pvary commented on code in PR #3372:
URL: https://github.com/apache/hive/pull/3372#discussion_r897738904
##########
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/PersistenceManagerProvider.java:
##########
@@ -231,21 +240,24 @@ private static PersistenceManagerFactory
initPMF(Configuration conf, boolean for
DataSourceProvider dsp =
DataSourceProviderFactory.tryGetDataSourceProviderOrNull(conf);
PersistenceManagerFactory pmf;
+ // Any preexisting datanucleus property should be passed along
+ Map<Object, Object> dsProp = new HashMap<>(prop);
+ int maxPoolSize = -1;
+
+ if (forCompactor) {
+ maxPoolSize = MetastoreConf.getIntVar(conf,
ConfVars.HIVE_COMPACTOR_CONNECTION_POOLING_MAX_CONNECTIONS);
+ dsProp.put(ConfVars.CONNECTION_POOLING_MAX_CONNECTIONS.getVarname(),
maxPoolSize);
+ }
if (dsp == null) {
- pmf = JDOHelper.getPersistenceManagerFactory(prop);
+ pmf = JDOHelper.getPersistenceManagerFactory(dsProp);
} else {
try {
- DataSource ds =
- forCompactor ? dsp.create(conf, MetastoreConf.getIntVar(conf,
ConfVars.HIVE_COMPACTOR_CONNECTION_POOLING_MAX_CONNECTIONS)) :
- dsp.create(conf);
- Map<Object, Object> dsProperties = new HashMap<>();
- //Any preexisting datanucleus property should be passed along
- dsProperties.putAll(prop);
- dsProperties.put(PropertyNames.PROPERTY_CONNECTION_FACTORY, ds);
- dsProperties.put(PropertyNames.PROPERTY_CONNECTION_FACTORY2, ds);
- dsProperties.put(ConfVars.MANAGER_FACTORY_CLASS.getVarname(),
+ DataSource ds = (maxPoolSize > 0) ? dsp.create(conf, maxPoolSize) :
dsp.create(conf);
+ dsProp.put(PropertyNames.PROPERTY_CONNECTION_FACTORY, ds);
Review Comment:
My question was aimed the change that with the original code we had a new,
copied property set instead of modifying the original property set. It might
cause issues in other places of the code. I was trying to find out if this was
intentional
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