maybe print out value into the logfile and that should lead to some
clue where it might be the problem?
On Tue, May 7, 2019 at 4:58 PM Paul Chandler wrote:
>
> Roy, We spent along time trying to fix it, but didn’t find a solution, it was
> a test cluster, so we ended up rebuilding the cluster, r
Hi Eric, I agree with you.
On Wed, Aug 1, 2018 at 11:15 PM, Eric Evans wrote:
> On Tue, Jul 31, 2018 at 11:42 PM James Tobin wrote:
>> Hello, I'm working with an employer that is looking to hire (for their
>> Montreal office) a permanent development manager that has extensive
>> hands-on Java co
leads somewhere positive, that benefits everyone,
-Jason
On Wed, Feb 21, 2018 at 2:53 PM, Kenneth Brotman <
kenbrot...@yahoo.com.invalid> wrote:
> Hi Akash,
>
> I get the part about outside work which is why in replying to Jeff Jirsa I
> was suggesting the big companies could jus
Hi Andrew,
This question is best for the user@ list, included here.
Thanks,
-Jason
On Wed, Aug 30, 2017 at 10:00 AM, Andrew Whang
wrote:
> In evaluating 3.x, we found that hints are unable to be replayed between
> 2.x and 3.x nodes. This introduces a risk during the upgrade path fo
removing dev@ from this conversation, as the thread is more appropriately
for user@
On Mon, Jun 12, 2017 at 4:51 AM, Eduardo Alonso
wrote:
> -Virtual tokens are not recommended when using SOLR or
> cassandra-lucene-index.
>
> If you use your table schema you will not have any problem with partit
Varun,
This a message better for the user@ ML.
Thanks,
-Jason
On Tue, May 16, 2017 at 3:41 AM, varun saluja wrote:
> Hi Experts,
>
> We are facing issue on production cluster. Compaction on system.hint table
> is running from last 2 days.
>
>
> pending tasks: 1
Hi,
Cassandra uses last-writetime-win strategy.
In memory data doesn't mean it is the latest data due to custom write time,
if data is also in Sstable, Cassandra has to read it and reconcile.
Jasonstack
On Mon, 27 Mar 2017 at 7:53 PM, 赵豫峰 wrote:
> hello, I get the message that "If the memtable
1. usually before storing object, serialization is needed, so we can know
the size.
2. add "chunk id" as last clustering key.
Vikas Jaiman 于2016年10月21日周五 下午11:46写道：
> Thanks for your answer but I am just curious about:
>
> i)How do you identify the size of the object which you are going to chunk?
+1
On Wed, Oct 19, 2016 at 2:07 PM, sfesc...@gmail.com
wrote:
> Wow, thank you for doing this. This sentiment regarding stability seems to
> be widespread. Is the team reconsidering the whole tick-tock cadence? If
> not, I would add my voice to those asking that it is revisited.
>
> Steve
>
> On
this command:
SELECT keyspace_name, table_name, id FROM system_schema.tables ;
Can someone indicate why some would have suffixes and others not?
Thanks,
Jason
these unused directories?
Thanks,
Jason Kania
From: Vladimir Yudovin
To: user@cassandra.apache.org; Jason Kania
Sent: Saturday, October 8, 2016 2:05 PM
Subject: Re: Understanding cassandra data directory contents
Each table has unique id (suffix). If you drop and then recreate
be removed.
Thanks,
Jason
Hi Varun,
It looks like a scheduled job that runs "nodetool drain"..
Zhao Yang
Varun Barala 于2016年9月25日周日 下午7:45写道：
> Jeff Jirsa thanks for your reply!!
>
> We are not using any chef/puppet and It happens only at one node other
> nodes are working fine.
> And all machines are using same AMI ima
ill
persist, wipe the node and it happen again, then i change the hardware
(disk and mem). things went good.
hth
jason
On Fri, Aug 12, 2016 at 9:20 AM, Alaa Zubaidi (PDF)
wrote:
> Hi,
>
> I have a 16 Node cluster, Cassandra 2.2.1 on Windows, local installation
> (NOT on the cloud)
>
Re-create the base table and views and reinsert all data again to the
> base able.
