44
이 문제를 디버깅하는 데 정말 어려움을 겪고 있습니다. 포스트 그레스와 연결을 시도 할 때마다 1 분 정도 걸립니다. 연결이 설정되면 모든 것이 정상입니다. 모든 매핑을 비활성화하고 아무 것도로드하지 않으려 고 시도했지만 여전히 연결에는 시간이 오래 걸립니다. 또한 유효성 검사를 비활성화 해 보았습니다. 간단한 JDBC 연결을 사용하면 즉각적입니다. 최대 절전 모드는 상당한 시간이 소요되는 무언가를하고 있습니다. 어떤 입력이라도 대단히 감사합니다!최대 절전 모드 Postgres 연결 속도가 느려집니다.
포스트 그레스 드라이버 :
postgresql-9.1-901.jdbc4.jar
구성 설정 : 코드
<hibernate-configuration>
<session-factory>
<!-- properties -->
<property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://xxxx.com:5432/xxxxx</property>
<property name="connection.username">xxxxxxx</property>
<property name="connection.password">xxxxxxx</property>
</session-factory>
</hibernate-configuration>
추가 설정 :
을 : 여기config.setProperty("hibernate.hbm2ddl.auto", hbm2ddlMode);
//config.setProperty("hibernate.cache.use_query_cache", "true");
config.setProperty("hibernate.cache.use_second_level_cache", "true");
//config.setProperty("hibernate.cache.region.factory_class", "net.sf.ehcache.hibernate.EhCacheRegionFactory");
config.setProperty("hibernate.cache.provider_class", "org.hibernate.cache.EhCacheProvider");
//config.setProperty("hibernate.cache.provider_class", "org.hibernate.cache.NoCacheProvider");
config.setProperty("hibernate.jdbc.fetch_size", "100");
config.setProperty("hibernate.jdbc.batch_size", "30");
config.setProperty("hibernate.jdbc.use_scrollable_resultset", "true");
config.setProperty("hibernate.connection.provider_class", "org.hibernate.connection.C3P0ConnectionProvider");
config.setProperty("hibernate.c3p0.acquire_increment", "1");
config.setProperty("hibernate.c3p0.idle_test_period", "0");
config.setProperty("hibernate.c3p0.min_size", "1");
config.setProperty("hibernate.c3p0.max_size", "2");
config.setProperty("hibernate.c3p0.timeout", "0");
config.setProperty("javax.persistence.validation.mode", "none");
[main] 2012-04-09 10:40:32,823 110391 INFO C3P0ConnectionProvider - HHH000046:
Connection properties: {user=hgaidb_test, password=****}
[main] 2012-04-09 10:40:32,823 110391 INFO C3P0ConnectionProvider - HHH000006:
Autocommit mode: false
[main] 2012-04-09 10:40:34,100 111668 DEBUG JdbcServicesImpl - Database ->
name : PostgreSQL
version : 8.3.3
major : 8
minor : 3
[main] 2012-04-09 10:40:34,101 111669 DEBUG JdbcServicesImpl - Driver ->
name : PostgreSQL Native Driver
version : PostgreSQL 9.1 JDBC4 (build 901)
major : 9
minor : 1
*******************************************************************************
// 1 MINUTE DELAY
*******************************************************************************
[main] 2012-04-09 10:40:34,102 111670 DEBUG JdbcServicesImpl - JDBC version : 4.
