported in 3.x, 2.2
> https://github.com/Ericsson
One of the way to figure out what queries have run is to use audit
logging plugin supported in 3.x, 2.2
https://github.com/Ericsson/ecaudit
On Thu, Sep 26, 2019 at 2:19 PM shalom sagges
wrote:
> Thanks for the quick response Jeff!
>
> The EXECUTE lines are a prepared
gt;> appears many times (a lot more then the queries I wish to track).
>>
>> Can someone help me understand this type of logging?
>> Thanks!
>> DEBUG [SharedPool-Worker-88] 2019-09-25 06:29:16,793 Message.java:437 -
>> Received: EXECUTE 2a6022010ffaf55229262de917
55229262de917657d0f with 6 values at consistency LOCAL_QUORUM,
> v=3 but I don't understand what information I can gain from that and why it
> appears many times (a lot more then the queries I wish to track).
>
> Can someone help me understand this type of logging?
> Thanks!
> DEBUG [SharedP
).
Can someone help me understand this type of logging?
Thanks!
DEBUG [SharedPool-Worker-88] 2019-09-25 06:29:16,793 Message.java:437 -
Received: EXECUTE 2a6022010ffaf55229262de917657d0f with 6 values at
consistency LOCAL_QUORUM, v=3
DEBUG [SharedPool-Worker-87] 2019-09-25 06:29:16,780 Message.java:437
t; Hi guys,
>
>
>
> Can standard OSS Cassandra 3 do logging of who connects to it? We have a
> cluster in 3 DCs and our devs want to see if the client is crossing across
> DC (even though they have DCLOCAL set from their DS driver).
>
>
>
> Thanks,
> James
>
>
018 kello 21.37:
>
> Hi guys,
>
> Can standard OSS Cassandra 3 do logging of who connects to it? We have a
> cluster in 3 DCs and our devs want to see if the client is crossing across DC
> (even though they have DCLOCAL set from their DS driver).
>
> Thanks,
> James
Hi guys,
Can standard OSS Cassandra 3 do logging of who connects to it? We have a
cluster in 3 DCs and our devs want to see if the client is crossing across DC
(even though they have DCLOCAL set from their DS driver).
Thanks,
James
gor,
>>>
>>> If you are using java driver, you can log slow queries on client side
>>> using QueryLogger.
>>> https://docs.datastax.com/en/developer/java-driver/2.1/manual/logging/
>>>
>>> Slow Query logger for server was introduced in C* 3.10 ve
g slow queries on client side
>> using QueryLogger.
>> https://docs.datastax.com/en/developer/java-driver/2.1/manual/logging/
>>
>> Slow Query logger for server was introduced in C* 3.10 version. Details:
>> https://issues.apache.org/jira/browse/CASSANDRA-12403
>>
&
g QueryLogger.
>> https://docs.datastax.com/en/developer/java-driver/2.1/manual/logging/
>>
>> Slow Query logger for server was introduced in C* 3.10 version. Details:
>> https://issues.apache.org/jira/browse/CASSANDRA-12403
>>
>> Regards,
>> Bhuvan
>&
stax.com/en/developer/java-driver/2.1/manual/logging/
>
> Slow Query logger for server was introduced in C* 3.10 version. Details:
> https://issues.apache.org/jira/browse/CASSANDRA-12403
>
> Regards,
> Bhuvan
>
> On Sun, Feb 19, 2017 at 12:59 AM, Igor Leão <igor.l...@ubee.i
Hi Igor,
If you are using java driver, you can log slow queries on client side using
QueryLogger.
https://docs.datastax.com/en/developer/java-driver/2.1/manual/logging/
Slow Query logger for server was introduced in C* 3.10 version. Details:
https://issues.apache.org/jira/browse/CASSANDRA-12403
Hi there,
I'm wondering how to log queries from Cassandra. These queries can be
either slow queries or all queries. The only constraint is that I should do
this on server side.
