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Posted to common-commits@hadoop.apache.org by aa...@apache.org on 2021/10/18 10:58:37 UTC
[hadoop] branch branch-2.10 updated: HDFS-16257. Set
initialCapacity for guava cache to solve performance issue (#3524)
This is an automated email from the ASF dual-hosted git repository.
aajisaka pushed a commit to branch branch-2.10
in repository https://gitbox.apache.org/repos/asf/hadoop.git
The following commit(s) were added to refs/heads/branch-2.10 by this push:
new b7bb43f HDFS-16257. Set initialCapacity for guava cache to solve performance issue (#3524)
b7bb43f is described below
commit b7bb43f6db8120a35a9aecd5b385302efdda2444
Author: Symious <yi...@foxmail.com>
AuthorDate: Mon Oct 18 18:58:00 2021 +0800
HDFS-16257. Set initialCapacity for guava cache to solve performance issue (#3524)
* HDFS-16257. Set initialCapacity for guava cache to solve performance issue
* HDFS-16257. Add comments
Co-authored-by: Symious <yi...@gmail.com>
---
.../hadoop/hdfs/server/federation/resolver/MountTableResolver.java | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
index bdd75c7..aaa0520 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MountTableResolver.java
@@ -138,6 +138,9 @@ public class MountTableResolver
FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE,
FEDERATION_MOUNT_TABLE_MAX_CACHE_SIZE_DEFAULT);
this.locationCache = CacheBuilder.newBuilder()
+ // To workaround guava bug https://github.com/google/guava/issues/1055
+ // Fixed since guava 13.0
+ .initialCapacity(maxCacheSize)
.maximumSize(maxCacheSize)
.build();
} else {
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