Quanlong Huang created IMPALA-13071:
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Summary: Update the doc of Impala components
Key: IMPALA-13071
URL: https://issues.apache.org/jira/browse/IMPALA-13071
Project: IMPALA
Issue Type: Documentation
Reporter: Quanlong Huang
We need to update some discription in the doc of Impala components.
[https://impala.apache.org/docs/build/asf-site-html/topics/impala_components.html]
In the section ofThe Impala Catalog Service, this is stale:
{quote}When you create a table, load data, and so on through Hive, you do need
to issue REFRESH or INVALIDATE METADATA on an Impala daemon before executing a
query there.
{quote}
We should mention "Automatic Invalidation/Refresh of Metadata", a.k.a. HMS
event processor, and add links for it.
Change "Impala daemons" to "Impala Coordinators" in this sentence:
{quote}The Impala component known as the Catalog Service relays the metadata
changes from Impala SQL statements to all the Impala
{color:#de350b}daemons{color} in a cluster.
{quote}
Also add this link for "On-demand Metadata"
[https://impala.apache.org/docs/build/asf-site-html/topics/impala_metadata.html]
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