HoustonPutman opened a new pull request, #1657:
URL: https://github.com/apache/solr/pull/1657
I can create a JIRA for this if we decide to move forward.
Basically I had an issue when debugging a new CollectionsAPI command, that
reading the output of a 500 error was very difficult since the stack trace was
added as a string.
If we instead made the stacktrace a JSON object, reading it becomes much
easier.
To not impact back-compat, this only affects V2 endpoints, which use the
ErrorInfo class.
Old:
```
{
"responseHeader": {
"status": 500,
"QTime": 20759
},
"error": {
"metadata": {
"error-class": "org.apache.solr.common.SolrException",
"root-error-class": "org.apache.solr.common.SolrException"
},
"msg": "Could not find replica when balancing:
ReplicaImpl{replicaName='core_node8', coreName='test_shard1_replica_n7',
shard='shard1', replicaType=NRT, replicaState=DOWN,
node='NodeImpl(localhost:8983_solr)'}",
"trace": "org.apache.solr.common.SolrException: Could not find replica
when balancing: ReplicaImpl{replicaName='core_node8',
coreName='test_shard1_replica_n7', shard='shard1', replicaType=NRT,
replicaState=DOWN, node='NodeImpl(localhost:8983_solr)'}\n\tat
org.apache.solr.client.solrj.SolrResponse.getException(SolrResponse.java:56)\n\tat
org.apache.solr.handler.admin.api.BalanceReplicasAPI.balanceReplicas(BalanceReplicasAPI.java:84)\n\tat
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)\n\tat
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n\tat
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n\tat
java.base/java.lang.reflect.Method.invoke(Method.java:566)\n\tat
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)\n\tat
org.glassfish.jersey.server.model
.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)\n\tat
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)\n\tat
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:219)\n\tat
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)\n\tat
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:475)\n\tat
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:397)\n\tat
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)\n\tat
org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:255)\n\tat
org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)\n\tat org.gl
assfish.jersey.internal.Errors$1.call(Errors.java:244)\n\tat
org.glassfish.jersey.internal.Errors.process(Errors.java:292)\n\tat
org.glassfish.jersey.internal.Errors.process(Errors.java:274)\n\tat
org.glassfish.jersey.internal.Errors.process(Errors.java:244)\n\tat
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)\n\tat
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234)\n\tat
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:684)\n\tat
org.apache.solr.api.V2HttpCall.invokeJerseyRequest(V2HttpCall.java:384)\n\tat
org.apache.solr.api.V2HttpCall.invokeJerseyRequest(V2HttpCall.java:348)\n\tat
org.apache.solr.api.V2HttpCall.handleAdmin(V2HttpCall.java:433)\n\tat
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:870)\n\tat
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:541)\n\tat
org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:250)\n\tat
org
.apache.solr.servlet.SolrDispatchFilter.lambda$doFilter$0(SolrDispatchFilter.java:218)\n\tat
org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:257)\n\tat
org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:227)\n\tat
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:213)\n\tat
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:195)\n\tat
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210)\n\tat
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)\n\tat
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)\n\tat
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578)\n\tat
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.nextHandl
e(ScopedHandler.java:223)\n\tat
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1570)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)\n\tat
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1385)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)\n\tat
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)\n\tat
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1543)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)\n\tat
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1307)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)\n\tat
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:149)\n\tat
org.eclipse.jetty.server.handler.InetAccessHandler.handle(InetAccessHandler.jav
a:228)\n\tat
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:141)\n\tat
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301)\n\tat
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:822)\n\tat
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)\n\tat
org.eclipse.jetty.server.Server.handle(Server.java:563)\n\tat
org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505)\n\tat
org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762)\n\tat
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497)\n\tat
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)\n\tat
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)
\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)\n\tat
org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)\n\tat
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:416)\n\tat
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:385)\n\tat
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:272)\n\tat
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produce(AdaptiveExecutionStrategy.java:194)\n\tat
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:936)\n\tat
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1080)\n\tat
java.base/java.lang.Thread.run(Thread.java:829)\n",
"code": 500
}
}
```
New:
```
{
"responseHeader": {
"status": 500,
"QTime": 117
},
"error": {
"metadata": {
"error-class": "org.apache.solr.common.SolrException",
"root-error-class": "org.apache.solr.common.SolrException"
},
"msg": "Could not find replica when balancing:
ReplicaImpl{replicaName='core_node3', coreName='test_shard3_replica_n1',
shard='shard3', replicaType=NRT, replicaState=ACTIVE,
node='NodeImpl(localhost:7574_solr)'}",
"code": 500,
"trace": {
"stackTrace": [
"org.apache.solr.client.solrj.SolrResponse.getException(SolrResponse.java:56)",
"org.apache.solr.handler.admin.api.BalanceReplicasAPI.balanceReplicas(BalanceReplicasAPI.java:84)",
"java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)",
(shortened for readability)
]
}
}
}
```
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