zhangsong created KUDU-2010:
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Summary: java kudu client get wrong column info from kudu-master
Key: KUDU-2010
URL: https://issues.apache.org/jira/browse/KUDU-2010
Project: Kudu
Issue Type: Bug
Components: client, master
Reporter: zhangsong
Priority: Minor
when issuing "alter table " command to rename a kudu table from impala-shell,
impala throw a exception "operation timeout"
sql is like "alter table xx rename coupontype_new coupontype int"
After that , found the column is not renamed , the column is still named
"coupontype_new " from impala. but the column has been altered to coupontype on
kudu-master ui. with version=1.
Meanwhile the table is not readable anymore due to "unknown column" exception.
Using a java-client (both 0.10.0 and 1.2) to get schema, found the column's
name is still the old one : "coupontype_new" .(which is strange, on kudu-master
ui' the column's name has been changed to new name "coupontype")
after altering kudu-table's column name back to old one using java
kudu-client , the issue is solved temporarily.
So the problem is that java kudu-client 's "getSchema" api return different
schema infos compared with those shown on kudu-master ui.
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