satisfiedLinkError:
> 'java.lang.String
> org.apache.hadoop.io.compress.lz4.Lz4Compressor.getLibraryName()'
> at
> org.apache.hadoop.io.compress.lz4.Lz4Compressor.getLibraryName(Native
> Method)
> at
> org.apache.hadoop.io.compress.Lz4Codec.getLibraryName(Lz4Cod
Hi Anup,
Did you explore: -skipSharedEditsCheck, Check this ticket once [1], if
your use case is similar, little bit description can be found here
[2], search for skipSharedEditsCheck, the jira does mention another
solution as well, in case you don't like this or if it doesn't work
-Ayush
[1]
Hi,
We can't help with the HBase thing, for that you need to chase the
HBase user ML.
For the `hadoop checknative -a` showing false, maybe the native
libraries that are pre-built & published aren't compatible with the OS
you are using, In that case you need to build them on the "same" OS,
the
Hi,
> Or is it just not developed to this point?
It isn't developed & I don't think there is any effort going on in that
direction
> I learned that continuous layout can ensure the locality of file blocks
How? Erasure Coding will have BlockGroups not just one Block, whether you
write in a
Hi Jim,
Directly create a PR against the trunk branch in Hadoop repo, if it is accepted
then add the link to the PR and resubmit your request for Jira account, it will
get approved
-Ayush
> On 17 Apr 2024, at 10:02 AM, Jim Chen wrote:
>
>
> Hi all, I want to optimize a script in
).
>
> Gruß & Thx
> Richard
>
> [1] https://github.com/apache/storm/pull/3637
> [2]
> https://github.com/apache/storm/blob/e44f72767370d10a682446f8f36b75242040f675/external/storm-hdfs/pom.xml#L120
>
> On 2024/04/11 21:29:13 Ayush Saxena wrote:
> > Hi Richard,
>
Hi Richard,
I am not able to decode the issue properly here, It would have been
better if you shared the PR or the failure trace as well.
QQ: Why are you having hadoop-common as an explicit dependency? Those
hadoop-common stuff should be there in hadoop-client-api
I quickly checked once on the
RBF does support observer reads, it was added as part of
https://issues.apache.org/jira/browse/HDFS-16767
you need to go through it, there are different configs and stuff you might
need to setup to get RBF & Observer NN work together.
-Ayush
On Fri, 26 Jan 2024 at 13:44, 尉雁磊 wrote:
> Can't
Hi,
Your question is not very clear. So, I am answering whatever I understand.
1. You don't want Router to manage Quotas?
Ans: Then you can use this config: dfs.federation.router.quota.enable
and set it to false
2. You have default NS as Router but you want to set Quota individually to NS?
Ans.
Hi Akash,
You can read about balancer here:
https://apache.github.io/hadoop/hadoop-project-dist/hadoop-hdfs/HdfsUserGuide.html#Balancer
HADOOP-1652(https://issues.apache.org/jira/browse/HADOOP-1652) has
some details around it as well, it has some docs attached to it, you
can read them...
For the
+ user@hadoop
This sounds pretty strange, do you have any background job in your
cluster running, like for compaction kind of stuff, which plays with
the files? Any traces in the Namenode Logs, what happens to the blocks
associated with those files, If they get deleted before a FBR, that
ain't a
> Or do I just have it there mistakenly?
Yes, It should be in core-site.xml
It is there in the HA doc
```
fs.defaultFS - the default path prefix used by the Hadoop FS client
when none is given
Optionally, you may now configure the default path for Hadoop clients
to use the new HA-enabled
Hi Nikos,
I think you are talking about the documentation in the overview
section of the docker image: https://hub.docker.com/r/apache/hadoop
I just wrote that 2-3 Months back particularly for dev purposes not
for any prod use case, you should change those values accordingly. The
docker-compose
Well sending this unsubscribe won’t do anything, send a mail to:
user-unsubscr...@hadoop.apache.org
And for any other individual, if you want to unsubscribe, the above mail id
does that. Not this one!!!
It is mentioned over here as well:
https://hadoop.apache.org/mailing_lists.html
-Ayush
On
What is the bug here? Connection reset by peer, mostly n/w issue or the client aborted the connection.What were you executing? Is this intermittent? What is the state of the task that you ran? Is it happening for all operations or few?Mostly this ain’t a bug but some issue with your
Forwarded a recieved.
