[jboss-jira] [JBoss JIRA] (WFCORE-695) OutOfMemoryErrors when adding large deployment with audit logging enabled

[James Livingston (JIRA)]

James Livingston created WFCORE-695:
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             Summary: OutOfMemoryErrors when adding large deployment with audit logging enabled
                 Key: WFCORE-695
                 URL: https://issues.jboss.org/browse/WFCORE-695
             Project: WildFly Core
          Issue Type: Bug
            Reporter: James Livingston


When performing a deployment operation, audit logging will include the deployment content in the audit record (serialised as text). Since JsonAuditLogItemFormatter.createRecordText() creates the string in memory, large deployment will lead to an OutOfMemoryError such as

java.lang.OutOfMemoryError: Java heap space
        at java.util.Arrays.copyOf(Arrays.java:2367) [rt.jar:1.7.0_71]
        at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130) [rt.jar:1.7.0_71]
        at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114) [rt.jar:1.7.0_71]
        at java.lang.AbstractStringBuilder.appendCodePoint(AbstractStringBuilder.java:730) [rt.jar:1.7.0_71]
        at java.lang.StringBuilder.appendCodePoint(StringBuilder.java:242) [rt.jar:1.7.0_71]
        at org.jboss.dmr.ModelValue.jsonEscape(ModelValue.java:212) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.BytesModelValue.formatAsJSON(BytesModelValue.java:144) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ObjectModelValue.formatAsJSON(ObjectModelValue.java:247) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ListModelValue.formatAsJSON(ListModelValue.java:251) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ObjectModelValue.formatAsJSON(ObjectModelValue.java:247) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ListModelValue.formatAsJSON(ListModelValue.java:251) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ObjectModelValue.formatAsJSON(ObjectModelValue.java:247) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ListModelValue.formatAsJSON(ListModelValue.java:251) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.formatAsJSON(ModelNode.java:1520) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ObjectModelValue.formatAsJSON(ObjectModelValue.java:247) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelValue.writeJSONString(ModelValue.java:351) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelValue.toJSONString(ModelValue.java:340) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.dmr.ModelNode.toJSONString(ModelNode.java:1350) [jboss-dmr-1.2.0.Final-redhat-1.jar:1.2.0.Final-redhat-1]
        at org.jboss.as.controller.audit.JsonAuditLogItemFormatter.createRecordText(JsonAuditLogItemFormatter.java:135) [jboss-as-controller-7.4.2.Final-redhat-2.jar:7.4.2.Final-redhat-2]


A work-around is increasing the controller heap size, but it would be good if that was not required. If including the deployment content in the record is desired, perhaps there is a way to make it stream the record rather than building the entire string in memory at once.



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