Increase in produce times after kafka 3.7 upgrade

2024-06-10 Thread Mark Van Ree
Hello, recently we upgraded kafka from 2.8.0 to 3.7.0 and noticed a 5x value increase from the kafka.request.produce.time.avg datadog metric. There was also a considerable increase in the kafka.request.metadata.time.avg value. It is worth noting the 99percentile metrics are comparable to before the

MirrorMaker + Failover

2024-02-28 Thread Mark Anderson
could be having multiple MirrorMaker instances - one to mirror from A and one to mirror from B - that could then be controlled by another process depending on the availability of A or B. Has anyone else had to handle these types of scenarios? Thanks, Mark

Kafka and Java 17

2021-11-21 Thread Mark Anderson
What is the status of support for Java 17 in Kafka for both brokers and clients? The docs for Kafka 3.0.0 state that Java 8 and Java 11 are supported. Thanks, Mark

Kafka Zookeeper SSL - include cert and key.

2021-08-22 Thread john mark
y server certificate chain I thought combining/chaining the intermediate cert will fix it but nothing. Best regards, John Mark Causing

Secure connection using cert and keyfile

2021-08-16 Thread john mark
(does not support ssl.clientAuth). Any ideas on how can I connect my Kafka server using -cert and -key option? Best regards, John Mark Causing

zookeeper ssl alert “alert bad certificate”

2021-08-14 Thread john mark
erties: ssl.clientAuth=want and I no longer see any SSL errors. Any tips/suggestions on how to fix this SSL error without upgrading (I don't want to update at the moment to avoid other conflicts like Kafka Cruise Control and others). Thanks in advance! Best regards, John Mark Causing

Zookeeper upgrade only and not Kafka, is that possible?

2021-08-13 Thread john mark
k you in advance! Best regards, John Mark Causing

Zookeeper SSL error

2021-07-29 Thread john mark
08) at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:447) ... 17 more Best regards, John Mark Causing

Re: Use a single consumer or create consumer per topic

2020-02-26 Thread Mark Zang
have a bunch of consumer groups, one per topic, > so they can rebalance independently. > > On Wed, Feb 26, 2020, 1:05 AM Mark Zang wrote: > > > Hi, > > > > I have a 20 brokers kafka cluster and there are about 50 topics to > consume. > > > > Between creatin

Use a single consumer or create consumer per topic

2020-02-25 Thread Mark Zang
0.10.2 Thanks! Mark

Reset topology

2019-12-14 Thread Mark Tinsley
lease feel free to ask more. I’m looking for confirmation on the above or corrections, both welcome. Thanks, Mark

Re: kafka-reassign-partitions / JSON parsing broke between 2.1 and 2.2. Was : broken cluster / com.fasterxml.jackson.databind.ext.Java7Support.getDeserializerForJavaNioFilePath

2019-12-12 Thread Mark Anderson
Jackson was updated to 2.10 in the latest Kafka release. The method mentioned no longer exists in 2.10. Do you have multiple versions of Jackson on the ckasspath? On Thu, 12 Dec 2019, 11:09 Charles Bueche, wrote: > Hello again, > > spending hours debugging this and having no clue... > > * Kaf

Re: NoClassDefFoundError: org/rocksdb/RocksDBException with 2.3.1-rc2

2019-10-24 Thread Mark Anderson
le to import 2.3.1-rc2 in spring boot? > > Thanks! > > On Thu, Oct 24, 2019 at 4:21 PM Mark Anderson > wrote: > > > > Are you using Spring Boot? > > > > I know that the recent Spring Boot 2.2.0 release specifically updates > their > > Kafka depe

Re: NoClassDefFoundError: org/rocksdb/RocksDBException with 2.3.1-rc2

2019-10-24 Thread Mark Anderson
Are you using Spring Boot? I know that the recent Spring Boot 2.2.0 release specifically updates their Kafka dependency to 2.3.0. Previous version used Kafka 2.1.x though I've used 2.2.x with it. Maybe running mvn dependency:tree would help see if there are multiple Kafka versions that could conf

