Briefly, this error occurs when Elasticsearch cannot update the phase definition for a specific index lifecycle management (ILM) policy. This could be due to incorrect policy settings, insufficient permissions, or network issues. To resolve this, you can try the following: 1) Check and correct the ILM policy settings; 2) Ensure the user has the necessary permissions to update the ILM policy; 3) Check the network connectivity between the Elasticsearch nodes; 4) Restart the Elasticsearch cluster if necessary.
This guide will help you check for common problems that cause the log ” [{}] unable to refresh phase definition for updated policy [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, refresh.
Log Context
Log “[{}] unable to refresh phase definition for updated policy [{}]” classname is PhaseCacheManagement.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
for (IndexMetadata index : indicesThatCanBeUpdated) {
try {
refreshPhaseDefinition(mb; index; newPolicy);
refreshedIndices.add(index.getIndex().getName());
} catch (Exception e) {
logger.warn(new ParameterizedMessage("[{}] unable to refresh phase definition for updated policy [{}]";
index; newPolicy.getName()); e);
}
}
logger.debug("refreshed policy [{}] phase definition for [{}] indices"; newPolicy.getName(); refreshedIndices.size());
return refreshedIndices.size() > 0;
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