答复: Regarding Hadoop Erasure Coding architecture

Hi Chaitanya, I suppose you can get more details that you wanted to know from EC design doc attached in JIRA HDFS-7285(https://issues.apache.org/jira/browse/HDFS-7285). Hope this makes sense to you. Thanks Yiqun -邮件原件- 发件人: Chaitanya M V S [mailto:chaitanya.mvs2...@gmail.com] 发送时间:

[jira] [Created] (HDDS-169) Add Volume IO Stats

Bharat Viswanadham created HDDS-169: --- Summary: Add Volume IO Stats Key: HDDS-169 URL: https://issues.apache.org/jira/browse/HDDS-169 Project: Hadoop Distributed Data Store Issue Type:

[jira] [Created] (HDFS-13682) Cannot create encryption zone after KMS auth token expires

Xiao Chen created HDFS-13682: Summary: Cannot create encryption zone after KMS auth token expires Key: HDFS-13682 URL: https://issues.apache.org/jira/browse/HDFS-13682 Project: Hadoop HDFS Issue

[jira] [Created] (HDDS-168) Add ScmGroupID to Datanode Version File

Hanisha Koneru created HDDS-168: --- Summary: Add ScmGroupID to Datanode Version File Key: HDDS-168 URL: https://issues.apache.org/jira/browse/HDDS-168 Project: Hadoop Distributed Data Store

[jira] [Created] (HDFS-13681) Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows

Xiao Liang created HDFS-13681: - Summary: Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows Key: HDFS-13681 URL: https://issues.apache.org/jira/browse/HDFS-13681 Project: Hadoop

[jira] [Created] (HDDS-167) Rename KeySpaceManager to OzoneManager

Arpit Agarwal created HDDS-167: -- Summary: Rename KeySpaceManager to OzoneManager Key: HDDS-167 URL: https://issues.apache.org/jira/browse/HDDS-167 Project: Hadoop Distributed Data Store Issue

[jira] [Created] (HDFS-13680) Httpfs does not support custom authentication

Joris Nogneng created HDFS-13680: Summary: Httpfs does not support custom authentication Key: HDFS-13680 URL: https://issues.apache.org/jira/browse/HDFS-13680 Project: Hadoop HDFS Issue

Apache Hadoop qbt Report: trunk+JDK8 on Linux/x86

For more details, see https://builds.apache.org/job/hadoop-qbt-trunk-java8-linux-x86/811/ [Jun 13, 2018 1:28:05 AM] (wwei) YARN-8394. Improve data locality documentation for Capacity Scheduler. [Jun 13, 2018 7:36:02 AM] (jitendra) HADOOP-15483. Upgrade jquery to version 3.3.1. Contributed by

[jira] [Created] (HDDS-166) Create a landing page for Ozone

Elek, Marton created HDDS-166: - Summary: Create a landing page for Ozone Key: HDDS-166 URL: https://issues.apache.org/jira/browse/HDDS-166 Project: Hadoop Distributed Data Store Issue Type: Task

Regarding Hadoop Erasure Coding architecture

Hi! We a group of people trying to understand the architecture of erasure coding in Hadoop 3.0. We have been facing difficulties to understand few terms and concepts regarding the same. 1. What do the terms Block, Block Group, Stripe, Cell and Chunk mean in the context of erasure coding (these

[jira] [Created] (HDDS-165) Add unit test for HddsDatanodeService

Nanda kumar created HDDS-165: Summary: Add unit test for HddsDatanodeService Key: HDDS-165 URL: https://issues.apache.org/jira/browse/HDDS-165 Project: Hadoop Distributed Data Store Issue Type:

[jira] [Created] (HDDS-164) Add unit test for HddsDatanodeService

Nanda kumar created HDDS-164: Summary: Add unit test for HddsDatanodeService Key: HDDS-164 URL: https://issues.apache.org/jira/browse/HDDS-164 Project: Hadoop Distributed Data Store Issue Type:

[jira] [Created] (HDFS-13679) Fix Typo in javadoc for ScanInfoPerBlockPool#addAll

Shashikant Banerjee created HDFS-13679: -- Summary: Fix Typo in javadoc for ScanInfoPerBlockPool#addAll Key: HDFS-13679 URL: https://issues.apache.org/jira/browse/HDFS-13679 Project: Hadoop HDFS

[jira] [Created] (HDFS-13678) StorageType is incompatible when rolling upgrade to 2.6/2.6+ versions

Yiqun Lin created HDFS-13678: Summary: StorageType is incompatible when rolling upgrade to 2.6/2.6+ versions Key: HDFS-13678 URL: https://issues.apache.org/jira/browse/HDFS-13678 Project: Hadoop HDFS

Apache Hadoop qbt Report: trunk+JDK8 on Windows/x64

For more details, see https://builds.apache.org/job/hadoop-trunk-win/497/ [Jun 12, 2018 3:06:23 PM] (msingh) HDDS-158. DatanodeStateMachine endPoint task throws [Jun 12, 2018 3:25:18 PM] (aengineer) HDDS-111. Include tests for Rest Client in TestVolume and TestBucket. [Jun 12, 2018 3:35:37 PM]