Re: Kafka gc remark time very long

2019-08-21 Thread Mark Anderson
The first thing I would do is update to the latest Java 8 release. Just in case you are hitting any G1GC bugs in such an old version. Mark On Thu, 22 Aug 2019, 07:17 Xiaobing Bu, wrote: > it not a network issues, since i had capture the network packets. > when the GC remark and unloading

Re: Question: Kafka as a message queue for long running tasks

2019-06-13 Thread Mark Anderson
you could do something similar? Mark On Thu, 13 Jun 2019, 17:49 Murphy, Gerard, wrote: > Hi, > > I am wondering if there is something I am missing about my set up to > facilitate long running jobs. > > For my purposes it is ok to have `At most once` message delivery, this

Re: Kafka 2.2.1 with Zookeeper 3.5.5

2019-06-05 Thread Mark Anderson
Kafka has its own version of the zookeeper client libraries that are still 3.4.13. I'd be interested to know if it is compatible with 3.5.x now that has a stable release. Mark On Wed, 5 Jun 2019, 21:27 Sebastian Schmitz, < sebastian.schm...@propellerhead.co.nz> wrote: > Hi, >

Re: Strange KafkaConsumer IllegalStateException

2019-04-02 Thread Mark Anderson
Further investigation has uncovered a defect when resolving a hostname fails - https://issues.apache.org/jira/browse/KAFKA-8182 Looks like it has been present since support for resolving all DNS IPs was added. On Mon, 1 Apr 2019 at 15:55, Mark Anderson wrote: > Hi list, > > I'

Question on Kafka Streams

2019-04-01 Thread Mark Fursht
Hello, I would like to know, how many opened windows Kafka streams can hold? Sincerely, Mark [cid:image001.png@01D3B960.F400ABC0] This message has been scanned for malware by Websense. www.websense.com

Strange KafkaConsumer IllegalStateException

2019-04-01 Thread Mark Anderson
ception being thrown at line 926. Can anyone shed any light? Thanks, Mark

KafkaConsumer.poll() and exceptions

2019-03-27 Thread Mark Anderson
need to replace it with a new consumer instance? Thanks Mark

Invalid metadata error on produce request + metadata update

2019-03-11 Thread Mark Anderson
ccur? On a fixed schedule? The next time Producer.send is called for the same topic and partition? Or does something else trigger it? Thanks, Mark

Re-using KafkaConsumer after exception from poll

2019-02-07 Thread Mark Anderson
e any cases where it would be OK to re-use the KafkaConsumer after poll() throws an exception? Thanks, Mark

Re: poll() question

2019-02-04 Thread Mark Anderson
I'm sure I initially made this assumption when trying to read all records from a compacted topic on application startup and it was incorrect. Due to latency, threading GC pauses etc it would return 0 when there were still records on the topic. Mark On Mon, 4 Feb 2019, 18:02 Pere Urbón Baye

poll() question

2019-02-04 Thread Mark Horton
e was a network problem that caused it to timeout before it could return that record? Mark

Zookeeper on Java 11

2019-01-30 Thread Mark Anderson
t for? Thanks, Mark

Kafka Broker with -XX:+PerfDisableSharedMem

2019-01-24 Thread Mark Anderson
nyone have any experience of running Kafka with this flag and seeing a reduction in pauses? Thanks, Mark

Kafka Broker with -XX:-UseBiasedLocking

2019-01-14 Thread Mark Anderson
mpact performance or stability? Thanks, Mark

Re: Zookeeper timeout message in logs has value < configured timeout

2019-01-14 Thread Mark Anderson
he 'readTimeout' is defined as: > > readTimeout = sessionTimeout * 2 / 3; > > Thus, the 'actually' sessionTimeout is 1333ms while > config:zookeeper.session.timeout=2000ms > > > >-Original Message- > >From: Mark Anderson [mailto:manderso...@gm

