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https://issues.apache.org/jira/browse/HDFS-14123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16775790#comment-16775790
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Hadoop QA commented on HDFS-14123:
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| (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
31s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 22m
53s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
5s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
9s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
13m 5s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
52s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
50s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
13m 23s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
24s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
52s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}117m 34s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
45s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}181m 26s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestBPOfferService |
| | hadoop.hdfs.server.namenode.ha.TestDNFencingWithReplication |
| | hadoop.hdfs.qjournal.server.TestJournalNodeSync |
| | hadoop.hdfs.TestSafeMode |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | HDFS-14123 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12959863/HDFS-14123.01.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux 96c2b7017a86 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14
08:52:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 05bce33 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_191 |
| findbugs | v3.1.0-RC1 |
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/26310/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/26310/testReport/ |
| Max. process+thread count | 2978 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/26310/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> NameNode failover doesn't happen when running fsfreeze for the NameNode dir
> (dfs.namenode.name.dir)
> ---------------------------------------------------------------------------------------------------
>
> Key: HDFS-14123
> URL: https://issues.apache.org/jira/browse/HDFS-14123
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha
> Reporter: Toshihiro Suzuki
> Assignee: Toshihiro Suzuki
> Priority: Major
> Attachments: HDFS-14123.01.patch, HDFS-14123.01.patch
>
>
> I ran fsfreeze for the NameNode dir (dfs.namenode.name.dir) in my cluster for
> test purpose, but NameNode failover didn't happen.
> {code}
> fsfreeze -f /mnt
> {code}
> /mnt is a separate filesystem partition from /. And the NameNode dir
> "dfs.namenode.name.dir" is /mnt/hadoop/hdfs/namenode.
> I checked the source code, and I found monitorHealth RPC from ZKFC doesn't
> fail even if the NameNode dir is frozen. I think that's why the failover
> doesn't happen.
> Also if the NameNode dir is frozen, it looks like FSImage.rollEditLog() gets
> stuck like the following, and it keeps holding the write lock of
> FSNamesystem, which causes HDFS service down:
> {code}
> "IPC Server handler 5 on default port 8020" #53 daemon prio=5 os_prio=0
> tid=0x00007f56b96e2000 nid=0x5042 in Object.wait() [0x00007f56937bb000]
> java.lang.Thread.State: TIMED_WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync$SyncEdit.logSyncWait(FSEditLogAsync.java:317)
> - locked <0x00000000c58ca268> (a
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync.logSyncAll(FSEditLogAsync.java:147)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.endCurrentLogSegment(FSEditLog.java:1422)
> - locked <0x00000000c58ca268> (a
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.rollEditLog(FSEditLog.java:1316)
> - locked <0x00000000c58ca268> (a
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.rollEditLog(FSImage.java:1322)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.rollEditLog(FSNamesystem.java:4740)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.rollEditLog(NameNodeRpcServer.java:1307)
> at
> org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolServerSideTranslatorPB.rollEditLog(NamenodeProtocolServerSideTranslatorPB.java:148)
> at
> org.apache.hadoop.hdfs.protocol.proto.NamenodeProtocolProtos$NamenodeProtocolService$2.callBlockingMethod(NamenodeProtocolProtos.java:14726)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1025)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:898)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:844)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1876)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2727)
> Locked ownable synchronizers:
> - <0x00000000c5f4ca10> (a
> java.util.concurrent.locks.ReentrantReadWriteLock$FairSync)
> {code}
> I believe NameNode failover should happen in this case. One idea is to check
> if the NameNode dir is working when NameNode receives monitorHealth RPC from
> ZKFC.
> I will attach a patch for this idea.
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