>
> 2016-08-08 19:52 GMT-03:00 Jason J. W. Williams >:
>
>> HI Guys,
>>
>> We're running Cassandra 3.0.8, and needed to add a field to a table and
>> it's materialize
HI Guys,
We're running Cassandra 3.0.8, and needed to add a field to a table and
it's materialized views. We dropped the MVs, added the fields to the
underlying table, and recreated MVs with the new fields. However, the MV
creation is failing with:
WARN [CompactionExecutor:6933] 2016-08-08 22:4
I can vouch for TWCS...we switched from DTCS to TWCS using Jeff's plugin w/
Cassandra 3.0.5 and just upgraded to 3.0.8 today and switched over to the
built-in version of TWCS.
-J
On Mon, Jul 11, 2016 at 1:38 PM, Jeff Jirsa
wrote:
> DTCS is deprecated in favor of TWCS in new versions, yes.
>
>
>
Thanks Tyler.
-J
On Tue, Jun 28, 2016 at 3:48 PM, Tyler Hobbs wrote:
> This is expected. It's something we plan to support, but it hasn't been
> done yet: https://issues.apache.org/jira/browse/CASSANDRA-9736
>
> On Mon, Jun 27, 2016 at 4:25 PM, Jason J. W. Wil
Hey Guys,
Running Cassandra 3.0.5. Needed to add a column to a materialized view, but
ALTER MATERIALIZED VIEW doesn't seem to allow that. So we ended up dropping
the view and recreating it. Is that expected or did I miss something in the
docs?
-J
Hey Jeff,
Do most of those behaviors apply to TWCS too?
-J
On Fri, Jun 17, 2016 at 1:25 PM, Jeff Jirsa
wrote:
> First, DTCS in 2.0.15 has some weird behaviors -
> https://issues.apache.org/jira/browse/CASSANDRA-9572 .
>
>
>
> That said, some other general notes:
>
>
> Data deleted by TTL isn’t
Ben
>
> On Fri, 17 Jun 2016 at 12:02 Jason J. W. Williams <
> jasonjwwilli...@gmail.com> wrote:
>
>> Hey Ben,
>>
>> Looks like just the schema. I was surprised that running SELECTs against
>> the DC which should not have any data (because it's not
J
On Thu, Jun 16, 2016 at 7:55 PM, Ben Slater
wrote:
> Do you mean the data is getting replicated or just the schema?
>
> On Fri, 17 Jun 2016 at 11:48 Jason J. W. Williams <
> jasonjwwilli...@gmail.com> wrote:
>
>> Hi Guys,
>>
>> We have a 2 DC cluster wher
Hi Guys,
We have a 2 DC cluster where the keyspaces are replicated between the 2. Is
it possible to add a keyspace to one of the DCs that won't be replicated to
the other?
Whenever we add a new keyspace it seems to get replicated even if we don't
specify the other DC in the keyspace's NetworkTopo
letely eliminate the sstables in a directory on one machine, run 'nodetool
repair' followed by 'nodetool compact', that directory remains empty. My
understanding has been that these equivalently named directories should contain
roughly the same amount of content.
Thanks,
compact error.
Thanks,
Jason
From: Romain Hardouin
To: "user@cassandra.apache.org" ; Jason Kania
Sent: Wednesday, June 8, 2016 8:30 AM
Subject: Re: Nodetool repair inconsistencies
Hi Jason,
It's difficult for the community to help you if you don't share the error
;
nt to be caught because
replication/repair is silently failing. I noticed that there is always an "some
repair failed" amongst the repair output but that is so completely unhelpful
and has always been present.
Thanks,
Jason
Hi,
Can you check LoadBalancing Policy -> whiteList ?
jasonstack
Varun Barala 于2016年5月5日周四 下午5:40写道：
> Hi Siddharth Verma,
>
> You can define consistency level LOCAL_ONE.
>
> and you can applyh consistency level during statement creation.
>
> like this -> statement.setConsistencyLevel(Consisten
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 in
ythian | Twitter: @cjrolo | Linkedin: *linkedin.com/in/carlosjuzarterolo
> <http://linkedin.com/in/carlosjuzarterolo>*
> Mobile: +351 91 891 81 00 | Tel: +1 613 565 8696 x1649
> www.pythian.com
>
> On Fri, Apr 22, 2016 at 6:42 PM, Jason Williams > wrote:
>
>> Hi Car
t; Regards,
>
> Carlos Juzarte Rolo
> Cassandra Consultant / Datastax Certified Architect / Cassandra MVP
>
> Pythian - Love your data
>
> rolo@pythian | Twitter: @cjrolo | Linkedin: linkedin.com/in/carlosjuzarterolo
> Mobile: +351 91 891 81 00 | Tel: +1 613 565 8696 x1
My reading of the tick-rock cycle, is that we've moved from a stable train that
receives mostly bug fixes until the next major stable, to one where every odd
minor version is a bug fix-only...likely mostly for the previous even. The goal
being a relatively continuously stable code base in odd mi
connections.