Zookeeper timeout message in logs has value < configured timeout

2019-01-09 Thread Mark Anderson
tCnxn) However, my zookeeper session timeout is configured as 2000ms. Why does the log file show a session timeout for a value less than what is configured? Thanks, Mark

message ordering within a transaction

2019-01-06 Thread Mark Horton
is it possible this will cause messages to be re-ordered within the transaction? Mark

Re: Optimising Time For Leader Election

2018-12-10 Thread Mark Anderson
twork threads (To try and work through the queued requests faster)? Thanks, Mark On Thu, 6 Dec 2018 at 23:43 Mayuresh Gharat wrote: > Hi Mark, > > The leader election of a new topic partition happens once the controller > detects that the Leader has crashed. > This happens asynchrono

Optimising Time For Leader Election

2018-12-06 Thread Mark Anderson
at the key parameters are to tune to make this possible. Does anyone have any pointers? Or are there any guides online? Thanks, Mark

Re: ConcurrentModificationException in Kafka Producer 2.1.0

2018-12-06 Thread Mark Anderson
che/kafka/pull/6005/files > > > Guozhang > > On Wed, Dec 5, 2018 at 6:54 AM Mark Anderson > wrote: > > > Hi, > > > > I'm periodically seeing ConcurrentModificationExceptions in the producer > > when records are expired e.g. > > > > E

ConcurrentModificationException in Kafka Producer 2.1.0

2018-12-05 Thread Mark Anderson
27;t seen this issue. Please let me know if there is any more information I can supply. Thanks, Mark

Kafka Producer Buffer and Broker Connection Failure

2018-11-23 Thread Mark Anderson
nt to the new leader. Could you please confirm my understanding is correct? Thanks, Mark

Support Roadmap

2018-11-07 Thread Mark Anderson
d and 2.1.x is imminent. Thanks, Mark

Re: Kafka Deplopyment Using Kubernetes (on Cloud) - settings for log.dirs

2018-10-22 Thread Mark Anderson
Have you reviewed https://www.confluent.io/blog/getting-started-apache-kafka-kubernetes/ as a starting point? On Mon, 22 Oct 2018, 18:07 M. Manna, wrote: > Thanks a lot for your prompt answer. This is what I was expecting. > > So, if we had three pods where volumes are mapped as the following >

Re: INVALID_FETCH_SESSION_EPOCH after upgrade to 1.1.0

2018-08-01 Thread Mark Anderson
Also in this case will it fall back to a full request? Hence no data is lost but it might increase latency? Thanks Mark On Thu, 26 Jul 2018, 12:28 Mark Anderson, wrote: > Ted, > > Below are examples of the DEBUG entries from FetchSession > > [2018-07-26 11:14:43,461] DEBUG Crea

Re: INVALID_FETCH_SESSION_EPOCH after upgrade to 1.1.0

2018-07-26 Thread Mark Anderson
there are always out by one significant? Thanks, Mark On Wed, 13 Jun 2018 at 17:46 Ted Yu wrote: > You would need this (plus any appender you want the log to go to): > > log4j.logger.kafka.server=DEBUG > > FYI > > On Wed, Jun 13, 2018 at 9:15 AM, Ted Yu wrote: > >>

Re: INVALID_FETCH_SESSION_EPOCH after upgrade to 1.1.0

2018-06-13 Thread Mark Anderson
n.id}: expected " + > > s"epoch ${session.epoch}, but got epoch $ > {reqMetadata.epoch()}.") > > new SessionErrorContext(Errors.INVALID_FETCH_SESSION_EPOCH, > reqMetadata) > > Can you pastebin the log line preceding what you pas

INVALID_FETCH_SESSION_EPOCH after upgrade to 1.1.0

2018-06-12 Thread Mark Anderson
ith respect to receiving records but I would like to understand 1. Why is the message being logged? 2. Do I need to do anything? 3. Can anything be done to stop it being logged? Thanks, Mark