I tried using `nodetool settraceprobability`, which writes all queries to
the keyspace `system_traces`. When I try to
e case, there are about 1000 tables. The status-logger is logging too
many information for each tables.
I wonder is there a way to reduce this log? for example, only print the thread
pool information.
Thanks.
Hi,
Currently StatusLogger will log info when there are dropped messages or GC
more than 200 ms.
In my use case, there are about 1000 tables. The status-logger is logging
too many information for each tables.
I wonder is there a way to reduce this log? for example, only print the
thread pool
Greetings,
What is the right way to configure Cassandra logging, so it would log all
the connects and disconnects?
Thanks,
Oleg
Sam, Paulo,
One more question on logging. Can I add IP and hostname to the log message?
If it is possible, can you give me example of how I would need to
change %-5level %date{HH:mm:ss,SSS} %msg%n to add this
information?
Thanks,
Oleg
On Tue, Jan 26, 2016 at 4:42 PM, oleg yusim <ole
Greetings,
I decided to put together a separate thread with logging configuration
questions I have (I'm trying to figure out what from security best
practices on logging Cassandra can and can't do):
1) Can Cassandra log IP and hostname of the host, DB resides at?
2) Can Cassandra log IP
t;
>> 2016-01-25 12:30 GMT-03:00 oleg yusim <olegyu...@gmail.com>:
>>
>>> Paulo,
>>>
>>> Ideally - all the actions (security purposes, preserving completness of
>>> the audit trail). How about this approach:
>>> http://www.codelord.net/2010
What kind of actions? nodetool/system actions or cql statements?
You could probably achieve identity-based logging with logback Mapped
Diagnostic Context (MDC - logback.qos.ch/manual/mdc.html), but you'd need
to patch your own Cassandra jars in many locations to provide that
information
I want to try to re-phrase my question here... what I'm trying to achieve
is identity-based logging. I.e. every log message in file should start with
username of the user, who initiated this action. Would that be possible to
achieve? If so, can you give me a brief example?
Thanks,
Oleg
On Thu
e details on that.
>
> 2016-01-25 12:30 GMT-03:00 oleg yusim <olegyu...@gmail.com>:
>
>> Paulo,
>>
>> Ideally - all the actions (security purposes, preserving completness of
>> the audit trail). How about this approach:
>> http://www.codelord.net/2010/
-1123 for more details on that.
2016-01-25 12:30 GMT-03:00 oleg yusim <olegyu...@gmail.com>:
> Paulo,
>
> Ideally - all the actions (security purposes, preserving completness of
> the audit trail). How about this approach:
> http://www.codelord.net/2010/08/27/logging-with-a-con
Paulo,
Ideally - all the actions (security purposes, preserving completness of the
audit trail). How about this approach:
http://www.codelord.net/2010/08/27/logging-with-a-context-users-in-logback-and-spring-security/
?
Would that work? Or you would rather suggest to go MDC way?
Thanks,
Oleg
suggestions?
Thanks,
Oleg
On Thu, Jan 21, 2016 at 1:30 PM, Joel Knighton <joel.knigh...@datastax.com>
wrote:
> Cassandra uses logback as its backend for logging.
>
> You can find information about configuring logging in Cassandra by
> searching for "Configuring loggin
Cassandra uses logback as its backend for logging.
You can find information about configuring logging in Cassandra by
searching for "Configuring logging" on docs.datastax.com and selecting the
documentation for your version.
The documentation for PatternLayouts (the pattern string a
Sure. I updated the YCSB code to pass a client ID as input parameter and
then stored the clientID in the properties and used it in the DBWrapper
class for logging per operation
*YCSB/core/src/main/java/com/yahoo/ycsb/DBWrapper.java*
Please let me know if you need more information and I can share
HI Jatin;
besides enabling Tracing, is there any other way to get the task done ? (to
log the client ID for every operation)Please share with the community the
solution, so that we could collectively learn from your experience.
cheersJan/
On Friday, February 20, 2015 12:48 PM,
Never mind, got it working.
