HDDS-8690. Ozone Support deletion related parameter dynamic configuration #4798

xichen01 · 2023-05-30T10:40:32Z

What changes were proposed in this pull request?

Support deletion related parameter dynamic configuration
OM:

ozone.key.deleting.limit.per.task

SCM:

hdds.scm.block.deletion.per-interval.max

Datanode:

hdds.datanode.block.deleting.limit.per.interval
hdds.datanode.block.delete.threads.max
ozone.block.deleting.service.workers

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-8690

How was this patch tested?

unit test.

…tion

adoroszlai

Thanks @xichen01 for working on this. Mostly looks good, but I would prefer to implement this after #4774, #4794 (which both need some committer reviews), and a follow-up that connects the annotated configurations with the reconfiguration handler. The change will be much simpler then.

xichen01 · 2023-06-05T18:04:27Z

Thanks @xichen01 for working on this. Mostly looks good, but I would prefer to implement this after #4774, #4794 (which both need some committer reviews), and a follow-up that connects the annotated configurations with the reconfiguration handler. The change will be much simpler then.

OK, I will update this PR after #4774 and #4794 were merged

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/HddsDatanodeService.java # hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/server/StorageContainerManager.java # hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestOmReconfigure.java # hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestScmReconfigure.java # hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OzoneManager.java

xichen01 · 2023-06-10T07:16:43Z

@adoroszlai Should we maintain Reconfigurable properties lists to describe which keys can be configured, this may require effort to keep the documentation in sync with the code.
Perhaps we could remove this section, and the user can get exactly this information via the command?

ozone/hadoop-hdds/docs/content/feature/Reconfigurability.md

Lines 41 to 48 in 9c6cd4b

    
           ## OM Reconfigurability 
        
           **Reconfigurable properties** 
        
           key | description 
        
           -----------------------------------|----------------------------------------- 
        
           ozone.administrators | OM startup user will be added to admin by default 
        
           >For example, modify `ozone.administrators` in ozone-site.xml and execute:

adoroszlai · 2023-06-10T08:54:45Z

Should we maintain Reconfigurable properties lists to describe which keys can be configured, this may require effort to keep the documentation in sync with the code. Perhaps we could remove this section, and the user can get exactly this information via the command?

Yes, let's remove the specific properties. Documenting the way to explore the list of properties is enough. An outdated doc may be worse than no doc.

…rieve the reconfigurable properties list

# Conflicts: # hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/ScmConfig.java # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/HddsDatanodeService.java # hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/server/StorageContainerManager.java # hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestScmReconfiguration.java # hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/service/KeyDeletingService.java

adoroszlai

Thanks @xichen01 for continuing work on this. Mostly looks good.

adoroszlai · 2023-07-19T05:08:22Z

...hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/server/StorageContainerManager.java

+  private String reconfHddsScmBlockDeletionPerIntervalMax(String newVal) {
+    getConfiguration().set(HDDS_SCM_BLOCK_DELETION_PER_INTERVAL_MAX, newVal);
+
+    getScmBlockManager().getSCMBlockDeletingService()
+        .setBlockDeleteTXNum(Integer.parseInt(newVal));
+    return newVal;
+  }


We simplify reconfiguration of this property by using reconfigurable = true and making sure the same instance of scmConfig is used in SCMBlockDeletingService as the one being reconfigured in SCM.

Full change (also fixes TestScmReconfiguration failure):
adoroszlai@1ce698f

adoroszlai · 2023-07-19T05:10:18Z

...gration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestDatanodeReconfiguration.java