Re: Quick replication question - loss of committed messages during preferred replica election

2017-01-23 Thread Mark Smith
of our 'data loss', which isn't actually loss but a bad interaction of failover and catching a stale HWM leading to errors being thrown by the broker when it maybe doesn't need to. Thoughts? -- Mark Smith m...@qq.is On Wed, Jan 18, 2017, at 02:11 PM, Jun Rao wrote: >

Quick replication question - loss of committed messages during preferred replica election

2017-01-18 Thread Mark Smith
this is being referred to sort-of in Scenario 1, however, that scenario is mentioning broker failure -- and my concern is that data loss is possible even in the normal scenario with no broker failures. Any thoughts? -- Mark Smith m...@qq.is

Re: Investigating apparent data loss during preferred replica election

2016-11-22 Thread Mark Smith
kes sense and means my understanding was wrong and this wasn't an issue. Thanks for helping clear that up. This means there is still an unresolved issue, unfortunately. I can replicate the conditions that led to it and see if I can reproduce the problem. If so, I'll update this thread

Re: Investigating apparent data loss during preferred replica election

2016-11-21 Thread Mark Smith
this case, I still don't think any discussion about multiple- failovers is germane to the problem we saw. Each of our partitions only had a single failover, and yet 4 of them still truncated committed data. -- Mark Smith m...@qq.is On Mon, Nov 21, 2016, at 05:12 PM, Jun Rao wrote:

Re: Investigating apparent data loss during preferred replica election

2016-11-21 Thread Mark Smith
rg/jira/browse/KAFKA-1211 * I've read through this but I'm not entirely sure if it addresses the above. I don't think it does, though. I don't see a step in the ticket about become-leader making a call to the old leader to get the latest generation snapshot? -- Mark Smith m...@

Re: Investigating apparent data loss during preferred replica election

2016-11-18 Thread Mark Smith
Correct, we've disabled unclean leader election. There were also no log messages from an unclean election. I believe that Kafka thinks it performed a clean election and still lost data. -- Mark Smith m...@qq.is On Thu, Nov 17, 2016, at 06:23 PM, Tauzell, Dave wrote: > Do

Investigating apparent data loss during preferred replica election

2016-11-17 Thread Mark Smith
old, can anybody explain what happened? I'm happy to provide more logs or whatever. Thanks! -- Mark Smith m...@qq.is

Re: [VOTE] 0.10.0.0 RC3

2016-05-06 Thread Mark Grover
Thanks, Gwen. I was testing RC2 with Spark Streaming and found an issue that has a minor fix. I think this issue exists with RC3 as well: https://issues.apache.org/jira/browse/KAFKA-3669 On Thu, May 5, 2016 at 1:46 PM, Gwen Shapira wrote: > Hello Kafka users, developers and client-developers, >

Re: Event sourcing and topic partitions

2016-03-29 Thread Mark van Leeuwen
ast enough to allow you to quickly skip through all the stuff you don't need... On Mon, Mar 28, 2016 at 10:53 AM, Mark van Leeuwen wrote: Hi all, When using Kafka for event sourcing in a CQRS style app, what approach do you recommend for mapping DDD aggregates to topic partitions? Assign

Re: Event sourcing and topic partitions

2016-03-29 Thread Mark van Leeuwen
oughput. And feel free to replace ³publisherID² with ³TargetConsumerID² or ³OrderedEventBusID². On 3/29/16, 7:38 AM, "Mark van Leeuwen" wrote: Thanks for sharing your experience. I'm surprised no one else has responded. Maybe there are few people using Kafka for event sourc

Re: Event sourcing and topic partitions

2016-03-29 Thread Mark van Leeuwen
ition granularity issue; another is the lack of a way to guarantee exclusive write access, i.e. ensure that only a single process can commit an event for an aggregate at any one time. On Mon, 28 Mar 2016 at 16:54 Mark van Leeuwen wrote: Hi all, When using Kafka for event sourcing in a CQRS style app,

Event sourcing and topic partitions

2016-03-28 Thread Mark van Leeuwen
n the cluster to low tens of thousand". One partition per aggregate will far exceed that number. Thanks, Mark

Re: Would Kafka streams be a good choice for a collaborative web app?

