mattisonchao opened a new pull request, #17237:
URL: https://github.com/apache/pulsar/pull/17237
### Motivation
When invoking `readMoreEntries` we have to check if the `havePendingRead`
state is `true` to avoid reading the same position many times in the race
condition.
You can add `invocationCount` on the `Test` annotation to call the new test
multiple times to understand the problem.
The relative logs:
```
2022-08-23T19:10:01,016 - INFO -
[pulsar-web-191-16:Slf4jRequestLogWriter@62] - 127.0.0.1 - -
[23/Aug/2022:19:10:01 +0800] "GET
/admin/v2/namespaces/my-property/throttling_ns/subscriptionDispatchRate
HTTP/1.1" 200 124 "-" "Pulsar-Java-v2.11.0-SNAPSHOT" 2
2022-08-23T19:10:01,019 - INFO -
[pulsar-web-191-14:Slf4jRequestLogWriter@62] - 127.0.0.1 - -
[23/Aug/2022:19:10:01 +0800] "GET
/admin/v2/namespaces/my-property/throttling_ns/dispatchRate HTTP/1.1" 200 123
"-" "Pulsar-Java-v2.11.0-SNAPSHOT" 2
2022-08-23T19:10:01,021 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:01,021 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:0
2022-08-23T19:10:01,021 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:01,023 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [0] in the listener
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:1
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:2
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:3
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:4
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:5
2022-08-23T19:10:01,036 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:01,037 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [1] in the listener
2022-08-23T19:10:01,037 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [2] in the listener
2022-08-23T19:10:01,037 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [3] in the listener
2022-08-23T19:10:01,037 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [4] in the listener
2022-08-23T19:10:01,037 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [5] in the listener
2022-08-23T19:10:01,037 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:01,037 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:6
2022-08-23T19:10:01,037 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:01,038 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:01,038 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:7
2022-08-23T19:10:01,038 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:01,038 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [6] in the listener
2022-08-23T19:10:01,038 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [7] in the listener
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:8
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:9
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:10
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:11
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:12
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:13
2022-08-23T19:10:02,039 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:14
2022-08-23T19:10:02,040 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:15
2022-08-23T19:10:02,040 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:16
2022-08-23T19:10:02,040 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:17
2022-08-23T19:10:02,040 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [8] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [9] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [10] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [11] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [12] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [13] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [14] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [15] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [16] in the listener
2022-08-23T19:10:02,041 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [17] in the listener
2022-08-23T19:10:03,042 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:03,042 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:18
2022-08-23T19:10:03,042 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:03,043 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:03,043 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:18
2022-08-23T19:10:03,043 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:03,043 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:03,043 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:19
2022-08-23T19:10:03,043 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [18] in the listener
2022-08-23T19:10:03,044 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:03,044 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [18] in the listener
2022-08-23T19:10:03,044 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [19] in the listener
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:20
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:21
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:22
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:23
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:20
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:21
2022-08-23T19:10:04,045 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:22
2022-08-23T19:10:04,046 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:23
2022-08-23T19:10:04,046 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:04,046 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [20] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [21] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [22] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [23] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [20] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [21] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [22] in the listener
2022-08-23T19:10:04,047 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [23] in the listener
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:24
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:25
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:26
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:24
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:25
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:26
2022-08-23T19:10:05,048 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:05,049 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [24] in the listener
2022-08-23T19:10:05,049 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [25] in the listener
2022-08-23T19:10:05,049 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [26] in the listener
2022-08-23T19:10:05,049 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [24] in the listener
2022-08-23T19:10:05,049 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [25] in the listener
2022-08-23T19:10:05,050 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [26] in the listener
2022-08-23T19:10:05,659 - INFO -
[pulsar-load-manager-163-1:ModularLoadManagerImpl@466] - Writing local data to
metadata store because maximum change 55.46875% exceeded threshold 10%; time
since last report written is 5.02 seconds. ResourceUsage:[cpu: 11.06%, memory:
55.47%, directMemory: 9.38%, bandwidthIn: 0.00%, bandwidthOut: 0.00%]
2022-08-23T19:10:05,661 - INFO -
[metadata-store-171-1:ResourceLockImpl@165] - Acquired resource lock on
/loadbalance/brokers/localhost:52221
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:27
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:28
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:29
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@162]
- ============ before dispatch
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:27
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:28
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@164]
- dispatch message to consumer ledger:3, entry:29
2022-08-23T19:10:06,053 - INFO -
[broker-topic-workers-OrderedExecutor-7-0:PersistentDispatcherSingleActiveConsumer@166]
- ============ after dispatch
2022-08-23T19:10:06,056 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [27] in the listener
2022-08-23T19:10:06,056 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [28] in the listener
2022-08-23T19:10:06,056 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [29] in the listener
2022-08-23T19:10:06,056 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [27] in the listener
2022-08-23T19:10:06,056 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [28] in the listener
2022-08-23T19:10:06,056 - INFO -
[pulsar-external-listener-197-1:SubscriptionMessageDispatchThrottlingTest@346]
- Received message [29] in the listener
java.lang.AssertionError:
Expected :30.0
Actual :41.0
<Click to see difference>
at org.testng.Assert.fail(Assert.java:99)
at org.testng.Assert.failNotEquals(Assert.java:1037)
at org.testng.Assert.assertEquals(Assert.java:744)
at org.testng.Assert.assertEquals(Assert.java:757)
at
org.apache.pulsar.client.api.SubscriptionMessageDispatchThrottlingTest.testDispatchRate(SubscriptionMessageDispatchThrottlingTest.java:390)
at
org.apache.pulsar.client.api.SubscriptionMessageDispatchThrottlingTest.testMultiLevelDispatch(SubscriptionMessageDispatchThrottlingTest.java:420)
at
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:599)
at
org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at
org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822)
at
org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147)
at
org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at org.testng.TestRunner.privateRun(TestRunner.java:764)
at org.testng.TestRunner.run(TestRunner.java:585)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.runSuites(TestNG.java:1069)
at org.testng.TestNG.run(TestNG.java:1037)
at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
at
com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:109)
```
### Modifications
- Add `synchronized` keyword and `havePendingRead` state to avoid read same
position many times.
### Verifying this change
- [x] Make sure that the change passes the CI checks.
### Documentation
Check the box below or label this PR directly.
Need to update docs?
- [ ] `doc-required`
(Your PR needs to update docs and you will update later)
- [x] `doc-not-needed`
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- [ ] `doc`
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- [ ] `doc-complete`
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