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This Google Group is about MR3, Hive on MR3, and Spark on MR3.
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Farah Nadya
,
Sungwoo Park
3
Aug 8
MR3 for HIVE 3.1.2
I uploaded the binary release of Hive 3.1.3 on MR3 2.1: https://github.com/mr3project/mr3/releases/
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MR3 for HIVE 3.1.2
I uploaded the binary release of Hive 3.1.3 on MR3 2.1: https://github.com/mr3project/mr3/releases/
Aug 8
Farah Nadya
,
Sungwoo Park
3
Aug 8
hive-mr3@googlegroups.com
Hi Sungwoo, yes i want to try mr3, i use hadoop 3.3.6 yarn 3.3.6 spark 3.5.2 not using kubernetes
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hive-mr3@googlegroups.com
Hi Sungwoo, yes i want to try mr3, i use hadoop 3.3.6 yarn 3.3.6 spark 3.5.2 not using kubernetes
Aug 8
Sungwoo Park
Jul 14
Seonggon is a new Hive committer.
Seonggon in the MR3 team is a new Hive committer. Congratulations. Sungwoo
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Seonggon is a new Hive committer.
Seonggon in the MR3 team is a new Hive committer. Congratulations. Sungwoo
Jul 14
David Engel
,
Sungwoo Park
2
Jul 14
Missing File in Iceberg Table
Not sure what would be the best way to fix it. I believe it is an Iceberg problem, so perhaps the
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Missing File in Iceberg Table
Not sure what would be the best way to fix it. I believe it is an Iceberg problem, so perhaps the
Jul 14
Sungwoo Park
Jul 2
MR3 2.1 released
MR3 2.1 has been released. For the result of performance evaluation, please see our new blog article:
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MR3 2.1 released
MR3 2.1 has been released. For the result of performance evaluation, please see our new blog article:
Jul 2
David Engel
,
Sungwoo Park
2
Jun 19
hive.aux.jars.path
In the current implementation, Hive-MR3-K8s does not use hive.aux.jars.path (disallowed) and hive.mr3
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hive.aux.jars.path
In the current implementation, Hive-MR3-K8s does not use hive.aux.jars.path (disallowed) and hive.mr3
Jun 19
David Engel
, …
Sungwoo Park
5
Jun 19
Iceberg compaction with external, MySQL Metastore
It seems that all these issues are due to the Jar file missing in the classpath. I will try to fix
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Iceberg compaction with external, MySQL Metastore
It seems that all these issues are due to the Jar file missing in the classpath. I will try to fix
Jun 19
David Engel
, …
Ill
5
Jun 19
Problem with collect_set()
Does hive4.0.1 on mr3-1.12 have the same issue? On Fri, Apr 18, 2025 at 2:48 AM David Engel <david
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Problem with collect_set()
Does hive4.0.1 on mr3-1.12 have the same issue? On Fri, Apr 18, 2025 at 2:48 AM David Engel <david
Jun 19
David Engel
,
Sungwoo Park
2
Jun 11
Apache Superset and MR3 2.x
Hi David, If you use the plain shell scripts, you cannot directly use the Superset image that we
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Apache Superset and MR3 2.x
Hi David, If you use the plain shell scripts, you cannot directly use the Superset image that we
Jun 11
Sungwoo Park
2
Jun 1
Performance of Hive-MR3 2.1
Typo: In our last benchmark, Hive-MR3 2.0: 2873 seconds vs Trino 468: 4441 seconds --> In our last
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Performance of Hive-MR3 2.1
Typo: In our last benchmark, Hive-MR3 2.0: 2873 seconds vs Trino 468: 4441 seconds --> In our last
Jun 1
David Engel
,
Sungwoo Park
5
May 14
Large Iceberg inserts cause HDFS errors
The old page is probably what Google returned when I searched after your earlier email. It 404-ed
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Large Iceberg inserts cause HDFS errors
The old page is probably what Google returned when I searched after your earlier email. It 404-ed
May 14
federico jordán
,
Sungwoo Park
5
May 6
Spark issues with Hive 4
Hi, I've noticed that the Hive3 branch is no longer being actively maintained. However, we still
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Spark issues with Hive 4
Hi, I've noticed that the Hive3 branch is no longer being actively maintained. However, we still
May 6
Sungwoo Park
Apr 21
New blog article on MR3 2.0
https://mr3docs.datamonad.com/blog/2025-04-18-performance-evaluation-2.0 Performance Evaluation of
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New blog article on MR3 2.0
https://mr3docs.datamonad.com/blog/2025-04-18-performance-evaluation-2.0 Performance Evaluation of
Apr 21
David Engel
,
Sungwoo Park
2
Apr 17
How to use persistent volumes in mr3worker pods
This hack continues to work. I tested it on my own cluster: WORK_DIR_PERSISTENT_VOLUME_CLAIM=workdir-
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How to use persistent volumes in mr3worker pods
This hack continues to work. I tested it on my own cluster: WORK_DIR_PERSISTENT_VOLUME_CLAIM=workdir-
Apr 17
David Engel
,
Sungwoo Park
5
Apr 17
Workdir location
Thanks, again. I'll leave those settings alone. Without work-dir being mounted from outside, I
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Workdir location