> See https://issues.apache.org/jira/browse/CASSANDRA-9590
>
>> On Wed, Apr 20, 2016 at 8:51 AM, Jason J. W. Williams
>> wrote:
>> Hi Ben,
>>
>> Thanks for confirming what I saw occur. The Datastax drivers don't play very
>> nicely with Twisted Pyth
alls when using Twisted I'd appreciate insight on how you
got that working because its pretty much undocumented.
-J
On Tue, Apr 19, 2016 at 11:46 PM, Ben Bromhead wrote:
> Hi Jason
>
> If you enable encryption it will be always on. Optional encryption is
> generally a bad idea
Hey Guys,
Is there a way to make TLS encryption optional for the CQL listener? We'd
like to be able to use for remote management connections but not for same
datacenter usage (since the build/up tear down cost is too high for things
that don't use pools).
Right now it appears if we enable encryp
the different (probably competing) workloads
>> effectively.
>>
>> Mike
>>
>> On Tue, Apr 5, 2016 at 8:40 PM, jason zhao yang <
>> zhaoyangsingap...@gmail.com> wrote:
>>
>>> Hi Jack,
>>>
>>> Thanks for the reply.
>>&g
to scale with the table count. For one each
>> table/CF has some fixed memory footprint on *ALL* nodes. The consensus is
>> you shouldn't have more than "a few hundreds" of tables.
>>
>> On Mon, Apr 4, 2016 at 10:17 AM, jason zhao yang <
>> zhaoyangsin
oogle.com/forum/#!topic/nosql-databases/IblAhiLUXdk
>
> In short C* is not designed to scale with the table count. For one each
> table/CF has some fixed memory footprint on *ALL* nodes. The consensus is
> you shouldn't have more than "a few hundreds" of tables.
>
> O
Hi,
This is Jason.
Currently, I am using C* 2.1.10, I want to ask what's the optimal number of
tables I should create in one cluster?
My use case is that I will prepare a keyspace for each of my tenant, and
every tenant will create tables they needed. Assume each tenant created 50
tables
result is the epoch 0 value.
Thoughts on how to proceed?
Thanks,
Jason
From: Tyler Hobbs
To: user@cassandra.apache.org
Sent: Wednesday, March 30, 2016 11:31 AM
Subject: Re: Inconsistent query results and node state
org.apache.cassandra.service.DigestMismatchException: Mismatch for
Thanks for the response.
All nodes are using NTP.
Thanks,
Jason
From: Kai Wang
To: user@cassandra.apache.org; Jason Kania
Sent: Wednesday, March 30, 2016 10:59 AM
Subject: Re: Inconsistent query results and node state
Do you have NTP setup on all nodes?
On Tue, Mar 29, 2016 at
on 192.168.10.9 Unfortunately, attempts to
compact on 192.168.10.9 only give the following error without any stack trace
detail and are not fixed with repair.
root@cutthroat:/usr/local/bin/analyzer/bin# nodetool compact
error: null
-- StackTrace --
java.lang.ArrayIndexOutOfBoundsException
, these queries focus on raw, bulk retrieval of sensor data readings, but
do you have reading-based queries, such as range of an actual sensor reading?
-- Jack Krupansky
On Fri, Mar 11, 2016 at 7:08 PM, Jason Kania wrote:
The 5000 readings mentioned would be against a single sensor on a single sensor
en we don't know where to start and end.
Thanks,
Jason
From: Carlos Alonso
To: "user@cassandra.apache.org"
Sent: Friday, March 11, 2016 7:24 PM
Subject: Re: Strategy for dividing wide rows beyond just adding to the
partition key
Hi Jason,
If I understand correctly you h
IMIT 5000
Splitting the bulk content out of the main table is something we considered too
but we didn't find any detail on whether that would solve our timeout problem.
If there is a reference for using this approach, it would be of interest to us
to avoid any assumptions on how we would app
rectly supply the timeShard portion of our partition
key.
