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https://issues.apache.org/jira/browse/HBASE-20105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16391374#comment-16391374
 ] 

Hadoop QA commented on HBASE-20105:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
23s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  
0s{color} | {color:red} The patch doesn't appear to include any new or modified 
tests. Please justify why no new tests are needed for this patch. Also please 
list what manual steps were performed to verify this patch. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
21s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
 6s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
56s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
20s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  5m 
31s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
9s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
42s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
14s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  1m 
29s{color} | {color:red} root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
27s{color} | {color:red} hbase-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 27s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
58s{color} | {color:red} hbase-server: The patch generated 9 new + 109 
unchanged - 2 fixed = 118 total (was 111) {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch has 2 line(s) that end in whitespace. Use git 
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply 
{color} |
| {color:red}-1{color} | {color:red} shadedjars {color} | {color:red}  2m 
53s{color} | {color:red} patch has 19 errors when building our shaded 
downstream artifacts. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  4m 
21s{color} | {color:red} The patch causes 35 errors with Hadoop v2.6.5. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  5m 
47s{color} | {color:red} The patch causes 19 errors with Hadoop v2.7.4. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  7m 
20s{color} | {color:red} The patch causes 19 errors with Hadoop v3.0.0. {color} 
|
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
25s{color} | {color:red} hbase-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
26s{color} | {color:red} hbase-server generated 1 new + 2 unchanged - 0 fixed = 
3 total (was 2) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
26s{color} | {color:green} hbase-common in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 28s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
18s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 30m 44s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:eee3b01 |
| JIRA Issue | HBASE-20105 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12913612/HBASE-20105-v1.patch |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  shadedjars  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 65dd20751fc8 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 
13:48:03 UTC 2016 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/component/dev-support/hbase-personality.sh
 |
| git revision | master / a03d09abd7 |
| maven | version: Apache Maven 3.5.2 
(138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T07:58:13Z) |
| Default Java | 1.8.0_151 |
| findbugs | v3.1.0-RC3 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/patch-mvninstall-root.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/patch-compile-hbase-server.txt
 |
| javac | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/patch-compile-hbase-server.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/diff-checkstyle-hbase-server.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/whitespace-eol.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/patch-findbugs-hbase-server.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/diff-javadoc-javadoc-hbase-server.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/testReport/ |
| Max. process+thread count | 338 (vs. ulimit of 10000) |
| modules | C: hbase-common hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11867/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> Allow flushes to target SSD storage
> -----------------------------------
>
>                 Key: HBASE-20105
>                 URL: https://issues.apache.org/jira/browse/HBASE-20105
>             Project: HBase
>          Issue Type: New Feature
>          Components: Performance, regionserver
>    Affects Versions: hbase-2.0.0-alpha-4
>            Reporter: Jean-Marc Spaggiari
>            Priority: Major
>         Attachments: HBASE-20105-v0.patch, HBASE-20105-v1.patch
>
>
> On heavy writes usecases, flushes are compactes together pretty quickly. 
> Allowing flushes to go on SSD allows faster flush and faster first 
> compactions. Subsequent compactions going on regular storage.
>  
> I will be interesting to have an option to target SSD for flushes.



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