-Ayush
-- Forwarded message -
From: Gavin McDonald
Date: Fri, 24 Mar 2023 at 15:27
Subject: TAC supporting Berlin Buzzwords
To:
PMCs,
Please forward to your dev and user lists.
Hi All,
The ASF Travel Assistance Committee is supporting taking up to six
Not related to hadoop, reach out to hbase ML-AyushOn 02-Mar-2023, at 4:17 AM, Douglas A. Whitfield wrote:I can see a call and response between the regionserver and the central node, but I don't know why there is a shutdown happening. Do I need to raise the log
Hey,
The best I know you can check in the HDFS Audit logs. Just copying a sample
entry,
2023-02-15 14:47:30,679 [IPC Server handler 1 on default port 59514] INFO
FSNamesystem.audit (FSNamesystem.java:logAuditMessage(8852)) -
allowed=true ugi=ayushsaxena (auth:SIMPLE) ip=localhost/127.0.0.1
We had to revert it since it broke a lot of downstream stuff, the upgrade patch had issues.At present we know it requires Jersey upgrade as well for sure, which is in blocked state as well, and not sure what else comes up post that.So, short answer: it isn’t there in the upcoming release, nor
The file was in progress? In that case this is possible, once the data gets persisted on the disk of the datanode then the data loss ain’t possible.If someone did a hflush and not hsync while writing and the power loss happens immediately after that, so in that case also I feel there is a
Hi,
Is it happening regularly? kind of with regular FBR's, in that case you
need to configure your Datanode's block report interval high enough and in
a way that all of them don't bombard the namenode at same time and there is
enough gap between FBR's from the datanodes.
If it is happening with
Send a mail to user-subscr...@hadoop.apache.org-AyushOn 01-Dec-2022, at 11:31 AM, fanyuping [范育萍] wrote:Hi Community, I’d like to subscribe to this mailing list.Best RegardsYuping FanB‹CB•È [œÝXœØÜšX™KK[XZ[ˆ
Hi Deepti,
The OkHttp one I think got sorted as part of HDFS-16453, It is there in
Hadoop-3.3.4(Released),
Second, netty is also upgraded as part of HADOOP-18079 and is also there in
Hadoop-3.3.4, I tried to grep on the dependency tree of 3.3.4 and didn't
find 4.1.42. If you still see it let me
dmin.
> However, the command only requests a fixed namenode, and the debug logs of
> the other namenode cannot be printed
>
>
>
>
> At 2022-11-10 18:44:19, "Ayush Saxena" wrote:
>
> If some sort of debugging is going on which doubts topological
> miscon
whether the deployment operation is correct。
>
>
>
>
> At 2022-11-10 17:34:37, "Ayush Saxena" wrote:
>
> In a stable cluster, usually all the datanodes report to all the namenodes
> and mostly the information would be more or less same in all namenodes.
> This
In a stable cluster, usually all the datanodes report to all the namenodes
and mostly the information would be more or less same in all namenodes.
This isn't data which goes stale you might land up in some mess, and
moreover these aren't user commands but Admin commands, it is pre assumed
that
Using DistCp is the only option AFAIK. Distcp does support webhdfs, then try
playing with the number of mappers and so to tune it for better performance
-Ayush
> On 09-Oct-2022, at 8:56 AM, Abhishek wrote:
>
>
> Hi,
> We want to backup large no of hadoop small files (~1mn) with webhdfs API
Apache community, your opinion
matters: we want to hear your voice.
If you have any questions about the survey or otherwise, please reach out
to us!
Kindly,
Ayush Saxena
On Behalf of:
Katia Rojas
V.P. of Diversity and Inclusion
The Apache Software Foundation
rary that I can try out? Our
> cluster is only like 50 nodes, which shouldn't be a problem.
>
> Thanks
> Leon
>
>> On Wed, Jun 15, 2022 at 8:20 PM Ayush Saxena wrote:
>> The first one: NoSuchMethodException isn't something to worry about, it is
>> just irrelevant n
InvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
> ~[hadoop-common-3.1.0.jar!/:?]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
> ~[hadoop-common-3.1.0.jar!/:?]