0
[main] 2012-04-09 10:41:21,632 159200 INFO Dialect - HHH000400: Using dialect:
org.hibernate.dialect.PostgreSQLDialect
*******************************************************************************
[main] 2012-04-09 10:41:21,669 159237 INFO LobCreatorBuilder - HHH000424: Disab
ling contextual LOB creation as createClob() method threw error : java.lang.refl
ect.InvocationTargetException
[main] 2012-04-09 10:41:21,814 159382 DEBUG SettingsFactory - Automatic flush du
ring beforeCompletion(): disabled
[main] 2012-04-09 10:41:21,814 159382 DEBUG SettingsFactory - Automatic session
close at end of transaction: disabled
[main] 2012-04-09 10:41:21,815 159383 DEBUG SettingsFactory - JDBC batch size: 3
0
[main] 2012-04-09 10:41:21,816 159384 DEBUG SettingsFactory - JDBC batch updates
for versioned data: disabled
[main] 2012-04-09 10:41:21,816 159384 DEBUG SettingsFactory - Scrollable result
sets: enabled
[main] 2012-04-09 10:41:21,817 159385 DEBUG SettingsFactory - Wrap result sets:
disabled
[main] 2012-04-09 10:41:21,818 159386 DEBUG SettingsFactory - JDBC3 getGenerated
Keys(): enabled
[main] 2012-04-09 10:41:21,818 159386 DEBUG SettingsFactory - JDBC result set fe
tch size: 100
[main] 2012-04-09 10:41:21,819 159387 DEBUG SettingsFactory - Connection release
mode: auto
[main] 2012-04-09 10:41:21,819 159387 INFO TransactionFactoryInitiator - HHH000
399: Using default transaction strategy (direct JDBC transactions)
[main] 2012-04-09 10:41:21,844 159412 DEBUG SettingsFactory - Default batch fetc
h size: 1
[main] 2012-04-09 10:41:21,844 159412 DEBUG SettingsFactory - Generate SQL with
comments: disabled
[main] 2012-04-09 10:41:21,845 159413 DEBUG SettingsFactory - Order SQL updates
by primary key: disabled
[main] 2012-04-09 10:41:21,846 159414 DEBUG SettingsFactory - Order SQL inserts
for batching: disabled
[main] 2012-04-09 10:41:21,846 159414 DEBUG SettingsFactory - Query translator:
org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory
[main] 2012-04-09 10:41:21,867 159435 INFO ASTQueryTranslatorFactory - HHH00039
7: Using ASTQueryTranslatorFactory
[main] 2012-04-09 10:41:21,867 159435 DEBUG SettingsFactory - Query language sub
stitutions: {}
[main] 2012-04-09 10:41:21,867 159435 DEBUG SettingsFactory - JPA-QL strict comp
liance: disabled
[main] 2012-04-09 10:41:21,868 159436 DEBUG SettingsFactory - Second-level cache
: enabled
[main] 2012-04-09 10:41:21,868 159436 DEBUG SettingsFactory - Query cache: disab
led
[main] 2012-04-09 10:41:21,869 159437 DEBUG SettingsFactory - Cache region facto
ry : org.hibernate.cache.internal.NoCachingRegionFactory
[main] 2012-04-09 10:41:21,872 159440 DEBUG SettingsFactory - org.hibernate.cach
e.internal.NoCachingRegionFactory did not provide constructor accepting java.uti
l.Properties; attempting no-arg constructor.
[main] 2012-04-09 10:41:21,873 159441 DEBUG SettingsFactory - Optimize cache for
minimal puts: disabled
[main] 2012-04-09 10:41:21,873 159441 DEBUG SettingsFactory - Structured second-
level cache entries: disabled
[main] 2012-04-09 10:41:21,873 159441 DEBUG SettingsFactory - Statistics: disabl
ed
[main] 2012-04-09 10:41:21,874 159442 DEBUG SettingsFactory - Deleted entity syn
thetic identifier rollback: disabled
[main] 2012-04-09 10:41:21,874 159442 DEBUG SettingsFactory - Default entity-mod
e: pojo
[main] 2012-04-09 10:41:21,875 159443 DEBUG SettingsFactory - Named query checki
ng : enabled
[main] 2012-04-09 10:41:21,875 159443 DEBUG SettingsFactory - Check Nullability
in Core (should be disabled when Bean Validation is on): enabled
[main] 2012-04-09 10:41:21,876 159444 DEBUG SettingsFactory - multi-tenancy stra
tegy : NONE
: 9,753,210
다음은 로그 결과입니다. 내 수업 경로에 모든 소스가 없지만 변수를 볼 수 있습니다. Hibernate가 pg_catalog.pg_type 테이블을 쿼리, 즉 일분 대기 Durring : 여기
[SELECT typname FROM pg_catalog.pg_type WHERE oid = , ]
하는 스크린 샷입니다 :
이
이러한 지연은 DNS 문제로 인해 발생할 수 있습니다.이를 제거하기 위해'connection.url'에서 도메인 이름 대신 IP 주소를 사용하십시오. – axtavt
IP로 시도했지만 획득 시간에는 차이가 없습니다. –
참고 : http://stackoverflow.com/questions/23969399/persistence-createentitymanagerfactory-takes-very-long-time-to-return – Dojo