Thanks :)
—
Jatin Ganhotra
Graduate Student, Computer Science
University of Illinois at Urbana Champaign
http://jatinganhotra.com
http://linkedin.com/in/jatinganhotra
On Wed, Feb 18, 2015 at 7:09 PM, Jatin Ganhotra jatin.ganho...@gmail.com
wrote:
Hi,
I'd like to
Hi,
I'd like to log the client ID for every operation performed by the YCSB on
my Cassandra cluster.
The purpose is to identify analyze various other consistency measures
other than eventual consistency.
I wanted to know if people have done something similar in the past. Or am I
missing
In the logging configuration that ships with the cassandra distribution
(log4j-server.properties in 2.0, and logback.xml in 2.1), the rolling file
appender is configured to print the file name and the line number of each
logging event:
log4j.appender.R.layout.ConversionPattern=%5p [%t] %d
On Wed, Nov 26, 2014 at 10:39 AM, Matt Brown m...@mattnworb.com wrote:
Both the log4j
http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html
and logback documentation http://logback.qos.ch/manual/layouts.html warn
that generating the filename/line information is not
On Wed, Nov 26, 2014 at 11:57 AM, Matt Brown m...@mattnworb.com wrote:
I created https://issues.apache.org/jira/browse/CASSANDRA-8379 and
attached patches against trunk and the cassandra-2.0 branch.
Sweet. Thanks for closing the loop and letting the list know the JIRA info.
=Rob
Hi,
We have two data-center, we configured PasswordAuthenticator on each node,
we increment the RF of system_auth to the number of nodes (each
data-center) as recommended.
We can logged-in via cqlsh without problem, but when i stop cassandra on
all nodes of a data-center we can't logged in in the
Hi Adil,
What Cassandra version are you using? Are you using the default user or a
non-default user?
Mark
On 20 November 2014 08:20, Adil adil.cha...@gmail.com wrote:
Hi,
We have two data-center, we configured PasswordAuthenticator on each node,
we increment the RF of system_auth to the
cassandra version 2.1.2
with the default user
we create another user and with this one we could login even if only one
node is up
2014-11-20 15:16 GMT+01:00 Mark Reddy mark.l.re...@gmail.com:
Hi Adil,
What Cassandra version are you using? Are you using the default user or a
non-default user?
Hi Adil,
When using the default superuser ('cassandra') a consistency level of
QUORUM is used. When using other users ONE is used.
You are not supposed to use 'cassandra' user directly, except to create
another superuser and use that one from that point on.
Mark
On 20 November 2014 14:40,
ok thank you.
2014-11-20 16:02 GMT+01:00 Mark Reddy mark.l.re...@gmail.com:
Hi Adil,
When using the default superuser ('cassandra') a consistency level of
QUORUM is used. When using other users ONE is used.
You are not supposed to use 'cassandra' user directly, except to create
another
I'm testing triggers as part of a project and would like to add some
logging to it. I'm using the same log structure as in the trigger example
InvertedIndex but can't seem to find any logs. Where would I find the
logging? In the system logs or somewhere else?
/Joel
I found now that i logged with a too low log level set so it was filtered
from the system log. Logging with a more critical log level made the log
messages appear in the system log.
/Joel
2014-06-03 16:30 GMT+02:00 Joel Samuelsson samuelsson.j...@gmail.com:
I'm testing triggers as part
@cassandra.apache.org
Date: Tuesday, February 4, 2014 4:46 PM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: Question 1: JMX binding, Question 2: Logging
JMX stuff is in /conf/cassandra-env.sh
On Tue, Feb 4, 2014 at 2:25 PM, Kyle
To: user@cassandra.apache.org user@cassandra.apache.org
Subject: Re: Question 1: JMX binding, Question 2: Logging
JMX stuff is in /conf/cassandra-env.sh
On Tue, Feb 4, 2014 at 2:25 PM, Kyle Crumpton (kcrumpto)
kcrum...@cisco.com wrote:
Hi all,
I'm fairly new to Cassandra. I'm deploying
did not work.
