34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
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[[ml-troubleshooting]]
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== {xpackml} Troubleshooting
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Use the information in this section to troubleshoot common problems and find
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answers for frequently asked questions.
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To get help, see <<xpack-help>>.
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[float]
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[[ml-rollingupgrade]]
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=== Machine learning features unavailable after rolling upgrade
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This problem occurs after you upgrade all of the nodes in your cluster to
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{version} by using rolling upgrades. When you try to use {xpackml} features for
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the first time, all attempts fail, though `GET _xpack` and `GET _xpack/usage`
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indicate that {xpack} is enabled.
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*Symptoms:*
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* Errors when you click *Machine Learning* in {kib}.
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For example: `Jobs list could not be created` and `An internal server error occurred`.
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* Null pointer and remote transport exceptions when you run {ml} APIs such as
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`GET _xpack/ml/anomaly_detectors` and `GET _xpack/ml/datafeeds`.
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* Errors in the log files on the master nodes.
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For example: `unable to install ml metadata upon startup`
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*Resolution:*
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After you upgrade all master-eligible nodes to {es} {version} and {xpack}
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{version}, restart the current master node, which triggers the {xpackml}
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features to re-initialize.
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For more information, see {ref}/rolling-upgrades.html[Rolling upgrades].
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