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https://issues.apache.org/jira/browse/YARN-7899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16537719#comment-16537719
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genericqa commented on YARN-7899:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 29m
32s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Findbugs executables are not available. {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 3 new or modified test
files. {color} |
|| || || || {color:brown} branch-2 Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
27s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m
13s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m
3s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
55s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
2s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
32s{color} | {color:green} branch-2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
11s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
46s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
54s{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} javadoc {color} | {color:green} 1m
32s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m
23s{color} | {color:green} hadoop-yarn-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m
33s{color} | {color:green} hadoop-yarn-server-common in the patch passed.
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 15m
28s{color} | {color:green} hadoop-yarn-server-nodemanager in the patch passed.
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
41s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 94m 17s{color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:f667ef1 |
| JIRA Issue | YARN-7899 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12930898/YARN-7899-branch-2.v3.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle |
| uname | Linux aa2b9ae227e9 4.4.0-130-generic #156-Ubuntu SMP Thu Jun 14
08:53:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | branch-2 / 4c54ddd |
| maven | version: Apache Maven 3.3.9
(bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T16:41:47+00:00) |
| Default Java | 1.7.0_181 |
| Test Results |
https://builds.apache.org/job/PreCommit-YARN-Build/21194/testReport/ |
| Max. process+thread count | 161 (vs. ulimit of 10000) |
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
U: hadoop-yarn-project/hadoop-yarn |
| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/21194/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> [AMRMProxy] Stateful FederationInterceptor for pending requests
> ---------------------------------------------------------------
>
> Key: YARN-7899
> URL: https://issues.apache.org/jira/browse/YARN-7899
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Botong Huang
> Assignee: Botong Huang
> Priority: Major
> Labels: amrmproxy, federation
> Fix For: 3.2.0
>
> Attachments: YARN-7899-branch-2.v3.patch, YARN-7899.v1.patch,
> YARN-7899.v3.patch
>
>
> Today FederationInterceptor (in AMRMProxy for YARN Federation) is stateless
> in terms of pending (outstanding) requests. Whenever AM issues new requests,
> FI simply splits and sends them to sub-cluster YarnRMs and forget about them.
> This JIRA attempts to make FI stateful so that it remembers the pending
> requests in all relevant sub-clusters. This has two major benefits:
> 1. It is a prerequisite for FI to be able to cancel pending request in one
> sub-cluster and re-send it to other sub-clusters. This is needed for load
> balancing and to fully comply with the relax locality fallback to ANY
> semantic. When we send a request to one sub-cluster, we have effectively
> restrained the allocation for this request to be within this sub-cluster
> rather than everywhere. If the cluster capacity in this sub-cluster for this
> app is full or this YarnRM is overloaded and slow, the request will be stuck
> there for a long time even if there is free capacity in other sub-clusters.
> We need FI to remember and adjust the pending requests on the fly.
> 2. This makes pending request recovery easier when YarnRM fails over. Today
> whenever one sub-cluster RM fails over, in order to recover lost pending
> requests for this sub-cluster,
> we have to propagate the ApplicationMasterNotRegisteredException from the
> YarnRM back to AM, triggering a full pending resend from AM. This contains
> pending for not only the failing-over sub-cluster, but everyone. Since our
> split-merge (AMRMProxyPolicy) does not guarantee idempotency, the same
> request we sent to sub-cluster-1 earlier might be resent to sub-cluster-2. If
> both these YarnRMs have not failed over, they will both allocate for this
> request, leading to over-allocation. Also, these full pending resends also
> puts unnecessary load on every YarnRM in the cluster everytime one YarnRM
> fails over. With stateful FederationInterceptor, since we remember pending
> requests we have sent out earlier, we can shield the
> ApplicationMasterNotRegisteredException for AM and resend the pending only to
> the failed over YarnRM. This eliminates over-allocation and minimizes the
> recovery overhead.
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