Any clarity on whether this is bindable at all? Or if there are plans for it?
Also-
I have logging turned on. For some reason, though, my Cassandra is not actually
logging as intended. My log folder is actually empty after each (failed) run
(due to the port being taken by my other
Hello Kyle,
For your first question, you need to create aliases to localhost e.g.
127.0.0.2,127.0.0.3 etc. this should get you going.
About the logging issue, I think if your instance failing before it gets to
long anything, as an example you can strart one instance and make sure it
logs correctly
to..
This actually did not change the JMX binding by any means for me. I saw a
post about a jmx listen address in cassandra.yaml and this also did not
work.
Any clarity on whether this is bindable at all? Or if there are plans for
it?
Also-
I have logging turned on. For some reason, though, my
://www.datastax.com/dev/blog/tracing-in-cassandra-1-2
1) Is it possible to log which node provides the real data in a read
operation?
It's available at the DEBUG level of logging. You probably just want to
enable it on the org.apache.cassandra.db.StorageProxy class, see
log4j-server.properties for info
2
Some info on request tracing
http://www.datastax.com/dev/blog/tracing-in-cassandra-1-2
1) Is it possible to log which node provides the real data in a read
operation?
It's available at the DEBUG level of logging. You probably just want to enable
it on the org.apache.cassandra.db.StorageProxy
, is it possible to log the different delays involved in each
operation-- for example, 0.1 seconds to get digests from all nodes, 1 second
to transfer data, etc.?
Thanks,
Mohammad Hajjat
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Logging-Cassandra
Blair, thanks for the clarification! My friend actually just told me the
same..
Any idea on how to do logging??
Thanks!
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Logging-Cassandra-Reads-Writes-tp7588893p7588896.html
Sent from
No idea on the logging, I'm pretty new to Cassandra.
Regards,
Blair
On Jul 9, 2013, at 12:50 PM, hajjat haj...@purdue.edu wrote:
Blair, thanks for the clarification! My friend actually just told me the
same..
Any idea on how to do logging??
Thanks!
--
View this message
There is a new tracing feature in Cassandra 1.2 that might help you with
this.
On Tue, Jul 9, 2013 at 1:31 PM, Blair Zajac bl...@orcaware.com wrote:
No idea on the logging, I'm pretty new to Cassandra.
Regards,
Blair
On Jul 9, 2013, at 12:50 PM, hajjat haj...@purdue.edu wrote:
Blair
://www.slideshare.net/aaronmorton/apachecon-nafeb2013
Cass 1.2 also has probabilistic logging of queries.
I'm doing a cut down version at the Cassandra SF conference in June.
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 21/05
sure, i think it'd be a useful feature
On Sat, May 18, 2013 at 4:13 PM, Tomàs Núnez tomas.nu...@groupalia.comwrote:
If you're looking for logging like get keyX with CL quorum and slice Y
took n millis
That would be even better! Maybe should I file a ticket in Cassandra Jira
Yes, I read how to do that here, as well:
http://www.datastax.com/docs/1.1/configuration/logging_options
But I didn't know what classes to enable logging for the queries... Is
there any document with the list of classes with a bit explanation for each
of them? I can't find any, and I don't
If you're looking for logging like get keyX with CL quorum and slice Y
took n millis there's nothing like that from what I could find. We had to
modify c* source (CassandraServer.java) to add this query logging to the
thrift codepath.
On May 18, 2013 3:20 PM, Tomàs Núnez tomas.nu...@groupalia.com
If you're looking for logging like get keyX with CL quorum and slice Y
took n millis
That would be even better! Maybe should I file a ticket in Cassandra Jira
for this feature? Do you think it would be helpful?
BTW, just get keyX or set keyX would work for me. I'll
check
using Cassandra 0.8.4 (yes, still), as my production
servers, and also 1.0.11. Maybe this changes in 1.1? Maybe I'm doing
something wrong? Any hint?
