HDDS-2240. Command line tool for OM Admin by hanishakoneru · Pull Request #9 · apache/ozone

hanishakoneru · 2019-10-13T19:12:38Z

A command line tool (ozone omha) to get information related to OM HA.
This Jira proposes to add the getServiceState option for OM HA which lists all the OMs in the service and their corresponding Ratis server roles (LEADER/ FOLLOWER).
We can later add more options to this tool.

Migrated from apache/hadoop#1586

hanishakoneru · 2019-10-15T00:29:12Z

@anuengineer , @elek , @dineshchitlangia,
I have addressed your review comments from apache/hadoop#1586. Can you please review the changes.

dineshchitlangia · 2019-10-15T04:05:04Z

@hanishakoneru Thank you very much for the update.
The integration test failure is unrelated to patch, I verified this in my env.
Could you please address the new findbug violation ?

hanishakoneru · 2019-10-17T16:51:38Z

@anuengineer, @elek , can you please take a look at the new patch.

anuengineer · 2019-10-17T17:04:34Z

So today when a client connects to the OM -- it connect reads to get ServiceList, without this API we cannot communicate to Ozone. So Why would this info be an independent API, since in my mind this info is needed by the clients to communicate to OM, since the leader needs to be discovered.
if that is true, then admin command can use the same API do discover the state right ? do we need a new API in the RPC layer? Perhaps I am missing something here, Thanks

The client connects to an OM and submits a getServiceList request. If this OM is not the leader, then the client tries a different OM. This all happens through OMFailoverProxyProvider.
Currently, the getServiceList API is only used to discover the SCM address. It does not return the list of OMs in the cluster.
But based on which OM serves the getServiceList request, we can presume it to be the leader. We do not need a new request type.

hanishakoneru · 2019-10-18T19:07:13Z

Updated the patch to remove new OMRequest.
Using GetServiceList Api to provide the Leader role info as well.

anuengineer · 2019-10-18T22:40:18Z

There is a compile failure, @hanishakoneru please take a look when you get a chance, thanks

hanishakoneru · 2019-10-21T21:19:24Z

/retest

hanishakoneru · 2019-10-23T21:57:19Z

@anuengineer, I fixed the compile failure. Please take a look when you get a chance. Thanks.

smengcl · 2019-10-24T22:29:23Z

Compilation passed with mvn clean install -DskipTests=true -Dmaven.javadoc.skip=true
Checked ./hadoop-ozone/dist/target/ozone-0.5.0-SNAPSHOT/bin/ozone, admin command shows up:

 Client Commands:
admin Ozone admin tool

Ran ozone admin om getserviceroles --om-service-id=id1 in a docker-compose cluster with profile compose/ozone-om-ha/. It succeeded on om1 but throws this scary protobuf.ServiceException:

bash-4.2$ ozone admin om getserviceroles --om-service-id=id1
com.google.protobuf.ServiceException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ozone.om.exceptions.NotLeaderException): OM om2 is not the leader. Suggested leader is om3
at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.createNotLeaderException(OzoneManagerProtocolServerSideTranslatorPB.java:192)
at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.submitReadRequestToOM(OzoneManagerProtocolServerSideTranslatorPB.java:178)
at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.processRequest(OzoneManagerProtocolServerSideTranslatorPB.java:110)
at org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:72)
at org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslatorPB.submitRequest(OzoneManagerProtocolServerSideTranslatorPB.java:100)
at org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos$OzoneManagerService$2.callBlockingMethod(OzoneManagerProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1025)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:876)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:822)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/javax.security.auth.Subject.doAs(Subject.java:423)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2682)
, while invoking $Proxy16.submitRequest over nodeId=om2,nodeAddress=om2:9862 after 1 failover attempts. Trying to failover immediately.
om1 : FOLLOWER
om2 : FOLLOWER
om3 : LEADER

The same exception shows up when I'm running the same command on om2 or om3. Looks like it is always trying to contact om2, which is not the leader in our case. Can we suppress this fail over message unless the command fails?

bharatviswa504 · 2019-10-26T14:45:46Z

Just a question, why are these log level being setting here and why it is set INFO, and also NativeCodeLoader to ERROR

These are the settings which were set for SCM Cli. I will update the root logger to WARN. We can probably keep the NativeCodeLoader to Error so that the "Unable to load native-hadoop library for your platform" warning is not displayed always.

bharatviswa504

Overall LGTM. One minor comment in place.

bharatviswa504 · 2019-10-26T14:53:15Z

Can we name this service-id, instead of --om-service-id, as anyway this command is used ozone admin om --getserviceroles.

Sure will update it.

bharatviswa504 · 2019-10-26T15:01:13Z

New line missing, for newly added files.

Sorry did not understand this.

From the latest CI run, this doesn't seem to be an issue.
@hanishakoneru He meant that one of the checkstyle rule is that any source file must have an empty new line as its last line.

Yes. Newline at end of the file. I think there is no checkstyle rule for this.

