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portkey-cloud / portkey

Live-coding the Cloud
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Portkey only works with java 8, not 9 or 10. #43

Open MageMasher opened 6 years ago

MageMasher commented 6 years ago

asciicast

The issue has to do with Ouroboros not being able to instrument the jvm. I tried to highlight the issue but apparently asciinema doesn't display tmux output. Below is the stack trace.

 ~/programming/git_repos/portkey/examples/ring-app   master  lein repl
Preparing for self instrumentation.
#error {
 :cause Can not attach to current VM
 :via
 [{:type clojure.lang.Compiler$CompilerException
   :message java.lang.reflect.InvocationTargetException, compiling:(portkey/ouroboros.clj:177:1)
   :at [clojure.lang.Compiler load Compiler.java 7526]}
  {:type java.lang.reflect.InvocationTargetException
   :message nil
   :at [jdk.internal.reflect.NativeMethodAccessorImpl invoke0 NativeMethodAccessorImpl.java -2]}
  {:type java.io.IOException
   :message Can not attach to current VM
   :at [sun.tools.attach.HotSpotVirtualMachine <init> HotSpotVirtualMachine.java 75]}]
 :trace
 [[sun.tools.attach.HotSpotVirtualMachine <init> HotSpotVirtualMachine.java 75]
  [sun.tools.attach.VirtualMachineImpl <init> VirtualMachineImpl.java 58]
  [sun.tools.attach.AttachProviderImpl attachVirtualMachine AttachProviderImpl.java 58]
  [com.sun.tools.attach.VirtualMachine attach VirtualMachine.java 207]
  [jdk.internal.reflect.NativeMethodAccessorImpl invoke0 NativeMethodAccessorImpl.java -2]
  [jdk.internal.reflect.NativeMethodAccessorImpl invoke NativeMethodAccessorImpl.java 62]
  [jdk.internal.reflect.DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl.java 43]
  [java.lang.reflect.Method invoke Method.java 564]
  [portkey.ouroboros$eval3126 invokeStatic ouroboros.clj 186]
  [portkey.ouroboros$eval3126 invoke ouroboros.clj 177]
  [clojure.lang.Compiler eval Compiler.java 7062]
  [clojure.lang.Compiler load Compiler.java 7514]
  [clojure.lang.RT loadResourceScript RT.java 379]
  [clojure.lang.RT loadResourceScript RT.java 370]
  [clojure.lang.RT load RT.java 460]
  [clojure.lang.RT load RT.java 426]
  [clojure.core$load$fn__6550 invoke core.clj 6047]
  [clojure.core$load invokeStatic core.clj 6046]
  [clojure.core$load doInvoke core.clj 6030]
  [clojure.lang.RestFn invoke RestFn.java 408]
  [clojure.core$load_one invokeStatic core.clj 5849]
  [clojure.core$load_one invoke core.clj 5844]
  [clojure.core$load_lib$fn__6495 invoke core.clj 5889]
  [clojure.core$load_lib invokeStatic core.clj 5888]
  [clojure.core$load_lib doInvoke core.clj 5869]
  [clojure.lang.RestFn applyTo RestFn.java 142]
  [clojure.core$apply invokeStatic core.clj 659]
  [clojure.core$load_libs invokeStatic core.clj 5926]
  [clojure.core$load_libs doInvoke core.clj 5910]
  [clojure.lang.RestFn applyTo RestFn.java 137]
  [clojure.core$apply invokeStatic core.clj 659]
  [clojure.core$require invokeStatic core.clj 5948]
  [clojure.core$require doInvoke core.clj 5948]
  [clojure.lang.RestFn invoke RestFn.java 805]
  [portkey.core$eval3059$loading__6436__auto____3060 invoke core.clj 1]
  [portkey.core$eval3059 invokeStatic core.clj 1]
  [portkey.core$eval3059 invoke core.clj 1]
  [clojure.lang.Compiler eval Compiler.java 7062]
  [clojure.lang.Compiler eval Compiler.java 7051]
  [clojure.lang.Compiler load Compiler.java 7514]
  [clojure.lang.RT loadResourceScript RT.java 379]
  [clojure.lang.RT loadResourceScript RT.java 370]
  [clojure.lang.RT load RT.java 460]
  [clojure.lang.RT load RT.java 426]
  [clojure.core$load$fn__6550 invoke core.clj 6047]
  [clojure.core$load invokeStatic core.clj 6046]
  [clojure.core$load doInvoke core.clj 6030]
  [clojure.lang.RestFn invoke RestFn.java 408]
  [clojure.core$load_one invokeStatic core.clj 5849]
  [clojure.core$load_one invoke core.clj 5844]
  [clojure.core$load_lib$fn__6495 invoke core.clj 5889]
  [clojure.core$load_lib invokeStatic core.clj 5888]
  [clojure.core$load_lib doInvoke core.clj 5869]
  [clojure.lang.RestFn applyTo RestFn.java 142]
  [clojure.core$apply invokeStatic core.clj 659]
