[CI] PreallocateTests testPreallocateNonExistingFile failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #3703 / encryption-at-rest
• elasticsearch-periodic #3699 / encryption-at-rest
• elasticsearch-periodic #3695 / encryption-at-rest
• elasticsearch-periodic #3691 / encryption-at-rest
• elasticsearch-periodic #3686 / encryption-at-rest
• elasticsearch-periodic #3682 / encryption-at-rest

Reproduction Line:

./gradlew ":libs:elasticsearch-native:test" --tests "org.elasticsearch.nativeaccess.PreallocateTests.testPreallocateNonExistingFile" -Dtests.seed=FB3FF84515445BCD -Dtests.locale=sr-Latn-RS -Dtests.timezone=Asia/Katmandu -Druntime.java=22

Applicable branches: main

Reproduces locally?: N/A

Failure History: See dashboard&_a=(controlGroupInput:(chainingSystem:HIERARCHICAL,controlStyle:twoLine,ignoreParentSettings:(ignoreFilters:!f,ignoreQuery:!f,ignoreTimerange:!f,ignoreValidations:!t),panels:('0c0c9cb8-ccd2-45c6-9b13-96bac4abc542':(explicitInput:(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,enhancements:(),fieldName:task.keyword,grow:!t,id:'0c0c9cb8-ccd2-45c6-9b13-96bac4abc542',searchTechnique:wildcard,selectedOptions:!(),singleSelect:!t,title:'Gradle%20Task',width:medium),grow:!t,order:0,type:optionsListControl,width:small),'144933da-5c1b-4257-a969-7f43455a7901':(explicitInput:(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,enhancements:(),fieldName:name.keyword,grow:!t,id:'144933da-5c1b-4257-a969-7f43455a7901',searchTechnique:wildcard,selectedOptions:!('testPreallocateNonExistingFile'),title:Test,width:medium),grow:!t,order:2,type:optionsListControl,width:medium),'4e6ad9d6-6fdc-4fcc-bf1a-aa6ca79e0850':(explicitInput:(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,enhancements:(),fieldName:className.keyword,grow:!t,id:'4e6ad9d6-6fdc-4fcc-bf1a-aa6ca79e0850',searchTechnique:wildcard,selectedOptions:!('org.elasticsearch.nativeaccess.PreallocateTests'),title:Suite,width:medium),grow:!t,order:1,type:optionsListControl,width:medium)))))

Failure Message:

java.lang.AssertionError: 
Expected: <1048576L>
     but: was <0L>

Issue Reasons:

• [main] 6 consecutive failures in step encryption-at-rest
• [main] 6 failures in test testPreallocateNonExistingFile (2.2% fail rate in 273 executions)
• [main] 6 failures in step encryption-at-rest (100.0% fail rate in 6 executions)
• [main] 6 failures in pipeline elasticsearch-periodic (100.0% fail rate in 6 executions)

Note: This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

Pinging @elastic/es-core-infra (Team:Core/Infra)