你好，现在有时还是会出现这个错误
424:{"error":{"code":424,"message":"Call queue is full on /0.0.0.0:60020, too many items queued ?","trace":"net.opentsdb.tsd.BadRequestException: Call queue is full on /0.0.0.0:60020, too many items queued ?\n\tat net.opentsdb.tsd.QueryRpc$1ErrorCB.call(QueryRpc.java:180) [tsdb-2.2.1-SNAPSHOT.jar:4b14b2d]\n\tat net.opentsdb.tsd.QueryRpc$1ErrorCB.call(QueryRpc.java:158) [tsdb-2.2.1-SNAPSHOT.jar:4b14b2d]\n\tat com.stumbleupon.async.Deferred.doCall(Deferred.java:1278) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.Deferred.access$300(Deferred.java:430) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.Deferred$Continue.call(Deferred.java:1366) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.Deferred.doCall(Deferred.java:1278) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.Deferred.callback(Deferred.java:1005) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.DeferredGroup.done(DeferredGroup.java:169) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.DeferredGroup.recordCompletion(DeferredGroup.java:158) [async-1.4.0.jar:na]\n\tat com.stumbleupon.async.DeferredGroup.access$200(DeferredGroup.java:36) [async-1.4.0.jar:na]\n\tat
