Jenkins - previous build artifacts are lost

Question

So, what I'm doing:

Build n:

1. Cleaning a MODULE_NAME/test-output/* in workspace explicitly with ant

2. Running build and tests, getting some artifacts into folder from step one

3. Jenkins runs archive artifacts step for MODULE_NAME/test-output/*

4. Now artifacts are stored in build n - works for me.

Now build n+1 launching:

1. Cleaning a MODULE_NAME/test-output/* in workspace explicitly with ant

2. Checking artifacts from build n - they're still there, as expected.

3. Running build and tests, getting some artifacts into workspace folder from step one...

4. Jenkins runs archive artifacts step for MODULE_NAME/test-output/*

5. Now artifacts are stored in build n+1 - works for me, if not the next.

The problems is that, for some reason, artifacts from build n are lost.

My post-build actions:

How do I keep unique artifacts for each build?

Answer 1

Actually, the problem that bothered us for so long was in here:

Not sure if I recall this in older versions of jenkins.

I'm so confused.

Answer 2

It is happening because in Max # you mentioned 1 so it'll clean artifacts after 1 build either increase that number or just uncheck "Discard Old Builds". You can write some post build script which will clear these artifacts after certain builds.