2016-03-21 Thread Mark van Leeuwen
om/about/contact.html> On Mon, Mar 21, 2016 at 6:25 PM, Ben Stopford wrote: It sounds like a fairly typical pub-sub use case where you’d likely be choosing Kafka because of its scalable data retention and built in fault tolerance. As such it’s a reasonable choice. On 21 Mar 2016, at 17

Re: Would Kafka streams be a good choice for a collaborative web app?

2016-03-21 Thread Mark van Leeuwen
de by all current clients, preferably without polling. That's why keeping track of offsets with each client seemed the way to go. Not sure how stream processing engines help with that - but happy to be advised otherwise. Cheers. On 22/03/16 02:35, Sandesh Hegde wrote: Hello Mark, Have

Re: Would Kafka streams be a good choice for a collaborative web app?

2016-03-21 Thread Mark van Leeuwen
ebase. Had a quick look. Synchronization with multiple client looks good, but there other requirements we have such as preserving full change history which still make me think Kafka could be the best fit. On 22/03/16 01:55, Gerard Klijs wrote: Hi Mark, I don't think it would be a goo

Would Kafka streams be a good choice for a collaborative web app?

2016-03-20 Thread Mark van Leeuwen
one user would be published to multiple consumer clients over a websocket, each having their own offset. Would this be viable? Are there any considerations I should be aware of? Thanks, Mark

Re: Exactly-once publication behaviour

2016-02-22 Thread Mark Harrison
Kafka rather than by the numerous proprietary systems that do this. Mark

Re: kafka-connect-jdbc: ids, timestamps, and transactions

2015-12-18 Thread Mark Drago
ere. I'll also close the github issue with a link to this thread. Thanks again, Mark. On Wed, Dec 16, 2015 at 9:51 PM Ewen Cheslack-Postava wrote: > Mark, > > There are definitely limitations to using JDBC for change data capture. > Using a database-specific implementa

kafka-connect-jdbc: ids, timestamps, and transactions

2015-12-16 Thread Mark Drago
ql would handle this nicely as it would get the changes once they're committed. Thanks for any insight, Mark. Original github issue: https://github.com/confluentinc/kafka-connect-jdbc/issues/27

Re: mapping events to topics

2015-10-08 Thread Mark Drago
call about the best approach to take. Thanks, Mark. I usually approach this questions by looking at possible consumers. You > usually want each consumer to read from relatively few topics, use most > of the messages it receives and have fairly cohesive logic for using these > messages

mapping events to topics

2015-10-06 Thread Mark Drago
ences from the members of this group. What is the general best practice for reusing topics or creating new ones? What has worked well in the past? What should we be considering while making this decision? Thanks in advance! Mark.

RE: Kafka Broker process: Connection refused

2015-10-04 Thread Mark Whalley
bs/kafka_2.10-0.8.1.2.2.0.0-2041-scaladoc.jar I will also raise this under http://hortonworks.com/community/forums/forum/kafka/ Regards Mark -Original Message- From: Harsha [mailto:ka...@harsha.io] Sent: 04 October 2015 16:42 To: users@kafka.apache.org Subject: Re: Kafka Broker proces

Kafka Broker process: Connection refused

2015-10-04 Thread Mark Whalley
. I have done the usual Google searching, and followed many threads over the past few days, but have drawn a blank. Any thoughts where I should start to look? Regards Mark --- Mark Whalley Principal Consultant Actian | Services Accelerating Big Data 2.0 O +44 01

Re: The origin of the name

2015-05-20 Thread Mark Reddy
relationship." http://www.quora.com/What-is-the-relation-between-Kafka-the-writer-and-Apache-Kafka-the-distributed-messaging-system Regards, Mark On 20 May 2015 at 15:32, András Serény wrote: > Hi All, > > I wonder, how the messaging system Kafka has got its name? I believe it > w

Which version works for kafka 0.8.2 as consumer?

