SRM: Importegenskapsoppgaven har følgende feil: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Feil på kommunikasjonsforbindelse
Summary: socketTimeout kan økes hvis import-porperties oppgaven fortsetter å mislykkes på socket tidsavbrudd på grunn av tungt lastede apg databaser.
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Symptoms
Oppgaven importegenskaper har følgende feil ved tilkobling til apg-databaser:
160627 07:07:57 : com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 160627 07:07:57 : 160627 07:07:57 : The last packet successfully received from the server was 180,025 milliseconds ago. The last packet sent successfully to the server was 180,025 milliseconds ago.
Årsaken til unntaket er:
aused av: java.net.SocketTimeoutException: Read timed out
Cause
socketTimeout brukes i oppgaven importegenskaper til å vente på henting av data fra data_property-tabellen. Hvis denne tiden overskrides på grunn av en tungt lastet database på det tidspunktet, vil oppgaven mislykkes.
Resolution
Vi kan øke socketTimeout-innstillingen i APG/Web-Servers/Tomcat/Default/conf/server.xml-filen til f.eks. 5 minutter (300000 millisekunder) i henhold til nedenfor:
<!-- Defines the connection to the APG timeseries database for MySQL. --> <Resource name="jdbc/APG-DB" auth="Container" type="javax.sql.DataSource" maxActive="20" maxIdle="20" validationQuery="SELECT 1" testOnBorrow="false" testWhileIdle="true" validationQueryTimeout="5" timeBetweenEvictionRunsMillis="10000" minEvictableIdleTimeMillis="60000" maxWait="30000" username="apg" password="watch4net" driverClassName="com.mysql.jdbc.Driver" removeAbandoned="true" removeAbandonedTimeout="60" logAbandoned="true" url="jdbc:mysql://<db hostname>:53306/apg?autoReconnect=true&socketTimeout=300000"/>
Affected Products
SRMArticle Properties
Article Number: 000059197
Article Type: Solution
Last Modified: 29 Jul 2025
Version: 4
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