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HDFS-14610. HashMap is not thread safe. Field storageMap is typically synchronized by storageMap. However, in one place, field storageMap is not protected with synchronized. (#1015)

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paulward24 2019-07-01 13:54:49 -07:00 committed by Anu Engineer
parent db674a0b14
commit d8bac50e12
1 changed files with 5 additions and 2 deletions
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7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java
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@ -451,8 +451,11 @@ public class DatanodeDescriptor extends DatanodeInfo {
this.volumeFailureSummary = volumeFailureSummary; this.volumeFailureSummary = volumeFailureSummary;
for (StorageReport report : reports) { for (StorageReport report : reports) {
DatanodeStorageInfo storage = DatanodeStorageInfo storage = null;
storageMap.get(report.getStorage().getStorageID()); synchronized (storageMap) {
storage =
storageMap.get(report.getStorage().getStorageID());
}
if (checkFailedStorages) { if (checkFailedStorages) {
failedStorageInfos.remove(storage); failedStorageInfos.remove(storage);
} }