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157
You didn't paste the entire trace or details about what operation failed,
not very familiar with ALB, seems AWS specific, those guys should be having
some support forum or so, can try your luck there
Just going by the exception message. if you have configured everything
properly and the server
You can find one for 3.3.1, but not for 3.3.3, ARM release is optional for us
and we don’t release it always. So, it isn’t there for couple of versions. You
can download the source tar and build the release yourself on a ARM machine,
that is most what I can think.
-Ayush
>
> On 08-Jun-2022,
It won’t work this way, shoot a mail to:
user-unsubscr...@hadoop.apache.org
-Ayush
>
> On 05-Jun-2022, at 1:48 PM, Devika Rankhambe
> wrote:
>
>
> kindly unsubscribe me from this group
>
> --
> Regards,
> Prof. Devika P. Rankhambe
> Assistant Professor,
> Department of Information
Hi Michael,
Can you change the hadoop version from 3.3.2 to 3.3.3 and then try, Most
probably this is due to missing shaded classes in the 3.3.2 version from
the hadoop-client jar.
-Ayush
On Sat, 21 May 2022 at 20:57, Michael Gao wrote:
> Hi all
>
> I try to build some application on windows
Follow the official doc:
https://hadoop.apache.org/
Or wikipedia too has some stuff:
https://en.m.wikipedia.org/wiki/Apache_Hadoop
BTW this doesn’t seems to be a very relevant ask for this mailing list, search
on the internet you will find enough stuff there….
-Ayush
> On 18-May-2022, at
apart from the fact that the Aggregate WordCount example
> uses the Aggregate framework of Hadoop? - as mentioned here in
> https://stackoverflow.com/questions/24105117/how-to-execute-aggreagatewordcount-example-in-hadoop-which-uses-hadoop-aggregate#comment37203837_24105117
>
>
>
Hi,
I tried it too and it gave me a similar output. Looks like some bug with
the code. The code seems to be there since stone age though...
I tried a fix, it seems there was "." period missing while setting the conf
and when retrieving we were trying to get it with the period.
Have put the code
io.LongWritable is
> not class org.apache.hadoop.io.BytesWritable
>
> So, it looks like the previous issue was solved, but something else might
> be happening? Is it necessary to manually specify a key class?
>
> On Sun, 1 May 2022 at 19:47, Ayush Saxena wrote:
>
>> H
Hi Pratyush,
Can you try the class along with the package:
org.apache.hadoop.mapreduce.lib.input.TextInputFormat
It should work. All subclasses of InputFormat.java should work.
-Ayush
>
> On 02-May-2022, at 4:53 AM, Pratyush Das wrote:
>
>
> Hi,
>
> I tried executing the Join.java
> Regards,
> Smita
>
> From: Ayush Saxena
> Sent: 22 April 2022 12:53 PM
> To: Smita Deshpande
> Cc: user@hadoop.apache.org
> Subject: Re: EOL query for version - 2.8.4
>
> Hey,
> The latest stable version is 3.3.2
>
> https://hadoop.apache.org/do
Hey,
The latest stable version is 3.3.2
https://hadoop.apache.org/docs/stable/
3.3.3 should be out as well may be sometime in early or mid May
-Ayush
>
> On 22-Apr-2022, at 12:48 PM, Smita Deshpande
> wrote:
>
> Hello,
>
> Currently I have a cluster setup having version – 2.8.4, I use
Forwarded as asked in the mail.
-Ayush
Begin forwarded message:
> From: Gavin McDonald
> Date: 4 April 2022 at 1:56:40 PM IST
> To: travel-assista...@apache.org
> Subject: Applications for Travel Assistance to ApacheCon NA 2022 now open
> Reply-To: tac-ap...@apache.org
>
> Hello, Apache
Sending unsubscribe here won’t help.
Send a mail to:
user-unsubscr...@hadoop.apache.org
Or click on the unsubscribe link in this page for the relevant mailing list:
https://hadoop.apache.org/mailing_lists.html
-Ayush
> On 27-Mar-2022, at 3:13 AM, Kasi Subrahmanyam wrote:
>
>
>
>> On
confirm what is the mitigation for this CVE?
>
>
> Regards,
> Deepti Sharma
> PMP® & ITIL
>
>
> From: Ayush Saxena
> Sent: Monday, January 10, 2022 3:17 AM
> To: Deepti Sharma S
> Cc: user@hadoop.apache.org
> Subject: Re: Apache Hadoop Fix for C
It is written on the website:
https://hadoop.apache.org/
Hadoop, as of today depends on log4j 1.x, which is NOT susceptible to the
attack (CVE-2021-44228).