I appreciate your input,
Thanks,
Jason
From: Jack Krupansky
To: "user@cassandra.apache.org"
Sent: Friday, March 11, 2016 4:45 PM
Subject: Re: Strategy for dividing wide rows beyond just adding to the
partition key
list of partition keys for the
table because we cannot reduce the scope with a where clause.
If there is a recommended pattern that solves this, we haven't come across it.
I hope makes the problem clearer.
Thanks,
Jason
From: Jack Krupansky
To: user@cassandra.apache.org; Jason Kan
ld be appreciated.
Thanks,
Jason
From: Jonathan Haddad
To: user@cassandra.apache.org; Jason Kania
Sent: Thursday, March 10, 2016 11:21 AM
Subject: Re: Strategy for dividing wide rows beyond just adding to the
partition key
Have you considered making the date (or week, or whatever, some
en looking
around, but haven't found any references beyond the initial suggestion to add
some sort of shard id to the partition key to handle wide rows.
Thanks,
Jason
I raised
https://issues.apache.org/jira/browse/CASSANDRA-11273 with these details and
the workaround that I found.
From: Paulo Motta
To: "user@cassandra.apache.org" ; Jason Kania
Sent: Sunday, February 28, 2016 10:01 PM
Subject: Re: How to complete bootstrap with except
Hi,
I just reran the command and collected following. Any suggestions would be
appreciated.
Thanks,
Jason
from 192.168.10.8
ERROR [STREAM-IN-/192.168.10.10] 2016-02-27 20:37:53,857 StreamSession.java:635
- [Stream #c9868f90-ddbb-11e5-80c0-89f591237aca] Remote peer 192.168.10.10
failed stream
indicates that the replication factor is 1:
root@bull:~# nodetool repair
[2016-02-27 18:04:55,083] Nothing to repair for keyspace 'sensordb'
Thanks,
Jason
.
Thanks,
Jason
Thanks for the tool reference. That will help. The second part of my question
was whether there is a way to actually perform data repair aside from copying
data from a replica.
Thanks,
Jason
From: Carlos Alonso
To: user@cassandra.apache.org; Jason Kania
Sent: Wednesday, February 24
any tools to actually repair the data rather than copy it from a
replica elsewhere because with the JVM error, the database JVMs are not staying
up.
Suggestions would be appreciated.
Thanks,
Jason
keyspace
replication.
hth,
jason
On Fri, Nov 13, 2015 at 2:35 PM, Shuo Chen wrote:
> Hi,
>
> We have a small cassandra cluster with 4 nodes for production. All the
> nodes have similar hardware configuration and similar data load. The C*
> version is 1.0.7 (prretty old)
>
>
> On Fri, Nov 6, 2015 at 12:49 PM, Bryan Cheng
>> wrote:
>>
>>> Is your compaction progressing as expected? If not, this may cause an
>>> excessive number of tiny db files. Had a node refuse to start recently
>>> because of this, had to temporarily
I'm getting too many open files errors and I'm wondering what the
cause may be.
lsof -n | grep java show 1.4M files
~90k are inodes
~70k are pipes
~500k are cassandra services in /usr
~700K are the data files.
What might be causing so many files to be open?
jas
>
> I certainly don't vouch for the advisability of attempting a task you've
> described as a "real pain" ... but if OP wants/needs to, it's their
> funeral? :D
>
Agreed. I just wanted to elaborate what a "real pain" meant so OP would
know I wasn't just blowing him off.
-J
>
> Google words like :
>
> "
> import openssl private key into keytool
> "
>
> Find results like :
>
>
> http://stackoverflow.com/questions/906402/importing-an-existing-x509-certificate-and-private-key-in-java-keystore-to-use-i/8224863#8224863
>
>
I wasted 4-5 hours of my life recently importing a
Because when you use keytool it stores the generated private key in the
keystore and tags it waiting for the certificate. Then when you import the
issued certificate it is paired in the same record with the key. It's a real
pain to get OpenSSL encoded private keys into a keytool keystore. Don't
10.129.1.112 |726
Executing seq scan across 3 sstables for [min(-9223372036854775808),
min(-9223372036854775808)] [SharedPool-Worker-2] | 2015-10-22 16:06:56.045000 |
10.129.1.112 | 1423
Read 0
live and 0 tombstone cells [SharedPool-Worker-2] | 2015-10-22 16:06:56.045000 |
10.129.1.112 | 1779
Read 1
live and 0 tombstone cells [SharedPool-Worker-2] | 2015-10-22 16:06:56.045000 |
10.129.1.112 | 1850
Scanned 2 rows and matched 2 [SharedPool-Worker-2] | 2015-10-22 16:06:56.045000
| 10.129.1.112 | 1881
Submitted 1 concurrent range
requests covering 257 ranges [SharedPool-Worker-1] | 2015-10-22 16:06:56.046000
| 10.129.1.112 | 5390
Request complete | 2015-10-22 16:06:56.045807 |
10.129.1.112 | 6807
Can anyone suggest why my data isn't being returned or where to continue
digging?
