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HADOOP-19015. Increase fs.s3a.connection.maximum to 500 to minimize risk of Timeout waiting for connection from pool. (#6372)

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HADOOP-19015.  Increase fs.s3a.connection.maximum to 500 to minimize the risk of Timeout waiting for connection from the pool

Contributed By: Mukund Thakur
This commit is contained in:
Mukund Thakur 2024-01-16 17:06:28 -06:00 committed by GitHub
parent d378853790
commit 7b1570e2f1
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3 changed files with 4 additions and 3 deletions
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3
hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
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@ -1530,7 +1530,7 @@
<property>
<name>fs.s3a.connection.maximum</name>
<value>200</value>
<value>500</value>
<description>Controls the maximum number of simultaneous connections to S3.
This must be bigger than the value of fs.s3a.threads.max so as to stop
threads being blocked waiting for new HTTPS connections.
@ -1538,6 +1538,7 @@
</description>
</property>
<property>
<name>fs.s3a.connection.ssl.enabled</name>
<value>true</value>

2
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java
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@ -173,7 +173,7 @@ private Constants() {
* Future releases are likely to increase this value.
* Keep in sync with the value in {@code core-default.xml}
*/
public static final int DEFAULT_MAXIMUM_CONNECTIONS = 200;
public static final int DEFAULT_MAXIMUM_CONNECTIONS = 500;
/**
* Configuration option to configure expiration time of

2
hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/performance.md
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@ -226,7 +226,7 @@ The choice is yours. Generally recovery is better, but sometimes fail-fast is mo
| Property | Default | V2 | Meaning |
|-----------------------------------------|---------|:----|-------------------------------------------------------|
| `fs.s3a.connection.maximum` | `200` | | Connection pool size |
| `fs.s3a.connection.maximum` | `500` | | Connection pool size |
| `fs.s3a.connection.keepalive` | `false` | `*` | Use TCP keepalive on open channels |
| `fs.s3a.connection.acquisition.timeout` | `60s` | `*` | Timeout for waiting for a connection from the pool. |
| `fs.s3a.connection.establish.timeout` | `30s` | | Time to establish the TCP/TLS connection |