And... could I be more precise when enabling logging? Because right now,
with *log4j.rootLogger=DEBUG,stdout,R* I'm getting a lot of information I
And... could I be more precise when enabling logging? Because right now, with
log4j.rootLogger=DEBUG,stdout,R I'm getting a lot of information I won't use
ever, and I'd like to enable just what I need to see gets and seds….
see the example at the bottom of this file about setting the log
Hi,
Is anyone using Cassandra to store firewall logs ?
If so any points to share?
Regards Hans-Peter
Hans-Peter Sloot
Oracle Technical Expert
Oracle 10g/11g Certified Master
Global Fact ATS NL
T + 31 6 303 83 499
[atos_logotype]
Dit bericht is vertrouwelijk en kan geheime informatie
to the code that
logged it…(thought you might enjoy it)...
https://github.com/deanhiller/playorm/blob/master/input/javasrc/logback.xm
l
The java appender is here(called CassandraAppender)
https://github.com/deanhiller/playorm/tree/master/input/javasrc/com/alvaza
n
/play/logging
Nice Dean
I'm not so sure we would run the server, but we'd definitely be interested
in the logback adaptor.
(We would then just access the data via Virgil (over REST), with a thin
javascript UI)
Let me/us know if you end up putting it out there. We intend centralize
logging sometime over
2 questions
1. What are people using for logging servers for their web tier logging?
2. Would anyone be interested in a new logging server(any programming
language) for web tier to log to your existing cassandra(it uses up disk space
in proportion to number of web servers and just has
Hi,
I have been running Cassandra 1.0.7 and in the log file I see the log saying
Finished hinted handoff of 0 rows to endpoint /{ipaddress}
The above issue can be reproduced by the following steps,
1. Start a cluster with 2 node, suppose node1 and node2
2. Create a keyspace with rf=2, create
It's a special case of a single sstable existing for hints:
https://issues.apache.org/jira/browse/CASSANDRA-3955
On Fri, Feb 24, 2012 at 5:43 AM, Manoj Mainali mainalima...@gmail.com wrote:
Hi,
I have been running Cassandra 1.0.7 and in the log file I see the log saying
Finished hinted
Thanks.
On Saturday, February 25, 2012, Brandon Williams dri...@gmail.com wrote:
It's a special case of a single sstable existing for hints:
https://issues.apache.org/jira/browse/CASSANDRA-3955
On Fri, Feb 24, 2012 at 5:43 AM, Manoj Mainali mainalima...@gmail.com
wrote:
Hi,
I have been
In theory you could grab the commit log, you would then have to work with
internal cassandra structures to understand what is in there.
Otherwise do it at the app level or design it into your data model.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
Hello,
What is the best way to log write operations (insert,remove, counter
add, batch operations) in Cassandra. I need to store the operations
(with values being passed) in some fashion or the other for audit
purposes (and possibly to undo some operation after inspection).
Thanks.
Hello
I try to log thrift log message (this need to us for solve communicate
problem between Cassandra daemon and php client ), so in
log4j-server.properties i write follow lines:
log4j.logger.org.apache.thrift.transport=DEBUG,THRIFT
log4j.appender.THRIFT=org.apache.log4j.RollingFileAppender
Pick a custom loglevel and redirect them with the /etc/syslog.conf ?
2012/1/24 ruslan usifov ruslan.usi...@gmail.com
Hello
I try to log thrift log message (this need to us for solve communicate
problem between Cassandra daemon and php client ), so in
log4j-server.properties i write follow
Do you want to log from inside the thrift code or from the cassandra thrift
classes ?
if it's the later try
log4j.logger.org.apache.thrift=DEBUG,THRIFT
org.apache.thrift.transport is part of thrift proper.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
2012/1/25 aaron morton aa...@thelastpickle.com
Do you want to log from inside the thrift code or from the cassandra
thrift classes ?