2015-04-01 Thread Mark Zang
I found the 0.8.2.0 and 0.8.2.1 has a KafkaConsumer. But this class seems not completed and not functional. Lots of method returns null or throws NSM. Which version of consumer for kafka 0.8.2 broker? Thanks! -- Best regards! Mike Zang

Re: Kafka High CPU, 0.8.2.1 or openjdk?

2015-03-13 Thread Mark Reddy
/kafka/0.8.2.1/RELEASE_NOTES.html Mark On 13 March 2015 at 15:10, Marc Labbe wrote: > Hi, > > our cluster is deployed on AWS, we have brokers on r3.large instances, a > decent amount of topics+partitions (+600 partitions). We're not making that > many requests/sec, roughly 80

Kafka Questions

2015-03-09 Thread Mark Flores
between each cluster? *How do we prevent a message published at one cluster being replicated to another cluster and into an infinite loop (assuming we use a MirrorMaker whitelist like Global.* at each cluster)? Regards, Mark Flores Project Manager, Enterprise Technology Direct206-576

Kafka Mailing List for General Questions

2015-03-09 Thread Mark Flores
Hi, I would like to subscribe to the Kafka mailing list for general questions. Please let me know what I need to do in order to submit questions to the Kafka general mailing list. Thanks. Regards, Mark Flores Project Manager, Enterprise Technology Direct206-576-2675 Email mark.flo

Re: Unlimited Log Retention

2015-02-27 Thread Mark Roberts
Wouldn't it be a better choice to store the logs offline somewhere? HDFS and S3 are both good choices... -Mark > On Feb 27, 2015, at 16:12, Warren Kiser wrote: > > Does anyone know how to achieve unlimited log retention either globally or > on a per topic basis? I tried e

Re: Does kafka use sbt (or) gradle

2015-02-12 Thread Mark Reddy
Hi Saravana, Since 0.8.1 Kafka uses Gradle, previous to that SBT was used. Here is the JIRA which the drove the change: https://issues.apache.org/jira/browse/KAFKA-1171 The offical docs for the latest release (0.8.2) can be found here: http://kafka.apache.org/documentation.html Regards, Mark

Re: Any Java 7 compatibility issues for 0.8.1.1?

2015-02-02 Thread Mark Reddy
> > I don't think there are any issues. > +1, I've been running Kafka with Java 7 for quite some time now and haven't experienced any issues. Regards, Mark On 2 February 2015 at 19:09, Otis Gospodnetic wrote: > I don't think there are any issues. We use 0.8.1

Re: Is it possible to enforce an "unique constraint" through Kafka?

2015-01-06 Thread Mark Roberts
g [queue] rethought as a distributed commit log. -Mark On Tue, Jan 6, 2015 at 3:14 PM, Joseph Pachod wrote: > Hi > > Having read a lot about kafka and its use at linkedin, I'm still unsure > whether Kafka can be used, with some mindset change for sure, as a general > purpose data s

Re: Programmatic Kafka version detection/extraction?

2014-11-12 Thread Mark Roberts
ery JMX for the server version of every server in the cluster? Is there a reason not to include this in the API itself? -Mark On Wed, Nov 12, 2014 at 9:50 AM, Joel Koshy wrote: > +1 on the JMX + gradle properties. Is there any (seamless) way of > including the exact git hash? That would b

Re: Programmatic Kafka version detection/extraction?