>
> On 09-Jan-2022, at 8:19 PM, Deepti Sharma S
> wrote:
>
>
> Hello Team,
>
> As we have Log4J vulnerability CVE-2021-44228,
Hey,
Looks like issues with the Datanodes. The block placement policy isn’t able to
get 3 datanodes with available DISK space. Give a check to your Cluster
datanodes state, types of storages, space in DISK and related stuff.
Try enabling debug logs, you might see logs like Datanode X is not
Not sure how hbase or pheonix handle stuff, but do you see the directory/file
deleted in HDFS, can check if the file you are deleting is getting deleted, i.e
It exists before and once you execute your stuff it isn’t there,
Are HDFS Snapshots enabled? Not on the directory but any of its parent
+1
-Ayush
> On 27-Aug-2020, at 6:24 PM, Steve Loughran
> wrote:
>
>
>
> +1
>
> are there any Hadoop branch-2 releases planned, ever? If so I'll need to
> backport my s3a directory compatibility patch to whatever is still live.
>
>
>> On Thu, 27 Aug 2020 at 06:55, Wei-Chiu Chuang
Please mail to :
user-subscr...@hadoop.apache.org
Ref:
https://hadoop.apache.org/mailing_lists.html
-Ayush
> On 26-Aug-2020, at 5:43 PM, Niketh Nikky wrote:
>
> please subscribe me to the user e-mail list
>
> Thanks
> Niketh
>
>> On Aug 26, 2020, at 5:35 AM, brahmam wrote:
>>
>>
cuting the the commands.
>
>
>
> *-ls: java.net.UnknownHostException: hdfs*
>
> *-mkdir: java.net.UnknownHostException: hdfs*
>
>
>
>
>
> Regards,
>
> Kamaraj
>
> InfoSight - SRE
>
>
>
> *From: *Ayush Saxena
> *Sent: *Sunday, August 23, 2020 7:17 PM
&
Hi Kamaraj,
If you are trying to setup an HA cluster, you need couple of more configs
as well, You can follow this document, this should answer all your doubts :
https://hadoop.apache.org/docs/r3.3.0/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html#Deployment
-Ayush
On Sun, 23
https://hadoop.apache.org/docs/r2.6.0/hadoop-project-dist/hadoop-hdfs/HDFSCommands.html#dfsadmin
> but
> did not see any option for getting active namenode.
>
> I am looking for a command-line approach.
>
> On Sat, May 2, 2020 at 12:43 PM Ayush Saxena wrote:
>
>> Hi Debraj,
Hi Debraj,
There is a command in haadmin -getAllServiceState, You can use that.
Can read this for details :
https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HDFSCommands.html#haadmin
In the namenode UI also you can see the state of the namenode.
-Ayush
On Sat, 2 May 2020
Hi Kevin,
It is possible to have multiple Namenodes in a HA setup. One Active Namenode
and multiple Standby Namenodes.
The Active Namenodes serves all the requests.
In case of failure of Active Namenode, one of the standby takes up its place
and acts as Active to serve the requests there
Try giving the name as org.apache.hadoop.hdfs.TestWriteRead
With package name
> On 31-May-2019, at 11:16 AM, Daegyu Han wrote:
>
> Hi all,
>
> I want to run a unit test by using hadoop-hdfs-2.9.2-tests.jar in
> hadoop-2.9.2/share/hadoop/hdfs.
>
> 1.
> It didn't work to run the followed
Hi Ashok
To subscribe to user mail list, you can a drop a mail to :
user-subscr...@hadoop.apache.org
For further information you can check :
https://hadoop.apache.org/mailing_lists.html
-Ayush
Sent from my iPhone
> On 08-Apr-2019, at 8:16 AM, Ashok Ghosh wrote:
>
> Please subscribe me to
Hi Kiet
You can try increasing the timeout using the configuration
dfs.client.socket-timeout
The default is 6 milliseconds, can increase accordingly.
Thanks
-Ayush
> On 19-Feb-2019, at 6:06 AM, Ly, Kiet wrote:
>
> Whenever my Hadoop cluster is under heavy load, I can't copy a file from
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