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https://issues.apache.org/jira/browse/HDFS-15829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17281721#comment-17281721
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Hadoop QA commented on HDFS-15829:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Logfile || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
36s{color} | {color:blue}{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} || ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green} 0m
0s{color} | {color:green}{color} | {color:green} No case conflicting files
found. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green}{color} | {color:green} The patch does not contain any
@author tags. {color} |
| {color:green}+1{color} | {color:green} {color} | {color:green} 0m 0s{color}
| {color:green}test4tests{color} | {color:green} The patch appears to include 1
new or modified test files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} || ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 19m
26s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
18s{color} | {color:green}{color} | {color:green} trunk passed with JDK
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
18s{color} | {color:green}{color} | {color:green} trunk passed with JDK Private
Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
16s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
21s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
15m 36s{color} | {color:green}{color} | {color:green} branch has no errors when
building and testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
52s{color} | {color:green}{color} | {color:green} trunk passed with JDK
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
26s{color} | {color:green}{color} | {color:green} trunk passed with JDK Private
Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 3m
1s{color} | {color:blue}{color} | {color:blue} Used deprecated FindBugs config;
considering switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
59s{color} | {color:green}{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} || ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
15s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
12s{color} | {color:green}{color} | {color:green} the patch passed with JDK
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
12s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
9s{color} | {color:green}{color} | {color:green} the patch passed with JDK
Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
9s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
1m 8s{color} |
{color:orange}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt{color}
| {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch generated 7 new +
681 unchanged - 0 fixed = 688 total (was 681) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
16s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green}{color} | {color:green} The patch has no whitespace
issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 32s{color} | {color:green}{color} | {color:green} patch has no errors when
building and testing our client artifacts. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m
48s{color} |
{color:red}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04.txt{color}
| {color:red} hadoop-hdfs in the patch failed with JDK
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 1m
24s{color} |
{color:red}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/diff-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01.txt{color}
| {color:red}
hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01
with JDK Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 generated 3 new
+ 1 unchanged - 0 fixed = 4 total (was 1) {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 3m
11s{color} |
{color:red}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/new-findbugs-hadoop-hdfs-project_hadoop-hdfs.html{color}
| {color:red} hadoop-hdfs-project/hadoop-hdfs generated 1 new + 0 unchanged -
0 fixed = 1 total (was 0) {color} |
|| || || || {color:brown} Other Tests {color} || ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}195m 9s{color}
|
{color:red}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt{color}
| {color:red} hadoop-hdfs in the patch passed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m
40s{color} |
{color:red}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/patch-asflicense-problems.txt{color}
| {color:red} The patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}266m 14s{color} |
{color:black}{color} | {color:black}{color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs |
| | Should org.apache.hadoop.hdfs.server.namenode.TtlService$FilterThread be
a _static_ inner class? At TtlService.java:inner class? At
TtlService.java:[lines 40-61] |
| Failed junit tests | hadoop.tools.TestHdfsConfigFields |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/artifact/out/Dockerfile
|
| JIRA Issue | HDFS-15829 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/13020242/HDFS-15829.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle |
| uname | Linux f072b632ca61 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 2df2dfb9ed3 |
| Default Java | Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 |
| Test Results |
https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/testReport/ |
| Max. process+thread count | 3391 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/469/console |
| versions | git=2.25.1 maven=3.6.3 findbugs=4.0.6 |
| Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
This message was automatically generated.
> Use xattr to support HDFS TTL on Observer namenode
> --------------------------------------------------
>
> Key: HDFS-15829
> URL: https://issues.apache.org/jira/browse/HDFS-15829
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: dfsclient, namenode
> Reporter: Yang Yun
> Assignee: Yang Yun
> Priority: Minor
> Attachments: HDFS-15829.patch
>
>
> h3. Overview
>
> HDFS TTL is implemented using the xattr mechanism provided by HDFS. When a
> user sets a TTL to a file or directory, HDFS creates an xattr named "ttl" for
> the file or directory, and stores the value set by the user in this xattr. A
> service called TtlService runs on HDFS standby or Observer(Recommended ). It
> scans the in-memony inode map regularly, reads the value of xattr "ttl" from
> each INode, and calculates whether the ttl has expired. If so, it will get
> the full file path from Inode and add it to expired file list. After scan it
> will create a DFSClient and delete the expired file list in bach. other
> option is to trigger a Yarn job to delete them in parallel。
> h3. Protocol
> Add two xattr
> "user.ttl": value of TTL by minutes, identify the time that file or folder
> will be expired.
> "user. ttlproperty": value is TTL types, including,
> * SINCELASTWRITE = 0x1 # caculate the TTL from last writing.
> * KEEPEMPTYDIR = 0x2; # if keep the empty dir
> * KEEPEMPTYSUBDIR = 0x4; # if keep subdir empty.
>
> *Nested TTL*
> TTL supports setting for each directory and file on a path, so that after
> setting, the setting of the lower-level subdirectory or file will take
> effect. If a directory or file does not have a time to live, it will inherit
> the settings of the nearest ancestor directory. The following is an
> illustrative example. Suppose there is such a directory tree:
>
> {code:java}
> /A/B/E
> /A/C
> /A/D {code}
>
> That is, B, C and D under directory A. And there is file E under directory
> B. Suppose the user sets the TTL of A to 2 days, the TTL of B to 3 days, the
> TTL of E to 1 day, and the TTL of C and D is not set. Then the file E will be
> cleared after 1 day. After 2 days, C and D will be cleared. The settings
> inherited from directory A are used here. Please note that at this time,
> directory A will not be cleared because it is not empty. After 3 days, B will
> be cleared because its own settings expire. After B is cleared, because A’s
> settings have already expired and A has become an empty directory, it will
> also be cleared.
> h3. Usage
> Fro the first version, provide API to set the TTL, will add comand line
> later.
>
> {code:java}
> /**
> * Set TTL to a file.
> * @param fs the file system.
> * @param path the target file to set TTL.
> * @param path the TTL value.
> * @param property the type of TTL.
> * @throws IOException
> */
> public static void setTTl(FileSystem fs, Path path, int value, int property)
> {code}
> h3. Example
>
> {code:java}
> TtlInfo.setTTl(fs, file, System.currentTimeMillis() / 1000 / 60 + 60, 0);
> #The file will be expired in an 60 minutes.
> TtlInfo.setTTl(fs, file, 60, TtlInfo.SINCELASTWRITE); #The file will be
> expired after 60 minutes since last write.{code}
>
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