+  @Test
+  public void blockDeleteThreadMax() throws ReconfigurationException {
+    // Start the service and get the original pool size
+    ThreadPoolExecutor executor = ((DeleteBlocksCommandHandler)
+        getFirstDatanode().getDatanodeStateMachine().getCommandDispatcher()
+            .getDeleteBlocksCommandHandler()).getExecutor();
+    int originPoolSize = executor.getMaximumPoolSize();
+
+    // Attempt to increase the pool size by 1 and verify if it's successful
+    getFirstDatanode().getReconfigurationHandler().reconfigurePropertyImpl(
+        HDDS_DATANODE_BLOCK_DELETE_THREAD_MAX,
+        String.valueOf(originPoolSize + 1));
+    assertEquals(originPoolSize + 1, executor.getMaximumPoolSize());
+    assertEquals(originPoolSize + 1, executor.getCorePoolSize());
+
+    // Attempt to decrease the pool size by 1 and verify if it's successful
+    getFirstDatanode().getReconfigurationHandler().reconfigurePropertyImpl(
+        HDDS_DATANODE_BLOCK_DELETE_THREAD_MAX,
+        String.valueOf(originPoolSize - 1));
+    assertEquals(originPoolSize - 1, executor.getMaximumPoolSize());
+    assertEquals(originPoolSize - 1,  executor.getCorePoolSize());
+  }
+
+  @Test
+  public void blockDeletingServiceWorkers() throws ReconfigurationException {
+    ScheduledThreadPoolExecutor executor = (ScheduledThreadPoolExecutor)
+        getFirstDatanode().getDatanodeStateMachine().getContainer()
+            .getBlockDeletingService().getExecutorService();
+    int originPoolSize = executor.getCorePoolSize();
+
+    // Attempt to increase the pool size by 1 and verify if it's successful
+    getFirstDatanode().getReconfigurationHandler().reconfigurePropertyImpl(
+        OZONE_BLOCK_DELETING_SERVICE_WORKERS,
+        String.valueOf(originPoolSize + 1));
+    assertEquals(originPoolSize + 1, executor.getCorePoolSize());
+
+    // Attempt to decrease the pool size by 1 and verify if it's successful
+    getFirstDatanode().getReconfigurationHandler().reconfigurePropertyImpl(
+        OZONE_BLOCK_DELETING_SERVICE_WORKERS,
+        String.valueOf(originPoolSize - 1));
+    assertEquals(originPoolSize - 1, executor.getCorePoolSize());
+  }


We can avoid duplication by converting to @ParameterizedTest: adoroszlai@5aeb768

Also fixes findbugs error:

M D RV: Return value of org.apache.hadoop.ozone.container.keyvalue.statemachine.background.BlockDeletingService.getBlockLimitPerInterval() ignored, but method has no side effect At TestDatanodeReconfiguration.java:[line 58]

https://github.com/xichen01/ozone/actions/runs/5577408467/jobs/10190274215#step:6:2367

adoroszlai · 2023-07-19T05:12:06Z

...e/integration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestOmReconfiguration.java

@@ -26,6 +26,7 @@
 import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_ADMINISTRATORS;
 import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_READONLY_ADMINISTRATORS;
+import static org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_KEY_DELETING_LIMIT_PER_TASK;


reconfigurableProperties() test case needs to be updated: adoroszlai@9d9226e

Fixes https://github.com/xichen01/ozone/actions/runs/5577408467/jobs/10190272872#step:5:4011

adoroszlai · 2023-07-19T05:14:11Z

...org/apache/hadoop/ozone/container/keyvalue/statemachine/background/BlockDeletingService.java

+  public DatanodeConfiguration getDfsConf() {
+    return dfsConf;


Nit: I think dnConf / getDnConf would be better.

…gurable

# Conflicts: # hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestScmReconfiguration.java

adoroszlai

Thanks @xichen01 for updating the patch.

adoroszlai · 2023-07-22T11:54:37Z

hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/conf/OzoneConfiguration.java

+  @Override
+  public synchronized <T> T getSingletonObject(Class<T> configurationClass) {
+    if (singletons.containsKey(configurationClass)) {
+      return (T) singletons.get(configurationClass);
+    }
+
+    T singletonObject = getObject(configurationClass);
+    singletons.put(configurationClass, singletonObject);
+    return singletonObject;
+  }


This can be implemented more simply:

Suggested change

@Override

public synchronized <T> T getSingletonObject(Class<T> configurationClass) {

if (singletons.containsKey(configurationClass)) {

return (T) singletons.get(configurationClass);

}

T singletonObject = getObject(configurationClass);

singletons.put(configurationClass, singletonObject);

return singletonObject;

}

public <T> T getSingletonObject(Class<T> configurationClass) {

return (T) singletons.computeIfAbsent(configurationClass,

c -> getObject(configurationClass));

}

It doesn't need to be synchronized, since it uses a ConcurrentHashMap's atomic operation.

