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https://issues.apache.org/jira/browse/TEZ-4070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17198738#comment-17198738
]
Hadoop QA commented on TEZ-4070:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 16m
21s{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} No case conflicting files found. {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:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 11m
1s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
27s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
15s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
40s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 1m
37s{color} | {color:blue} Used deprecated FindBugs config; considering
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
35s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
17s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 12s{color} | {color:orange} tez-api: The patch generated 1 new + 64
unchanged - 0 fixed = 65 total (was 64) {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} xml {color} | {color:green} 0m
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m
56s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
50s{color} | {color:green} tez-api in the patch passed. {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} 36m 12s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base:
https://ci-hadoop.apache.org/job/PreCommit-TEZ-Build/16/artifact/out/Dockerfile
|
| JIRA Issue | TEZ-4070 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/13011779/TEZ-4070.05.patch |
| Optional Tests | dupname asflicense javac javadoc unit xml compile spotbugs
findbugs checkstyle |
| uname | Linux 3e460539b0b5 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/tez.sh |
| git revision | master / 1fba8f71a |
| Default Java | Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
| checkstyle |
https://ci-hadoop.apache.org/job/PreCommit-TEZ-Build/16/artifact/out/diff-checkstyle-tez-api.txt
|
| Test Results |
https://ci-hadoop.apache.org/job/PreCommit-TEZ-Build/16/testReport/ |
| Max. process+thread count | 246 (vs. ulimit of 5500) |
| modules | C: tez-api U: tez-api |
| Console output |
https://ci-hadoop.apache.org/job/PreCommit-TEZ-Build/16/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=3.0.1 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |
This message was automatically generated.
> SSLFactory not closed in DAGClientTimelineImpl caused native memory issues
> --------------------------------------------------------------------------
>
> Key: TEZ-4070
> URL: https://issues.apache.org/jira/browse/TEZ-4070
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Xun REN
> Assignee: László Bodor
> Priority: Major
> Attachments: TEZ-4070.01.patch, TEZ-4070.02.patch, TEZ-4070.03.patch,
> TEZ-4070.04.patch, TEZ-4070.05.patch
>
>
> Hi,
> Recently, we're facing native memory issues on Redhat servers. It crashed
> completely our servers.
> *Context:*
> - HDP-2.6.5
> - Redhat 7.4
> *Problem:*
> After upgrading from HDP-2.6.2 to HDP-2.6.5, after several days running, our
> HiveServer2 can eat up to more than 100GB memory. However, we have configured
> Xmx20G and MaxMetaspace to 10GB.
> After searching, we have found the similar issue here:
> https://issues.apache.org/jira/browse/YARN-5309
> This is fixed in the hadoop-common module. Our version includes already this
> issue, however, we still have the problem.
> After searching, I have found that in the class
> org.apache.tez.dag.api.client.TimelineReaderFactory of Tez, if HTTPS is used
> for YARN, it will create SSLFactory which is not destroyed after utilization.
> TimelineReaderFactory is referenced in the class DAGClientTimelineImpl.
> If ATS is used and DAG is completed, the method switchToTimelineClient in the
> class DAGClientImpl will be called. It will close the previous HTTPClient,
> but not the SSLFactory inside. And the SSLFactory will create a thread for
> each connection. Finally, we will get thousands of threads consuming a lot
> native memories.
> {code:java}
> private void switchToTimelineClient() throws IOException, TezException {
> realClient.close();
> realClient = new DAGClientTimelineImpl(appId, dagId, conf, frameworkClient,
> (int) (2 * PRINT_STATUS_INTERVAL_MILLIS));
> if (LOG.isDebugEnabled()) {
> LOG.debug("dag completed switching to DAGClientTimelineImpl");
> }
> }{code}
> I have checked on another environment which is still on HDP-2.6.2, we also
> have a lot of running threads holding by SSLFactory. That means the problem
> is zoomed in the version HDP-2.6.5
>
> *How to reproduce the problem:*
> 1. Use Tez as Hive execution engine
> 2. Launch a Beeline session for Hive
> 3. Do a select with a simple where clause on a table
> 4. Repeat steps 2-3 in order to open different connections (it is the case
> for a shared cluster with multiple clients).
> Finally, you can check in the thread dump file, that a lot of threads are
> named "Truststore reloader thread". And the native memory usage is very high
> by doing the command "top" or "ps".
>
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