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changes.mady.by.user Jesús Camacho Rodríguez

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Comment: HIVE-19385 hive.orc.cache.use.soft.references

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Cache size for keeping meta information about ORC splits cached in the client.

hive.orc.cache.use.soft.references
  • Default Value: false
  • Added In: Hive 0.13.0, Hive 2.1.1, Hive 2.2.0 with HIVE-19385

By default, the cache that ORC input format uses to store orc file footer use hard references for the cached object.
Setting this to true can help avoid out of memory issues under memory pressure (in some cases) at the cost of slight unpredictability in
overall query performance.

hive.orc.compute.splits.num.threads

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