adoroszlai · 2023-07-22T11:57:29Z

hadoop-hdds/config/src/main/java/org/apache/hadoop/hdds/conf/ConfigurationSource.java

+  /**
+   * Returns a singleton instance of the given configuration class.
+   * If an instance of the class has already been created,
+   * it will be returned; otherwise, a new instance will be created,
+   * stored in a map for future retrieval.
+   *
+   * @param configurationClass The class for which a singleton
+   *                           instance is required
+   * @return a singleton instance of the given class
+   */
+  default <T> T getSingletonObject(Class<T> configurationClass) {
+    return getObject(configurationClass);
+  }
+


I don't think this should be added to the ConfigurationSource interface, since it does not offer the "singleton" functionality.

getSingletonObject has been removed from ConfigurationSource.java

Thanks @xichen01 for making the change. On second thought, instead of adding a new method getSingletonObject, we should override getObject from ConfigurationSource with the singleton-based implementation. This way we can keep passing ConfigurationSource.

In the long run, we should move towards passing the type-safe config objects (DatanodeConfiguration, ScmConfig, etc.)

If we change the logic of ConfigurationSource#getObject directly, will this cause some of the tests to fail, since at the moment we can assume that each object from ConfigurationSource#getObject is independent and unaffected.
If the ConfigurationSource#getObject is "Singleton" that maybe cause tests to affect with each other.

Should we keep this implemented(getSingletonObject) temporarily, and implement a "Singleton" ConfigurationSource#getObject in another MR?

…rationSource

ChenSammi · 2023-09-20T08:00:59Z

@xichen01 , could you rebase this patch once you got time?

ChenSammi · 2023-09-20T13:47:59Z

hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/conf/OzoneConfiguration.java

@@ -335,4 +334,5 @@ private static void addDeprecatedKeys() {
            OZONE_CONTAINER_COPY_WORKDIR)
    });
  }
+


Can you revert the changes in this file since it's actually doesn't change any content?

ChenSammi · 2023-09-20T14:26:39Z

...c/main/java/org/apache/hadoop/ozone/container/common/statemachine/DatanodeConfiguration.java

@@ -137,7 +146,7 @@ public class DatanodeConfiguration {
   * missed. With max threads 5, optimistically DN can handle 1500 individual
   * container delete tx in 60s with RocksDB cache miss.
   */
-  @Config(key = "block.delete.threads.max",
+  @Config(key = BLOCK_DELETE_THREAD_MAX,


@xichen01 , I find this property is registered to ReconfigurationHandler, but it doesn't have the "reconfigurable = true" field, while the property "block.deleting.limit.per.interval" below has the "reconfigurable = true" but not registered to ReconfigurationHandler.
Could you explain it a bit more that what's the required steps to make a property reconfigurable, and whether "reconfigurable = true" is an mandatory attribute for a reconfigurable property?

If we change a configuration's value, if only need to change the value itself, and no additional operations are performed. we can just add a reconfigurable = true in @Config annotation. the reconfigurable configuration can be auto registered.

reconfigurationHandler = new ReconfigurationHandler("DN", conf, this::checkAdminPrivilege) .register(HDDS_DATANODE_BLOCK_DELETE_THREAD_MAX, this::reconfigBlockDeleteThreadMax) .register(OZONE_BLOCK_DELETING_SERVICE_WORKERS, this::reconfigDeletingServiceWorkers) .register(conf.getObject(DatanodeConfiguration.class)); // register the reconfigurable configuration

then this configuration's value can be modify in runtime by ozone admin reconfig command.

But If need to do something extra when modifying the configuration value, such as modifying the thread pool (block.delete.threads.max), we need to register the operation manually.

So either register the property explicitly with a consumer handler, or set the "reconfigurable = true" attribute to the property. The later way the property will be auto registered with a default consumer handler, right? @xichen01

Yes, if you set the "reconfigurable = true" attribute, the configuration will be auto handled when "reconfigure".
but one point needs to notice:

The object registered to ReconfigurationHandler must be the same conf as the one that wants to get the value after reconfiguring.
such as:

DatanodeConfiguration dnConf1 = conf.getObject(DatanodeConfiguration.class) DatanodeConfiguration dnConf2 = conf.getObject(DatanodeConfiguration.class) reconfigurationHandler = new ReconfigurationHandler("DN", conf, this::checkAdminPrivilege) .register(dnConf1);

After reconfiguring, only dnConf1 can get the changed value, because only dnConf1 was registered to the ReconfigurationHandler

@xichen01 , thanks for the explain.