Exceptions happens inside thrift, so inside thrift:-)))
if it's the later try
log4j.logger.org.apache.thrift=DEBUG,THRIFT
org.apache.thrift.transport is
wrote:
Hi,
Did anyone try to configure Async Logging in Cassandra 0.8.4 ? It seems only
way to configure logging is through property file
log4j-embedded-cassandra.properties which doesnt support Async logging.
- Sachin
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder
? At INFO cassandra doesn't log much, and at DEBUG
you're going to suffer async or no. :)
On Tue, Nov 15, 2011 at 12:32 PM, Sachin Bhansali
sachin.bhans...@gmail.com wrote:
Hi,
Did anyone try to configure Async Logging in Cassandra 0.8.4 ? It seems
only
way to configure logging is through
It seems that by default only way to configure logging is through a
property file. XML files are not accepted by default, which limits the
functionality of log4j. Specifically we cannot enable Async logging. In
case we have to , we have to change the start-up script. That mean every
time
It seems that by default only way to configure logging is through a
property file. XML files are not accepted by default, which limits the
functionality of log4j. Specifically we cannot enable Async logging. In
case we have to , we have to change the start-up script. That mean every
time
a hash(val) % 512 will distribute the logical
row across a cluster for added resilience.
The above becomes
i:20110728:A9 {
tx1=va1,
tx8=va1,
}
p
On 28/07/11 15:45, Kent Narling wrote:
Hi!
I am considering to use cassandra for clustered transaction logging in a
project.
What I
How about using Snowflake to generate the transaction ids:
https://github.com/twitter/snowflake
From: Kent Narling [mailto:kent.narl...@gmail.com]
Sent: Thursday, July 28, 2011 5:46 PM
To: user@cassandra.apache.org
Subject: Using Cassandra for transaction logging, good idea?
Hi!
I am
:* Thursday, July 28, 2011 5:46 PM
*To:* [hidden email]http://user/SendEmail.jtp?type=nodenode=6639001i=1
*Subject:* Using Cassandra for transaction logging, good idea?
** **
Hi!
I am considering to use cassandra for clustered transaction logging in a
project.
What I need are in principal
]]
Sent: Thursday, July 28, 2011 5:46 PM
To: [hidden email]
Subject: Using Cassandra for transaction logging, good idea?
Hi!
I am considering to use cassandra for clustered transaction logging in a
project.
What I need are in principal 3 functions:
1 - Log transaction
Hi!
I am considering to use cassandra for clustered transaction logging in a
project.
What I need are in principal 3 functions:
1 - Log transaction with a unique (but possibly non-sequential) id
2 - Fetch transaction with a specific id
3 - Fetch X new transactions after a specific cursor
For those interested I've added a wiki page to provide information on logging
directly to Cassandra. It has a few links right now but if anyone would like
to help out in fleshing it out, it would be much appreciated :).
Wiki page: http://wiki.apache.org/cassandra/LoggingToCassandra
FAQ entry
Added CASSANDRA-1556 for the error message.
Aaron
On 29 Sep 2010, at 16:45, Jonathan Ellis wrote:
On Tue, Sep 28, 2010 at 10:28 PM, Aaron Morton aa...@thelastpickle.com
wrote:
Noticed these when working against the current 0.7.0 beta2 (#3) build...
When sending a system_add_keyspace
Noticed these when working against the current 0.7.0 beta2 (#3) build...When sending a system_add_keyspace request with an invalid keyspace the response to the client is fine...(python)InvalidRequestException: InvalidRequestException(why='Invalid keyspace name: Test Keyspace 1285729085.78')However
On Tue, Sep 28, 2010 at 10:28 PM, Aaron Morton aa...@thelastpickle.com wrote:
Noticed these when working against the current 0.7.0 beta2 (#3) build...
When sending a system_add_keyspace request with an invalid keyspace the
response to the client is fine...
(python)
InvalidRequestException:
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