cxzl25 opened a new pull request, #3309:
URL: https://github.com/apache/celeborn/pull/3309
### What changes were proposed in this pull request?
### Why are the changes needed?
Spark4 uses scala 2.13, but it cannot be connected to the celeborn master
compiled with scala 2.12.
For example, the first node of `celeborn.master.endpoints` configured by
client is not a leader, and RpcFailure will be returned at this time.
```java
java.io.InvalidClassException:
org.apache.celeborn.common.rpc.netty.RpcFailure; local class incompatible:
stream classdesc serialVersionUID = 2793139166962436434, local class
serialVersionUID = -1724324816907181707
at
java.base/java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:598)
~[?:?]
```
```bash
scala -cp /tmp/celeborn-client-spark-3-shaded_2.12-0.5.4.jar
```
```scala
:paste -raw
package org.apache.celeborn {
class Y {
def printId = {
val clazz =
classOf[org.apache.celeborn.common.rpc.netty.RpcFailure]
val uid =
java.io.ObjectStreamClass.lookup(clazz).getSerialVersionUID
println(s"Scala version:
${scala.util.Properties.versionNumberString}")
println(s"serialVersionUID: $uid")
}
}
}
new org.apache.celeborn.Y().printId
```
2.11
```
Scala version: 2.11.12
serialVersionUID: 2793139166962436434
```
2.12
```
Scala version: 2.12.19
serialVersionUID: 2793139166962436434
```
2.13
```
Scala version: 2.13.16
serialVersionUID: -1724324816907181707
```
### Does this PR introduce _any_ user-facing change?
If we use 2.13 compiled master, it may be incompatible.
### How was this patch tested?
local test
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