ChenSammi · 2023-09-20T14:33:26Z

...rc/main/java/org/apache/hadoop/ozone/container/common/statemachine/DatanodeStateMachine.java

@@ -260,7 +261,7 @@ public DatanodeStateMachine(DatanodeDetails datanodeDetails,

  @VisibleForTesting
  public DatanodeStateMachine(DatanodeDetails datanodeDetails,
-                              ConfigurationSource conf) throws IOException {
+                              OzoneConfiguration conf) throws IOException {


Why we change the conf from ConfigurationSource to OzoneConfiguration? it's also changed in below OzoneContainer.java.

@xichen01 , is this one missed?

ChenSammi · 2023-09-20T14:43:15Z

hadoop-hdds/docs/content/feature/Reconfigurability.md

-## OM Reconfigurability
+## Retrieve the reconfigurable properties list
+To retrieve all the reconfigurable properties list for a specific component in Ozone,
+you can use the command: `ozone admin reconfig properties --address=<ip:port>`.


ozone admin reconfig properties --address=<ip:port> doesn't work. The accepted format is what you used in the below examples.

Already corrected

ChenSammi · 2023-09-20T14:49:28Z

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OzoneManager.java

@@ -4704,6 +4707,14 @@ private String reconfOzoneReadOnlyAdmins(String newVal) {
    return String.valueOf(newVal);
  }

+  private String reconfOzoneKeyDeletingLimitPerTask(String newVal) {
+    getConfiguration().set(OZONE_KEY_DELETING_LIMIT_PER_TASK, newVal);


Please add the check that newValue should be a positive value.

I think may we can provide a conf.getUnsignedInt() for those configurations which must be larger than 0. we can do some check in conf.getUnsignedInt()

You mean conf.setUnsignedInt? It's a good idea. But the configuration class is in hadoop common module.

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/statemachine/background/BlockDeletingService.java

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/BlockDeletingService.java

ChenSammi · 2023-09-22T02:29:17Z

@xichen01 , thanks for the improving the patch. There is one comment missed to address. And could you rebase the patch since HDDS-8869 is merged.

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/DeleteBlocksCommandHandler.java

xichen01 · 2023-09-25T11:30:41Z

@xichen01 , thanks for the improving the patch. There is one comment missed to address. And could you rebase the patch since HDDS-8869 is merged.

Those useless modifies have been reverted.

ChenSammi · 2023-10-08T03:33:29Z

@xichen01 , the last patch looks good, could you rebase the patch to solve the conflicts?

ChenSammi · 2023-10-08T04:04:17Z

hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/HddsDatanodeService.java

+  private String reconfigBlockDeleteThreadMax(String value) {
+    getConf().set(HDDS_DATANODE_BLOCK_DELETE_THREAD_MAX, value);
+    conf.getObject(DatanodeConfiguration.class)
+        .setBlockDeleteThreads(Integer.parseInt(value));


Looks like this line is covered by L684 already. It can be removed.

# Conflicts: # hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/service/KeyDeletingService.java

ChenSammi · 2023-10-08T14:15:44Z

@xichen01 , can you check the failed test "TestOzoneManagerHAKeyDeletion.testKeyDeletion"? It might be related with the code change.

xichen01 · 2023-10-08T14:18:12Z

@xichen01 , can you check the failed test "TestOzoneManagerHAKeyDeletion.testKeyDeletion"? It might be related with the code change.

The master branch have this Error too https://github.com/apache/ozone/actions/runs/6439086990/job/17486681800

ChenSammi · 2023-10-08T15:15:44Z

@xichen01 , can you check the failed test "TestOzoneManagerHAKeyDeletion.testKeyDeletion"? It might be related with the code change.

The master branch have this Error too https://github.com/apache/ozone/actions/runs/6439086990/job/17486681800

Yes, it's reproduced with master branch. Created HDDS-9414 to track the failure.

xichen01 · 2023-10-08T15:18:48Z

@xichen01 , can you check the failed test "TestOzoneManagerHAKeyDeletion.testKeyDeletion"? It might be related with the code change.

