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通过ES索引别名获取mapping，返回数据为真实索引，而不是别名，导致mappings.get(index).get(type)报空指针异常 #4122

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May 13, 2022
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通过ES索引别名获取mapping，返回数据为真实索引，而不是别名，导致mappings.get(index).get(type)报空指针异常 #4122

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8 changes: 7 additions & 1 deletion .../es6x/src/main/java/com/alibaba/otter/canal/client/adapter/es6x/support/ESConnection.java
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Original file line number Diff line number Diff line change
Expand Up @@ -150,7 +150,13 @@ public MappingMetaData getMapping(String index, String type) {
logger.error(e.getMessage(), e);
return null;
}
mappingMetaData = mappings.get(index).get(type);

//通过别名查询mapping返回的是真实索引名称，mappings.get(index)返回null，为兼容别名情况修改如下：
ImmutableOpenMap<String, MappingMetaData> esIndex = mappings.get(index);
if(esIndex == null){
esIndex = mappings.valuesIt().next();
}
mappingMetaData = esIndex.get(type);
}
return mappingMetaData;
}
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