Hi, all,
I am attempting write a trigger that depends on a native library. The library
is successfully loaded by the JVM (so the java.library.path should not be the
issue - I just have the jnilib in lib/sigar-bin for now) but any call to its
methods result in a java.lang.UnsatisfiedLinkError. This only happens in the
Cassandra trigger; a standalone Java program has no issues using the library.
Does anybody have an idea what may be causing this? Here is the output when the
trigger fires:
cqlsh> INSERT INTO test.test (key, value) values ('1', '1');
ServerError: <ErrorMessage code=0000 [Server error]
message="java.lang.UnsatisfiedLinkError:
org.apache.cassandra.triggers.AuditTrigger.callSomeNativeMethod()Ljava/lang/String;">
And the debug.log:
ERROR [SharedPool-Worker-1] 2016-06-07 10:03:42,870 Message.java:611 -
Unexpected exception during request; channel = [id: 0x3a5b79c3,
L:/127.0.0.1:9042 - R:/127.0.0.1:53097]
java.lang.UnsatisfiedLinkError:
org.apache.cassandra.triggers.AuditTrigger.callSomeNativeMethod()Ljava/lang/String;
at
org.apache.cassandra.triggers.AuditTrigger.callSomeNativeMethod(Native Method)
~[na:na]
at
org.apache.cassandra.triggers.AuditTrigger.augment(AuditTrigger.java:44)
~[na:na]
at
org.apache.cassandra.triggers.TriggerExecutor.executeInternal(TriggerExecutor.java:229)
~[main/:na]
at
org.apache.cassandra.triggers.TriggerExecutor.execute(TriggerExecutor.java:119)
~[main/:na]
at
org.apache.cassandra.service.StorageProxy.mutateWithTriggers(StorageProxy.java:819)
~[main/:na]
at
org.apache.cassandra.cql3.statements.ModificationStatement.executeWithoutCondition(ModificationStatement.java:431)
~[main/:na]
at
org.apache.cassandra.cql3.statements.ModificationStatement.execute(ModificationStatement.java:417)
~[main/:na]
at
org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:188)
~[main/:na]
at
org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:219)
~[main/:na]
at
org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:204)
~[main/:na]
at
org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:115)
~[main/:na]
at
org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:507)
[main/:na]
at
org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:401)
[main/:na]
at
io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
[netty-all-4.0.36.Final.jar:4.0.36.Final]
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:292)
[netty-all-4.0.36.Final.jar:4.0.36.Final]
at
io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:32)
[netty-all-4.0.36.Final.jar:4.0.36.Final]
at
io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:283)
[netty-all-4.0.36.Final.jar:4.0.36.Final]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[na:1.8.0_25]
at
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
[main/:na]
at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:106)
[main/:na]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_25]
I am just running one, local node.
Thanks,
Brian