Thanks, again. I'll leave those settings alone. Without work-dir being mounted from outside, I
Apr 17
Sungwoo Park
2
Apr 15
MR3 2.0
In preparation for the release of MR3 2.0, we redesigned the website. https://datamonad.com/ The blog
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MR3 2.0
In preparation for the release of MR3 2.0, we redesigned the website. https://datamonad.com/ The blog
Apr 15
Sungwoo Park
2
11/29/24
Hive-MR3 git repository
I updated the default branch of Hive-MR3 git repository to master4.0.0. master4.0.0 is based on Hive
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Hive-MR3 git repository
I updated the default branch of Hive-MR3 git repository to master4.0.0. master4.0.0 is based on Hive
11/29/24
Sungwoo Park
11/14/24
Hive 4.0.1 on MR3 1.12
We have released Hive 4.0.1 on MR3 1.12. (We longer update Hive 3.1.3 on MR3.) Please check out the
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Hive 4.0.1 on MR3 1.12
We have released Hive 4.0.1 on MR3 1.12. (We longer update Hive 3.1.3 on MR3.) Please check out the
11/14/24
Sungwoo Park
10/9/24
A blog article on the performance of Hive 4.0.1 on MR3 1.12
Hello, We have published a new article where we report the experimental result of running TPC-DS 10TB
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A blog article on the performance of Hive 4.0.1 on MR3 1.12
Hello, We have published a new article where we report the experimental result of running TPC-DS 10TB
10/9/24
Sungwoo Park
3
8/3/24
MR3 1.11 Release
For the performance of Hive 4 on MR3, see this blog article: https://www.datamonad.com/post/2024-08-
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MR3 1.11 Release
For the performance of Hive 4 on MR3, see this blog article: https://www.datamonad.com/post/2024-08-
8/3/24
Sungwoo Park
3
7/11/24
Hive 4.0.0 on MR3
We are quite close to releasing Hive 4 on MR3 1.11, along with the least release of Hive 3.1.3 on MR3
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Hive 4.0.0 on MR3
We are quite close to releasing Hive 4 on MR3 1.11, along with the least release of Hive 3.1.3 on MR3
7/11/24
Joaquim Ceballos Casals
,
Sungwoo Park
2
6/1/24
Critial Error License has expired in MR3 Master
Could you try MR3 1.9 or MR3 1.10 Docker image for now? For MR3 1.10, there were reports of the
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Critial Error License has expired in MR3 Master
Could you try MR3 1.9 or MR3 1.10 Docker image for now? For MR3 1.10, there were reports of the
6/1/24
Sungwoo Park
3
3/17/24
MR3 1.10 Release
Here is a quick summary of performance comparison between MR3 1.9 and MR3 1.10 on the original TPC-DS
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MR3 1.10 Release
Here is a quick summary of performance comparison between MR3 1.9 and MR3 1.10 on the original TPC-DS
3/17/24
David Engel
,
Sungwoo Park
4
2/27/24
Error in ALTER TABLE ... CONCATENATE
1. For the NPE error, we don't have test cases other that q tests included in Hive. If you know
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Error in ALTER TABLE ... CONCATENATE
1. For the NPE error, we don't have test cases other that q tests included in Hive. If you know
2/27/24
Sungwoo Park
1/10/24
Upgrade to MR3 1.9 on Kubernetes,
Hello, If you use MR3 1.7 on Kubernetes, please update mr3-run-k8s scripts and switch to MR3 1.9. The
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Upgrade to MR3 1.9 on Kubernetes,
Hello, If you use MR3 1.7 on Kubernetes, please update mr3-run-k8s scripts and switch to MR3 1.9. The
1/10/24
Sungwoo Park
,
David Engel
3
1/9/24
MR3 1.9
I updated the mr3-run-k8s repo to fix a couple of problems: 1) Java 17 options; 2) running superset
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MR3 1.9
I updated the mr3-run-k8s repo to fix a couple of problems: 1) Java 17 options; 2) running superset
1/9/24
Sungwoo Park
12/23/23
Blog article on performance tuning for BI queries,
Hello, I have published a new blog article 'Performance Tuning for Single-table Queries'. It
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Blog article on performance tuning for BI queries,
Hello, I have published a new blog article 'Performance Tuning for Single-table Queries'. It
12/23/23
Sungwoo Park
12/15/23
Hive-MR3 in HiDataPlus.
Hive-MR3 is now shipped in HiDataPlus. For the latest announcement of HiDataPlus, please see: https:/
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Hive-MR3 in HiDataPlus.
Hive-MR3 is now shipped in HiDataPlus. For the latest announcement of HiDataPlus, please see: https:/
12/15/23
Sungwoo Park
2
12/9/23
MR3 1.8 release
MR3 1.8 has been released. For changes, see the release notes: https://mr3docs.datamonad.com/docs/
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MR3 1.8 release
MR3 1.8 has been released. For changes, see the release notes: https://mr3docs.datamonad.com/docs/
12/9/23
Fiorella Piriz
, …
Sungwoo Park
5
11/22/23
Performance issue with Hive Mr3 on kubernetes (and s3)
Is there a chance that this slow S3 access is due to the use of Avro files? For example, do you see
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Performance issue with Hive Mr3 on kubernetes (and s3)
Is there a chance that this slow S3 access is due to the use of Avro files? For example, do you see
11/22/23