Thank you!
Jason
Awesome. Thanks Nate!
On Tue, Oct 13, 2015 at 10:32 AM, Nate McCall
wrote:
> > I've configured internode SSL and set it to be used between datacenters
> only. Is there a way in the logs to verify SSL is operating between nodes
> in different DCs or do I need to break out tcpdump?
> >
>
> Even on
Hi Guys,
I've configured internode SSL and set it to be used between datacenters only.
Is there a way in the logs to verify SSL is operating between nodes in
different DCs or do I need to break out tcpdump?
Thank you in advance.
-J
Sent via iPhone
server
and if all nodes need to be Snapshotted, and have the snapshots and tokens
backed up.
Can anyone share their DR setups and maybe an overview of how you would recover
if you lost your entire cluster?
Thanks!
Jason Turner
HostedOps Engineer | Hosted Operations | 503.416.5080 (d
it.
> I have to load data from SQL Server into Cassandra and I am completely new
> to Cassandra and all of the posts I seem to be able to find are demos
> about loading from MySQL into Cassandra.
> Any, any help would be extremely appreciated!
> Thank you very much!
> Raluca
>
>
>
>
>
>
--
Jason Kushmaul | 517.899.7852
Engineering Manager
I should probably add.. /etc/hosts had the hostname set to 127.0.1.1.
On Thu, Sep 3, 2015 at 11:00 PM, Jason Lewis wrote:
> I figured this one out. As it turns out, the nodes that I couldn't
> connect to, had the hostname set to 127.0.1.1. The listen IP is *not*
> that IP.
>
I figured this one out. As it turns out, the nodes that I couldn't
connect to, had the hostname set to 127.0.1.1. The listen IP is *not*
that IP.
Thanks for the logging tip, it helped track it down.
On Thu, Sep 3, 2015 at 10:43 PM, Jason Lewis wrote:
> After enabling that option, I&
After enabling that option, I'm seeing errors like this on the node I
can't connect to.
Sep 04, 2015 2:35:48 AM sun.rmi.server.UnicastServerRef logCallException
FINE: RMI TCP Connection(4)-127.0.0.1: [127.0.0.1] exception:
javax.management.InstanceNotFoundException:
org.apache.cassandra.metrics:t
un.management.jmxremote.password.file=/etc/cassandra/jmxremote.password"
fi
On Tue, Aug 25, 2015 at 4:35 PM, Michael Shuler wrote:
> On 08/25/2015 02:19 PM, Jason Lewis wrote:
>>
>> I'm trying to run nodetool from one node, connecting to another. I
>> can successful
I'm trying to run nodetool from one node, connecting to another. I
can successfully connect to the majority of nodes in my ring, but two
nodes throw the following error.
nodetool: Failed to connect to ':7199' NoSuchObjectException: 'no
such object in table'.
Any idea why this is happening? Misc
What consistency level were the writes?
-Original Message-
From: "Robert Wille"
Sent: 8/20/2015 18:25
To: "user@cassandra.apache.org"
Subject: Written data is lost and no exception thrown back to the client
I wrote a data migration application which I was testing, and I pushed it to
ubject:* Validation of Data after data migration from RDBMS to Cassandra
>
>
>
> Hi,
>
>
>
> We have to migrate the data from Oracle/mysql to Cassandra.
>
> I wanted to understand, if we have any tool/utilitiy which can help in
> validation the data after the data migration to Cassandra.
>
>
>
> Thanks
> Surbhi
>
--
Jason Kushmaul | 517.899.7852
Engineering Manager
just a guess, gc?
On Mon, Jul 20, 2015 at 3:15 PM, Marcin Pietraszek
wrote:
> Hello!
