From 6efe404bd6d674e26ba564d615cfb4cdefa1570c Mon Sep 17 00:00:00 2001
From: Tor-Einar Skog <tor-einar.skog@nibio.no>
Date: Tue, 5 Jan 2021 20:38:06 +0100
Subject: [PATCH] Removing the flush() method. It appears to not prevent
transaction timeouts. Also documenting how to extend transaction timeouts in
Wildfly
---
docs/troubleshooting.md | 27 +++++++++++++++++++
.../controller/session/ForecastBean.java | 3 ++-
2 files changed, 29 insertions(+), 1 deletion(-)
create mode 100644 docs/troubleshooting.md
diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md
new file mode 100644
index 00000000..59e66437
--- /dev/null
+++ b/docs/troubleshooting.md
@@ -0,0 +1,27 @@
+#Troubleshooting
+
+##Transaction timeouts
+If you get weird errors when running jobs, e.g. like this:
+
+```
+2021-01-05 18:34:48,916 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::chec
+k timeout for TX 0:ffff8027c039:65d436c5:5ff4a101:6f in state RUN
+2021-01-05 18:34:48,925 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 0) ARJUNA012095: Abort of actio
+n id 0:ffff8027c039:65d436c5:5ff4a101:6f invoked while multiple threads active within it.
+[...]
+```
+
+...this may be because the JEE application server has a transaction timeout. In WildFly (at least in Wildfly 16), the default timeout is 300 seconds. This can be adjusted, e.g. in standalone.xml. In the transaction subsystem add the `default-timeout="900"` attribute inside the `<coordinator-environment>` element below. 900 seconds equals 15 minutes.
+
+```xml
+<subsystem xmlns="urn:jboss:domain:transactions:5.0">
+ <core-environment node-identifier="${jboss.tx.node.id:1}">
+ <process-id>
+ <uuid/>
+ </process-id>
+ </core-environment>
+ <recovery-environment socket-binding="txn-recovery-environment" status-socket-binding="txn-status-manager"/>
+ <coordinator-environment default-timeout="1000" statistics-enabled="${wildfly.transactions.statistics-enabled:${wildfly.statistics-enabled:false}}"/>
+ <object-store path="tx-object-store" relative-to="jboss.server.data.dir"/>
+ </subsystem>
+```
\ No newline at end of file
diff --git a/src/main/java/no/nibio/vips/logic/controller/session/ForecastBean.java b/src/main/java/no/nibio/vips/logic/controller/session/ForecastBean.java
index c7cb8912..84f69950 100755
--- a/src/main/java/no/nibio/vips/logic/controller/session/ForecastBean.java
+++ b/src/main/java/no/nibio/vips/logic/controller/session/ForecastBean.java
@@ -50,6 +50,7 @@ import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
+import javax.transaction.Transactional;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
@@ -956,7 +957,7 @@ public class ForecastBean {
}
}
- em.flush();
+ //em.flush();
}
if(activeForecastIds != null && ! activeForecastIds.isEmpty())
--
GitLab