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https://issues.apache.org/jira/browse/HDFS-16511?focusedWorklogId=747658&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-747658
]
ASF GitHub Bot logged work on HDFS-16511:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Mar/22 08:18
Start Date: 25/Mar/22 08:18
Worklog Time Spent: 10m
Work Description: tomscut commented on a change in pull request #4085:
URL: https://github.com/apache/hadoop/pull/4085#discussion_r835043287
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsDatasetImpl.java
##########
@@ -602,6 +605,54 @@ public void run() {}
+ "volumeMap.", 0, totalNumReplicas);
}
+ @Test(timeout = 30000)
+ public void testCurrentWriteAndDeleteBlock() throws Exception {
+ // Feed FsDataset with block metadata.
+ final int numBlocks = 1000;
+ final int threadCount = 10;
+ // Generate data blocks.
+ ExecutorService pool = Executors.newFixedThreadPool(threadCount);
+ List<Future<?>> futureList = new ArrayList<>();
+ for (int i = 0; i < threadCount; i++) {
+ Thread thread = new Thread() {
+ @Override
+ public void run() {
+ try {
+ for (int i = 0; i < numBlocks; i++) {
+ String bpid = BLOCK_POOL_IDS[numBlocks % BLOCK_POOL_IDS.length];
Review comment:
> Yes, this means random write to a block pool.like
testRemoveTwoVolumes().
But the bpid here always looks like "bpid-0", right?
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Issue Time Tracking
-------------------
Worklog Id: (was: 747658)
Time Spent: 1h (was: 50m)
> Change some frequent method lock type in ReplicaMap.
> ----------------------------------------------------
>
> Key: HDFS-16511
> URL: https://issues.apache.org/jira/browse/HDFS-16511
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Mingxiang Li
> Assignee: Mingxiang Li
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> In HDFS-16429 we make LightWeightResizableGSet to be thread safe, and In
> HDFS-15382 we have split lock to block pool grain locks.After these
> improvement, we can change some method to acquire read lock replace to
> acquire write lock.
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