[jira] [Created] (HIVE-25730) Hive column update performance too low when table partition over 700
JungHyun An created HIVE-25730: -- Summary: Hive column update performance too low when table partition over 700 Key: HIVE-25730 URL: https://issues.apache.org/jira/browse/HIVE-25730 Project: Hive Issue Type: Bug Components: Metastore Affects Versions: 3.1.1 Reporter: JungHyun An Fix For: 3.1.1 Hi, we using hive 3.1.1 Currently in our hive have tables with hundreds of partitions and hundreds of gigabytes of data. When updating the column information of the corresponding table, it was confirmed that the performance was several tens of times slower than the Hive 1.1 version of the older CDH. I would like to ask if there is any architectural change that makes column updates slower than Hive 1 in Hive 3 and later versions. Thank you. -- This message was sent by Atlassian Jira (v8.20.1#820001)
[jira] [Created] (HIVE-25729) ThriftUnionObjectInspector should be notified when fully inited
Zhihua Deng created HIVE-25729:
--
Summary: ThriftUnionObjectInspector should be notified when fully
inited
Key: HIVE-25729
URL: https://issues.apache.org/jira/browse/HIVE-25729
Project: Hive
Issue Type: Bug
Components: Serializers/Deserializers
Reporter: Zhihua Deng
For thread safe purpose, a ReflectionStructObjectInspector instance would wait
for 3 seconds to ensure the returning ObjectInspector is fully inited,
{code:java}
synchronized (soi) {
while (!soi.isFullyInited(checkedTypes)) {
//
soi.wait(3000);
}
} {code}
It seems that we are missing to notify ThriftUnionObjectInspector when it has
been inited.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