The master branch have this Error too https://github.com/apache/ozone/actions/runs/6439086990/job/17486681800

Yes, it's reproduced with master branch. Created HDDS-9414 to track the failure.

@adoroszlai has create a ticket
https://issues.apache.org/jira/projects/HDDS/issues/HDDS-9412

…tion (apache#4798)

HDDS-8690. Ozone Support deletion related parameter dynamic configura…

6bc1e04

…tion

adoroszlai reviewed Jun 5, 2023

View reviewed changes

adoroszlai marked this pull request as draft June 6, 2023 10:01

xichen01 added 2 commits June 9, 2023 23:48

Add integration test; Support reconfigDeletingServiceWorkers

2982531

xichen01 added 3 commits June 11, 2023 23:30

Remove the doc of reconfigurable properties lists; Add the doc of ret…

bfbb302

…rieve the reconfigurable properties list

Fix test

72fb393

xichen01 marked this pull request as ready for review July 17, 2023 15:12

xichen01 requested a review from adoroszlai July 17, 2023 15:13

adoroszlai reviewed Jul 19, 2023

View reviewed changes

adoroszlai and others added 8 commits July 21, 2023 01:54

Make ScmConfig block.deletion.per-interval.max reconfigurable

eedccae

parameterize datanode reconfiguration test

3ab27db

fix TestOmReconfiguration#reconfigurableProperties

f26e3b2

Make ScmConfig hdds.datanode.block.deleting.limit.per.interva reconfi…

be3c65b

…gurable

Remove useless synchronized

048781c

use getSingletonObject() for scmConfig

83019ef

use getSingletonObject() for dnConfig

534e740

Merge branch 'master' into HDDS-8690

b8caed8

# Conflicts: # hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/reconfig/TestScmReconfiguration.java

adoroszlai reviewed Jul 22, 2023

View reviewed changes

xichen01 added 4 commits July 23, 2023 02:09

Simplicity getSingletonObject; Remove getSingletonObject from Configu…

2ec0496

…rationSource

remove synchronized

0ad536f

Implementing the singleton-based getObject on OzoneConfigure

3c97324

Make ConfigurationSource#getObject singleton-based

91a4c35

ChenSammi reviewed Sep 20, 2023

View reviewed changes

xichen01 added 5 commits September 21, 2023 22:45

Modify doc; checkArgument for some conf

c0a0e03

Merge branch 'master' into HDDS-8690

06730ba

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/statemachine/background/BlockDeletingService.java

Fix Conflicts

4092971

Merge branch 'master' into HDDS-8690

ab801b7

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/BlockDeletingService.java

Remove useless file

0ec002d

xichen01 added 2 commits September 25, 2023 19:04

Revert the ConfigurationSource#getObject;Fix test

9a96466

Merge branch 'master' into HDDS-8690

52a7779

# Conflicts: # hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/DeleteBlocksCommandHandler.java

Fix unit test

96764ba

xichen01 requested a review from ChenSammi September 25, 2023 13:59

Fix unit test

8eff4bf

ChenSammi reviewed Oct 8, 2023

View reviewed changes

xichen01 added 3 commits October 8, 2023 14:34

Merge branch 'master' into HDDS-8690

0d426ff

# Conflicts: # hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/service/KeyDeletingService.java

Remove useless set op

8f66bed

Fix checkstyle

f634be4

ChenSammi approved these changes Oct 8, 2023

View reviewed changes

ChenSammi merged commit f635904 into apache:master Oct 8, 2023
31 of 32 checks passed

ibrusentsev pushed a commit to ibrusentsev/ozone that referenced this pull request Nov 14, 2023

HDDS-8690. Ozone Support deletion related parameter dynamic configura…

344b3ff

…tion (apache#4798)

HDDS-8690. Ozone Support deletion related parameter dynamic configuration #4798

HDDS-8690. Ozone Support deletion related parameter dynamic configuration #4798

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xichen01 commented May 30, 2023 • edited Loading

What changes were proposed in this pull request?

What is the link to the Apache JIRA

How was this patch tested?

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