2014-11-12 Thread Mark Roberts
Just to be clear: this is going to be exposed via some Api the clients can call at startup? > On Nov 12, 2014, at 08:59, Guozhang Wang wrote: > > Sounds great, +1 on this. > >> On Tue, Nov 11, 2014 at 1:36 PM, Gwen Shapira wrote: >> >> So it looks like we can use Gradle to add properties to

Re: Kafka lost data

2014-10-27 Thread Mark Roberts
I think it will depend on how your producer application logs things, but yes I have historically seen exceptions in the producer logs when they exceed the max message size. -Mark On Mon, Oct 27, 2014 at 10:19 AM, Chen Wang wrote: > Hello folks, > I recently noticed our message amount in

Re: Using Kafka for ETL from DW to Hadoop

2014-10-23 Thread Mark Roberts
a: Yes, absolutely. -Mark On Thu, Oct 23, 2014 at 3:08 AM, Po Cheung wrote: > Hello, > > We are planning to set up a data pipeline and send periodic, incremental > updates from Teradata to Hadoop via Kafka. For a large DW table with > hundreds of GB of data, is it okay (in terms o

Re: Improving the Kafka client ecosystem

2014-08-19 Thread Mark Roberts
Did this mailing list ever get created? Was there consensus that it did or didn't need created? -Mark > On Jul 18, 2014, at 14:34, Jay Kreps wrote: > > A question was asked in another thread about what was an effective way > to contribute to the Kafka project for people

Re: Improving the Kafka client ecosystem

2014-07-19 Thread Mark Roberts
te, I have lots of questions about a formalized "certified client" process. I'm not against the idea (in fact quite the opposite), but I'm concerned that non-Java clients will be constrained purely to the currently existing Java API in the name of client uniformity and standard

Re: delete topic ?

2014-06-18 Thread Mark Roberts
e new metadata API. -Mark > On Jun 18, 2014, at 4:06, "Shlomi Hazan" wrote: > > Hi, > > Doing some evaluation testing, and accidently create a queue with wrong > replication factor. > > Trying to delete as in: > > kafka_2.10-0.8.1.1/bin/kafka-topics.sh

Re: data archiving

2014-06-16 Thread Mark Godfrey
There is Bifrost, which archives Kafka data to S3: https://github.com/uswitch/bifrost Obviously that's a fairly specific archive solution, but it might work for you. Mark. On Mon, Jun 16, 2014 at 11:02 AM, Anatoly Deyneka wrote: > Hi all, > > I'm looking for the way of ar

Re: Use Kafka To Send Files

2014-06-15 Thread Mark Roberts
You would ship the contents of the file across as a message. In general this would mean that your maximum file size must be smaller than your maximum message size. It would generally be a better choice to put a pointer to the file in some shared location on the queue. -Mark > On Jun 15, 2

Re: .net and Kafka

2014-01-28 Thread Mark Farnan
some work in this area: I anticipate releasing the client as OS when complete, and would be interested in co-operating if anyone is interested. Regards Mark Farnan. CTO - Petrolink International. On Sep 14, 2013, at 2:18 AM, Richard Park wrote: > We are currently trying out A

Re: Consumer group questions

2013-10-09 Thread Mark
igs here - http://kafka.apache.org/07/configuration.html > > Thanks, > Neha > > > On Wed, Oct 9, 2013 at 10:07 AM, Mark wrote: > >> This is in regards to consumer group consumption in 0.7.2. >> >> Say we have 3 machines with 3 partitions in each topi

Consumer group questions

2013-10-09 Thread Mark
This is in regards to consumer group consumption in 0.7.2. Say we have 3 machines with 3 partitions in each topic totaling 9 partitions. Now if I create a consumer group with 9 threads on the same machine then all partitions will be read from. Now what happens if I start another 9 threads on a

Re: Too many open files

2013-09-27 Thread Mark
are using A10's On Sep 26, 2013, at 6:41 PM, Nicolas Berthet wrote: > Hi Mark, > > I'm using centos 6.2. My file limit is something like 500k, the value is > arbitrary. > > One of the thing I changed so far are the TCP keepalive parameters, it had &g

Re: Too many open files

2013-09-26 Thread Mark
eptember 26, 2013 12:39 PM > To: users@kafka.apache.org > Subject: Re: Too many open files > > If a client is gone, the broker should automatically close those broken > sockets. Are you using a hardware load balancer? > > Thanks, > > Jun > > > On Wed, Sep