@bharatviswa504 I just downloaded the patch and confirmed the new line at EOF is there. So no changes are needed.

hanishakoneru · 2019-10-29T00:38:32Z

Thanks for the reviews @smengcl and @bharatviswa504 .
I addressed your comments in the latest patch.

smengcl · 2019-10-29T12:51:28Z

Thanks @hanishakoneru . The command is working as expected now. lgtm +1. Pending @bharatviswa504 's comments.

bash-4.2$ ozone admin om getserviceroles
Missing required option '--service-id=<omServiceId>'
Usage: ozone admin om getserviceroles [-hV] -id=<omServiceId>
List all OMs and their respective Ratis server roles
-h, --help Show this help message and exit.
-id, --service-id=<omServiceId>
OM Service ID
-V, --version Print version information and exit.
bash-4.2$ ozone admin om getserviceroles --service-id=id1
om1 : FOLLOWER
om3 : FOLLOWER
om2 : LEADER
bash-4.2$ ozone admin om getserviceroles -id=id1
om1 : FOLLOWER
om3 : FOLLOWER
om2 : LEADER

anuengineer · 2019-10-29T18:27:03Z

Hi All, Thank you all for an extensive code review of this patch. If we are all in Sync and there are no issues left outstanding, is it okay for me to commit this ?

I am +1 on this patch, and it does look very good to me. But I will wait for signal from others. Thanks

dineshchitlangia

+1 for merge. Thanks @hanishakoneru for the work and everyone for the reviews.

arp7 · 2019-10-29T18:36:14Z

Thank you all for carefully reviewing multiple iterations of this patch! 🙂

bharatviswa504

+1 LGTM (with one minor comment of adding a new line at end of newly added files). This can be taken care of during commit.

bharatviswa504 · 2019-10-29T19:40:36Z

Thank You everyone for the reviews and @hanishakoneru for the contribution.

hanishakoneru · 2019-10-29T19:42:51Z

Thank you all for the reviews.

HDDS-4186: Adjust RetryPolicy of SCMConnectionManager for SCM/Recon

# This is the 1st commit message: Initial Commit # This is the commit message apache#2: more slight changes # This is the commit message apache#3: changes++ # This is the commit message apache#4: getExecutorService Changes # This is the commit message apache#5: applyTransaction() Changes # This is the commit message apache#6: changes++ # This is the commit message apache#7: TestOzoneManagerLock changes # This is the commit message apache#8: add changes # This is the commit message apache#9: add more minor changes # This is the commit message apache#10: add config to ozone-default.xml # This is the commit message apache#11: minor changes # This is the commit message apache#12: change modulo logic # This is the commit message apache#13: changes # This is the commit message apache#14: changes++ # This is the commit message apache#15: add changes++ # This is the commit message apache#16: minor changes # This is the commit message apache#17: Changes (to be reverted) # This is the commit message apache#18: Changes 09/05

…h Ozone ListStatusLight API (apache#9) Cherry picked: e96e314 Conflict files: hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/BasicOmKeyInfo.java hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/fs/ozone/TestOzoneFileSystem.java hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/client/rpc/TestOzoneRpcClientWithKeyLatestVersion.java hadoop-ozone/ozonefs-common/src/main/java/org/apache/hadoop/fs/ozone/BasicOzoneClientAdapterImpl.java hadoop-ozone/ozonefs-common/src/main/java/org/apache/hadoop/fs/ozone/BasicRootedOzoneClientAdapterImpl.java hadoop-ozone/ozonefs-common/src/main/java/org/apache/hadoop/fs/ozone/BasicRootedOzoneFileSystem.java Change-Id: I90e813e03fcc661f66ff8800b1b73ca227a389b2

hanishakoneru changed the base branch from HDDS-2240 to masterOctober 13, 2019 19:14

hanishakoneru mentioned this pull request Oct 13, 2019
HDDS-2240. Command line tool for OM HA. apache/hadoop#1586
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hanishakoneru requested review from anuengineer, arp7 and elek October 13, 2019 19:42

hanishakoneru mentioned this pull request Oct 13, 2019
HDDS-2291. Acceptance tests for OM HA. #11
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dineshchitlangia requested changes Oct 15, 2019
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Comment thread...ne/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/ratis/OzoneManagerRatisServer.java Outdated

anuengineer reviewed Oct 17, 2019
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hanishakoneru force-pushed the HDDS-2240 branch from f52a9d5 to 5aae791Compare October 18, 2019 19:06

bharatviswa504 reviewed Oct 21, 2019
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Comment threadhadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/rpc/RpcClient.java Outdated

bharatviswa504 reviewed Oct 26, 2019
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hanishakoneru force-pushed the HDDS-2240 branch from 2de0989 to 9298f88Compare October 29, 2019 00:35

HDDS-2240. Ozone Admin OM command line tool.
f56ad22

hanishakoneru force-pushed the HDDS-2240 branch from 9298f88 to f56ad22Compare October 29, 2019 00:37

dineshchitlangia approved these changes Oct 29, 2019
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bharatviswa504 reviewed Oct 29, 2019
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bharatviswa504 merged commit 7b043e9 into apache:masterOct 29, 2019

xiaoyuyao mentioned this pull request May 14, 2020
HDDS-3154. Intermittent failure in Test2WayCommitInRatis. #672
Merged

GlenGeng-awx referenced this pull request in GlenGeng-awx/hadoop-ozone Sep 18, 2020
Merge pull request#9from GlenGeng/tencent-test-failover
aca663d
HDDS-4186: Adjust RetryPolicy of SCMConnectionManager for SCM/Recon

hanishakoneru deleted the HDDS-2240 branch December 1, 2020 21:28

kuenishi referenced this pull request in pfnet/ozone Feb 22, 2022
Bump version (#9)
6ac257d

k5342 pushed a commit to k5342/ozone that referenced this pull request Oct 20, 2023
Readonly mode (apache#9)
1ad9c8f

ivanzlenko pushed a commit to ivanzlenko/ozone that referenced this pull request Apr 11, 2025
HDDS-10000. UD-646. Add tests for multiple DC. (apache#9)
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