HBASE-27798: Client side should back off based on wait interval in RpcThrottlingException #5275
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.hadoop.hbase.client.backoff; | ||
|
|
||
| import java.util.OptionalLong; | ||
| import java.util.concurrent.TimeUnit; | ||
| import org.apache.hadoop.hbase.HBaseServerException; | ||
| import org.apache.hadoop.hbase.quotas.RpcThrottlingException; | ||
| import org.apache.yetus.audience.InterfaceAudience; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| @InterfaceAudience.Private | ||
| public class HBaseServerExceptionPauseManager { | ||
| private static final Logger LOG = LoggerFactory.getLogger(HBaseServerExceptionPauseManager.class); | ||
|
|
||
| private final long pauseNs; | ||
| private final long pauseNsForServerOverloaded; | ||
|
|
||
| public HBaseServerExceptionPauseManager(long pauseNs, long pauseNsForServerOverloaded) { | ||
| this.pauseNs = pauseNs; | ||
| this.pauseNsForServerOverloaded = pauseNsForServerOverloaded; | ||
| } | ||
|
|
||
| /** | ||
| * Returns the nanos, if any, for which the client should wait | ||
| * @param error The exception from the server | ||
| * @param remainingTimeNs The remaining nanos before timeout | ||
| * @return The time, in nanos, to pause. If empty then pausing would exceed our timeout, so we | ||
| * should throw now | ||
| */ | ||
| public OptionalLong getPauseNsFromException(Throwable error, long remainingTimeNs) { | ||
|
||
| long expectedSleepNs; | ||
| if (error instanceof RpcThrottlingException) { | ||
| RpcThrottlingException rpcThrottlingException = (RpcThrottlingException) error; | ||
| expectedSleepNs = TimeUnit.MILLISECONDS.toNanos(rpcThrottlingException.getWaitInterval()); | ||
| if (expectedSleepNs > remainingTimeNs) { | ||
|
||
| if (LOG.isDebugEnabled()) { | ||
| LOG.debug("RpcThrottlingException suggested pause of {}ns which would exceed " | ||
| + "the timeout. We should throw instead.", expectedSleepNs, rpcThrottlingException); | ||
| } | ||
| return OptionalLong.empty(); | ||
| } | ||
| if (LOG.isDebugEnabled()) { | ||
| LOG.debug("Sleeping for {}ns after catching RpcThrottlingException", expectedSleepNs, | ||
| rpcThrottlingException); | ||
| } | ||
| } else { | ||
| expectedSleepNs = | ||
bbeaudreault marked this conversation as resolved.
Show resolved
Hide resolved
|
||
| HBaseServerException.isServerOverloaded(error) ? pauseNsForServerOverloaded : pauseNs; | ||
| } | ||
| return OptionalLong.of(expectedSleepNs); | ||
| } | ||
|
|
||
| } | ||
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Do we need to test this here?
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
I believe this logic is covered by existing tests in
TestAsyncClientPauseForServerOverloaded