Re: Too many open files

2013-09-26 Thread Mark
>> Sent: Thursday, September 26, 2013 12:39 PM >> To: users@kafka.apache.org >> Subject: Re: Too many open files >> >> If a client is gone, the broker should automatically close those broken >> sockets. Are you using a hardware load balancer? >>

Re: Too many open files

2013-09-25 Thread Mark
FYI if I kill all producers I don't see the number of open files drop. I still see all the ESTABLISHED connections. Is there a broker setting to automatically kill any inactive TCP connections? On Sep 25, 2013, at 4:30 PM, Mark wrote: > Any other ideas? > > On Sep 25, 2013, a

Re: Too many open files

2013-09-25 Thread Mark
x27;t close the old > ones. > > Thanks, > > Jun > > > On Wed, Sep 25, 2013 at 6:08 AM, Mark wrote: > >> No. We are using the kafka-rb ruby gem producer. >> https://github.com/acrosa/kafka-rb >> >> Now that you asked that question I need to ask. Is

Re: Too many open files

2013-09-25 Thread Mark
er client? > > Thanks, > > Jun > > >> On Tue, Sep 24, 2013 at 5:33 PM, Mark wrote: >> >> Our 0.7.2 Kafka cluster keeps crashing with: >> >> 2013-09-24 17:21:47,513 - [kafka-acceptor:Acceptor@153] - Error in >> acceptor >>java.i

Too many open files

2013-09-24 Thread Mark
Our 0.7.2 Kafka cluster keeps crashing with: 2013-09-24 17:21:47,513 - [kafka-acceptor:Acceptor@153] - Error in acceptor java.io.IOException: Too many open The obvious fix is to bump up the number of open files but I'm wondering if there is a leak on the Kafka side and/or our applicati

Kafka -> HDFS

2013-08-30 Thread Mark
What is the quickest and easiest way to write message from Kafka into HDFS? I've come across Camus but before we go the whole route of writing Avro messages we want to test plain old vanilla messages. Thanks

Re: JMX

2013-08-29 Thread Mark
I needed to add the hostname to get it working.. -Djava.rmi.server.hostname=${HOSTNAME} On Aug 29, 2013, at 4:47 PM, Mark wrote: > Strange.. looks like that works. Not sure if because I am using that locally > whereas jconsole and visualvm are remote > > On Aug 29, 2013

Re: JMX

2013-08-29 Thread Mark
org/jmxterm/tutorial > > > On Thu, Aug 29, 2013 at 7:02 PM, Mark wrote: > >> I should note this is Kafka 0.7 >> >> On Aug 29, 2013, at 3:59 PM, Mark wrote: >> >>> I tried changing the ports and still no luck. Does it work with JConsole >> an

Re: JMX

2013-08-29 Thread Mark
I should note this is Kafka 0.7 On Aug 29, 2013, at 3:59 PM, Mark wrote: > I tried changing the ports and still no luck. Does it work with JConsole > and/or do I need anything in my class path? > > > On Aug 29, 2013, at 3:44 PM, Surendranauth Hiraman > wrote: > &

Re: JMX

2013-08-29 Thread Mark
line to see the jmx port > usually. > > -Suren > > > > On Thu, Aug 29, 2013 at 6:41 PM, Mark wrote: > >> Can you view Kafka metrics via JConsole? I've tried connecting to port >> with no such luck? > > > > > -- >

JMX

2013-08-29 Thread Mark
Can you view Kafka metrics via JConsole? I've tried connecting to port with no such luck?

What are my options? (Ruby/Rails environment)

2013-08-29 Thread Mark
We are thinking about using Kafka to collect events from our Rails application and I was hoping to get some input from the Kafka community. Currently the only gems available are: https://github.com/acrosa/kafka-rb https://github.com/bpot/poseidon (Can't use since we are only running 1.8.7) Now

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