背景
當前業務中遇到一個場景，爲了提高查詢效率，比如會一次要查詢多個頂點詳情，但是當傳入的點過多時，會報參數過多的限制異常。
代碼
client的獲取後續會在其它文章中補充
@Test
public void bigSubmitTest() throws ExecutionException, InterruptedException {
Client client = GraphUtil.getClient();
List<String> ids = Lists.newArrayList();
for (int i = 0; i < 500; i++) {
ids.add(i + 4000 + "");
}
String join = String.join(",", ids);
List<Result> results = client.submit("g.V(" + join + ")").all().get();
for (Result result : results) {
System.out.println("");
}
client.close();
}
異常
java.util.concurrent.ExecutionException: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: startup failed:
General error during class generation: The max number of supported arguments is 255, but found 500
java.lang.IllegalArgumentException: The max number of supported arguments is 255, but found 500
at org.codehaus.groovy.classgen.asm.CallSiteWriter.getCreateArraySignature(CallSiteWriter.java:74)
at org.codehaus.groovy.classgen.asm.CallSiteWriter.makeCallSite(CallSiteWriter.java:336)
at org.codehaus.groovy.classgen.asm.InvocationWriter.makeCachedCall(InvocationWriter.java:340)
at org.codehaus.groovy.classgen.asm.InvocationWriter.makeCall(InvocationWriter.java:430)
at org.codehaus.groovy.classgen.asm.InvocationWriter.makeCall(InvocationWriter.java:137)
at org.codehaus.groovy.classgen.asm.InvocationWriter.makeInvokeMethodCall(InvocationWriter.java:121)
at org.codehaus.groovy.classgen.asm.InvocationWriter.writeInvokeMethod(InvocationWriter.java:497)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitMethodCallExpression(AsmClassGenerator.java:836)
at org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:68)
at org.codehaus.groovy.classgen.asm.StatementWriter.writeReturn(StatementWriter.java:605)
at org.codehaus.groovy.classgen.asm.OptimizingStatementWriter.writeReturn(OptimizingStatementWriter.java:368)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitReturnStatement(AsmClassGenerator.java:685)
at org.codehaus.groovy.ast.stmt.ReturnStatement.visit(ReturnStatement.java:47)
at org.codehaus.groovy.classgen.asm.StatementWriter.writeBlockStatement(StatementWriter.java:93)
at org.codehaus.groovy.classgen.asm.OptimizingStatementWriter.writeBlockStatement(OptimizingStatementWriter.java:205)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitBlockStatement(AsmClassGenerator.java:635)
at org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:69)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:110)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:121)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitStdMethod(AsmClassGenerator.java:495)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorOrMethod(AsmClassGenerator.java:431)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:132)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitMethod(AsmClassGenerator.java:576)
at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1103)
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:54)
at org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:269)
at org.codehaus.groovy.control.CompilationUnit$18.call(CompilationUnit.java:854)
at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1084)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:645)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:623)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:600)
at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:390)
at groovy.lang.GroovyClassLoader.access$300(GroovyClassLoader.java:89)
at groovy.lang.GroovyClassLoader$5.provide(GroovyClassLoader.java:330)
at groovy.lang.GroovyClassLoader$5.provide(GroovyClassLoader.java:327)
at org.codehaus.groovy.runtime.memoize.ConcurrentCommonCache.getAndPut(ConcurrentCommonCache.java:147)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:325)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:309)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:251)
at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine$GroovyCacheLoader.lambda$load$0(GremlinGroovyScriptEngine.java:819)
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
at java.util.concurrent.CompletableFuture.asyncSupplyStage(CompletableFuture.java:1604)
at java.util.concurrent.CompletableFuture.supplyAsync(CompletableFuture.java:1830)
at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine$GroovyCacheLoader.load(GremlinGroovyScriptEngine.java:817)
at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine$GroovyCacheLoader.load(GremlinGroovyScriptEngine.java:812)
at com.github.benmanes.caffeine.cache.BoundedLocalCache$BoundedLocalLoadingCache.lambda$new$0(BoundedLocalCache.java:3117)
at com.github.benmanes.caffeine.cache.LocalCache.lambda$statsAware$0(LocalCache.java:144)
at com.github.benmanes.caffeine.cache.BoundedLocalCache.lambda$doComputeIfAbsent$16(BoundedLocalCache.java:1968)
at java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1892)
at com.github.benmanes.caffeine.cache.BoundedLocalCache.doComputeIfAbsent(BoundedLocalCache.java:1966)
at com.github.benmanes.caffeine.cache.BoundedLocalCache.computeIfAbsent(BoundedLocalCache.java:1949)
at com.github.benmanes.caffeine.cache.LocalCache.computeIfAbsent(LocalCache.java:113)
at com.github.benmanes.caffeine.cache.LocalLoadingCache.get(LocalLoadingCache.java:67)
at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine.getScriptClass(GremlinGroovyScriptEngine.java:567)
at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine.eval(GremlinGroovyScriptEngine.java:374)
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:233)
at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor.lambda$eval$0(GremlinExecutor.java:266)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
解決辦法
分析錯誤的原因，是因爲提交的參數過多，所以會導致此問題。只需要將提交的值，當作一個參數提交就可以解決該問題了。
@Test
public void bigSubmitTest2() throws ExecutionException, InterruptedException {
Client client = GraphUtil.getClient();
List<String> ids = Lists.newArrayList();
for (int i = 0; i < 500; i++) {
ids.add(i + 4000 + "");
}
String join = String.join(",", ids);
Map<String, Object> maps = Maps.newHashMap();
maps.put("ids", ids);
List<Result> results = client.submit("g.V(ids)", maps).all().get();
for (Result result : results) {
System.out.println("");
}
client.close();
}
總結
雖然查詢的問題解決了，但批量gremlin插入數據的問題，採用上述方式，暫時還不得解。
g.addV('person').property('name', 'test1').addV('person').property('name', 'test2')......