[CI] MlHiddenIndicesFullClusterRestartIT class failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #9262 / 7.4.2_bwc
• elasticsearch-periodic #9262 / 7.2.1_bwc
• elasticsearch-periodic #9262 / 7.7.1_bwc
• elasticsearch-periodic #9262 / 7.6.2_bwc
• elasticsearch-periodic #9262 / 7.5.2_bwc
• elasticsearch-periodic #9262 / 7.0.1_bwc
• elasticsearch-periodic #9255 / 7.1.1_bwc
• elasticsearch-periodic #9255 / 7.11.2_bwc
• elasticsearch-periodic #9255 / 7.0.1_bwc
• elasticsearch-periodic #9255 / 7.10.2_bwc

Reproduction Line:

undefined

Applicable branches:
8.19

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

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Issue Reasons:

• [8.19] 4 consecutive failures in class org.elasticsearch.xpack.restart.MlHiddenIndicesFullClusterRestartIT
• [8.19] 8 consecutive failures in step 7.4.2_bwc
• [8.19] 8 consecutive failures in step 7.2.1_bwc
• [8.19] 8 consecutive failures in step 7.7.1_bwc
• [8.19] 8 consecutive failures in step 7.6.2_bwc
• [8.19] 8 consecutive failures in step 7.5.2_bwc
• [8.19] 8 consecutive failures in step 7.0.1_bwc
• [8.19] 7 consecutive failures in step 7.1.1_bwc
• [8.19] 7 consecutive failures in step 7.11.2_bwc
• [8.19] 7 consecutive failures in step 7.10.2_bwc
• [8.19] 7 consecutive failures in step 7.3.2_bwc
• [8.19] 7 consecutive failures in step 7.8.1_bwc
• [8.19] 7 consecutive failures in step 7.9.3_bwc
• [8.19] 90 failures in class org.elasticsearch.xpack.restart.MlHiddenIndicesFullClusterRestartIT (13.8% fail rate in 652 executions)
• [8.19] 8 failures in step 7.4.2_bwc (100.0% fail rate in 8 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-delivery (Team:Delivery)