>
> I've noticed a strange CPU utilisation patterns on machines in our
> cluster. After C* daemon restart it behaves in a normal way, after a
> few weeks since a restart CPU usage starts to raise. Currently on o
3. How do we rebuild System keyspace?
wipe this node and start it all over.
hth
jason
On Tue, Jul 7, 2015 at 12:16 AM, Shashi Yachavaram
wrote:
> When we reboot the problematic node, we see the following errors in
> system.log.
>
> 1. Does this mean hints column family is corrupt
you should check the network connectivity for this node and also its system
average load. is that typo or literary what it is, cassandra 1.2.15.*1* and
java 6 update *85* ?
On Thu, Jul 2, 2015 at 12:59 AM, Shashi Yachavaram
wrote:
> We have a 28 node cluster, out of which only one node is expe
nodetool cfstats?
On Wed, Jul 1, 2015 at 8:08 PM, Neha Trivedi wrote:
> Hey..
> nodetool compactionstats
> pending tasks: 0
>
> no pending tasks.
>
> Dont have opscenter. how do I monitor sstables?
>
>
> On Wed, Jul 1, 2015 at 4:28 PM, Alain RODRIGUEZ
> wrote:
>
>> You also might want to check
same here too, on branch 1.1 and have not seen any high cpu usage.
On Wed, Jul 1, 2015 at 2:52 PM, John Wong wrote:
> Which version are you running and what's your kernel version? We are still
> running on 1.2 branch but we have not seen any high cpu usage yet...
>
> On Tue, Jun 30, 2015 at 11:1
te e di distruggere il messaggio originale e
> ogni file allegato senza farne copia alcuna o riprodurne in alcun modo il
> contenuto. * This e-mail and its attachments are intended
> for the addressee(s) only and are confidential and/or may contain legally
> privileg
on the node 192.168.2.100, did you run repair after its status is UN?
On Wed, Jun 24, 2015 at 2:46 AM, Jean Tremblay <
jean.tremb...@zen-innovations.com> wrote:
> Dear Alain,
>
> Thank you for your reply.
>
> Ok, yes I did not drain. The cluster was loaded with tons of records,
> and no new re
what's your questions?
On Mon, Jun 22, 2015 at 12:05 AM, 曹志富 wrote:
> the logger like this :
>
>
> INFO [CompactionExecutor:501] 2015-06-21 21:42:36,306
> CompactionTask.java:140 - Compacting
> [SSTableReader(path='/home/ant/apache-cassandra-2.1.6/bin/../data/data/system/hints/system-hints-ka-3
okay, iirc memtable has been removed off heap, google and got this
http://www.datastax.com/dev/blog/off-heap-memtables-in-Cassandra-2-1
apparently, there are still some reference on heap.
On Thu, Jun 18, 2015 at 1:11 PM, Marcus Eriksson wrote:
> It is probably this: https://issues.apache.org/ji
maybe check the system.log to see if there is any exception and/or error?
check as well if they are having consistent schema for the keyspace?
hth
jason
On Tue, Jun 16, 2015 at 7:17 AM, Michael Theroux
wrote:
> Hello,
>
> We (finally) have just upgraded from Cassandra 1.1 to Cassand
for a start, maybe you can see the setting use by raspberry pi project, for
instance
http://ac31004.blogspot.com/2012/05/apache-cassandra-on-raspberry-pi.html
you can look at these two files, to tune down the settings for test
environment.
cassandra-env.sh
cassandra.yaml
hth
jason
On Tue, Jun 9
the error in the log output looks similar to this
http://serverfault.com/questions/614810/opscenter-4-1-4-authentication-failing
, in the opscenter 5.1.2 , do you configure the username/password same
with the agent and cassandra node too?
jason
On Wed, Jun 3, 2015 at 11:13 AM, 贺伟平 wrote
/CompactionTask.java#L156-L157
jason
On Tue, Jun 2, 2015 at 2:31 AM, Aiman Parvaiz wrote:
> Hi everyone,
> I am running C* 2.0.9 without vnodes and RF=2. Recently while repairing,
> rebalancing the cluster I encountered one instance of this(just one on one
> node):
>
> ERROR
can you tell what jvm is that?
jason
On Mon, Jun 1, 2015 at 5:46 PM, Michał Łowicki wrote:
> Hi,
>
> Normally I get logs like:
>
> 2015-06-01T09:19:50.610+: 4736.314: [GC 6505591K->4895804K(8178944K),
> 0.0494560 secs]
>
> which is fine and understandable but o
://github.com/apache/cassandra/blob/cassandra-2.1.5/src/java/org/apache/cassandra/io/sstable/SSTableReader.java#L921
hth
jason
On Fri, May 29, 2015 at 9:39 AM, 曹志富 wrote:
> I have a 25 noedes C* cluster with C* 2.1.3. These days a node occur split
> brain many times。
>
> che
hmm..i supposed you start with rf = 1 and then when 3n arrived, just add
into the cluster and later decomission this one node?
http://docs.datastax.com/en/cassandra/2.0/cassandra/operations/ops_remove_node_t.html
hth
jason
On Tue, May 26, 2015 at 10:02 PM, Matthew Johnson
wrote:
> Hi Ja
icial EOL date was.
Thanks!
Jason
.
with this single node, you can easily simulate like c* upgrade. for
instance, c* right now is at 2.1.5, when 2.2 went stable, you can test
using your multiple instances on this single node to simulate your
production environment safely.
hth
jason
On Tue, May 26, 2015 at 9:24 PM, Matthew Johnson
ition ReplayPosition(segmentId=1432265013436,
position=423408)
INFO [MigrationStage:1] 2015-05-26 12:12:26,598 ColumnFamilyStore.java:882
- Enqueuing flush of dogtypes: 0 (0%) on-heap, 0 (0%) off-heap
INFO [CompactionExecutor:191] 2015-05-26 12:12:26,668
CompactionTask.java:270 - Compacted 4 sstab
, due to a really intensive delete workloads, the SSTable is promoted
to t..
Is cassandra design for *delete* workloads? doubt so. Perhaps looking at
some other alternative like ttl?
jason
On Mon, May 25, 2015 at 10:12 AM, Manoj Khangaonkar
wrote:
> Hi,
>
> For a delete
yeah, you can confirm in the log such as the one below.
WARN [main] 2015-05-22 11:23:25,584 CassandraDaemon.java:81 - JMX is not
enabled to receive remote connections. Please see cassandra-env.sh for more
info.
we are running c* with ipv6, cqlsh works superb but not on local link.
$ nodetool -h f
Running java7u72 with c* 1.1 with no issues.. yet (hope not) :)
Jason
On Sat, May 16, 2015 at 2:39 AM, wrote:
> I have run plenty of 1.2.x Cassandra versions on the Oracle JVM 1.7. I
> have used both 1.7.0_40 and 1.7.0_72 with no issues. Also have 3.2.7 DSE
> running on 1.7.0_72 in P
try different jvm version or find out why is that happening?
hth
jason
On Mon, May 4, 2015 at 10:10 AM, 曹志富 wrote:
> Hi guys:
>
> I havle C* 2.1.3 cluster,25 nodes ,running in JDK_1.7.0_71, CentOS
> 2.6.32-220.el6.x86_64,4 Core,32GB RAM.
>
> Today one of the nodes,has so
begin to
understand where and how to determine the root cause.
jason
On Tue, Mar 31, 2015 at 8:22 PM, Robert Wille wrote:
> I moved my site over to Cassandra a few months ago, and everything has been
> just peachy until a few hours ago (yes, it would be in the middle of the
> night) when
is needed?
Why not scrub? when you run command nodetool upgradesstables , it is
actually scrubing the data? Can you explain ?
Jason
On Fri, Mar 27, 2015 at 7:21 AM, Robert Coli wrote:
> On Wed, Mar 25, 2015 at 7:16 PM, Jonathan Haddad wrote:
>>
>> There's no downside to run
Sean, thanks and I will keep that in mind for this upgrade. Jason
On Thu, Mar 26, 2015 at 1:23 AM, wrote:
> Yes, run upgradesstables on all nodes - unless you already force major
> compactions on all tables. I run them on a few nodes at a time to minimize
> impact to performance. Th
hmm... okay.
one more question
https://github.com/apache/cassandra/blob/cassandra-1.1.12/NEWS.txt I
upgraded directly to 1.1.12 , do I need to run nodetool
upgradesstables as stipulated in version 1.1.3 ?
jason
On Wed, Mar 25, 2015 at 1:04 AM, Jonathan Haddad wrote:
> Streaming is rep
?
Thanks.
Jason
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