  [clojure.core$load_libs invokeStatic core.clj 5926]
  [clojure.core$load_libs doInvoke core.clj 5910]
  [clojure.lang.RestFn applyTo RestFn.java 137]
  [clojure.core$apply invokeStatic core.clj 659]
  [clojure.core$require invokeStatic core.clj 5948]
  [clojure.core$require doInvoke core.clj 5948]
  [clojure.lang.RestFn invoke RestFn.java 436]
  [dev$eval158$loading__6436__auto____159 invoke dev.clj 1]
  [dev$eval158 invokeStatic dev.clj 1]
  [dev$eval158 invoke dev.clj 1]
  [clojure.lang.Compiler eval Compiler.java 7062]
  [clojure.lang.Compiler eval Compiler.java 7051]
  [clojure.lang.Compiler load Compiler.java 7514]
  [clojure.lang.RT loadResourceScript RT.java 379]
  [clojure.lang.RT loadResourceScript RT.java 370]
  [clojure.lang.RT load RT.java 460]
  [clojure.lang.RT load RT.java 426]
  [clojure.core$load$fn__6550 invoke core.clj 6047]
  [clojure.core$load invokeStatic core.clj 6046]
  [clojure.core$load doInvoke core.clj 6030]
  [clojure.lang.RestFn invoke RestFn.java 408]
  [clojure.core$load_one invokeStatic core.clj 5849]
  [clojure.core$load_one invoke core.clj 5844]
  [clojure.core$load_lib$fn__6495 invoke core.clj 5889]
  [clojure.core$load_lib invokeStatic core.clj 5888]
  [clojure.core$load_lib doInvoke core.clj 5869]
  [clojure.lang.RestFn applyTo RestFn.java 142]
  [clojure.core$apply invokeStatic core.clj 659]
  [clojure.core$load_libs invokeStatic core.clj 5926]
  [clojure.core$load_libs doInvoke core.clj 5910]
  [clojure.lang.RestFn applyTo RestFn.java 137]
  [clojure.core$apply invokeStatic core.clj 659]
  [clojure.core$require invokeStatic core.clj 5948]
  [clojure.core$require doInvoke core.clj 5948]
  [clojure.lang.RestFn invoke RestFn.java 408]
  [user$eval15 invokeStatic form-init6730845369384340559.clj 1]
  [user$eval15 invoke form-init6730845369384340559.clj 1]
  [clojure.lang.Compiler eval Compiler.java 7062]
  [clojure.lang.Compiler eval Compiler.java 7051]
  [clojure.lang.Compiler eval Compiler.java 7051]
  [clojure.lang.Compiler load Compiler.java 7514]
  [clojure.lang.Compiler loadFile Compiler.java 7452]
  [clojure.main$load_script invokeStatic main.clj 278]
  [clojure.main$init_opt invokeStatic main.clj 280]
  [clojure.main$init_opt invoke main.clj 280]
  [clojure.main$initialize invokeStatic main.clj 311]
  [clojure.main$null_opt invokeStatic main.clj 345]
  [clojure.main$null_opt invoke main.clj 342]
  [clojure.main$main invokeStatic main.clj 424]
  [clojure.main$main doInvoke main.clj 387]
  [clojure.lang.RestFn applyTo RestFn.java 137]
  [clojure.lang.Var applyTo Var.java 702]
  [clojure.main main main.java 37]]}
nREPL server started on port 58436 on host 127.0.0.1 - nrepl://127.0.0.1:58436
REPL-y 0.3.7, nREPL 0.2.12
Clojure 1.9.0-beta1
Java HotSpot(TM) 64-Bit Server VM 10.0.1+10
    Docs: (doc function-name-here)
          (find-doc "part-of-name-here")
  Source: (source function-name-here)
 Javadoc: (javadoc java-object-or-class-here)
    Exit: Control+D or (exit) or (quit)
 Results: Stored in vars *1, *2, *3, an exception in *e

dev=>
viesti commented 6 years ago

This is similar to https://github.com/clojure-goes-fast/clj-memory-meter/issues/1#issuecomment-373262272, so:

JVM_OPTS=-Djdk.attach.allowAttachSelf=true lein repl

gets to the next step, which is:

CompilerException java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader, compiling:(core.clj:249:3)
user=> *e
#error {
 :cause "java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader"
 :via
 [{:type clojure.lang.Compiler$CompilerException
   :message "java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader, compiling:(core.clj:249:3)"
   :at [clojure.lang.Compiler$InvokeExpr eval "Compiler.java" 3700]}
  {:type java.lang.ClassCastException
   :message "java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader"
   :at [portkey.core$fn__17864 invokeStatic "core.clj" 253]}]
 :trace

So we need to catch up with changes to classloader hierarchy in Java9.

viesti commented 6 years ago

Then again, Lambda runtime is based on Java8, so it's best to use Java8 for Clojure Lambdas for now.

cgrand commented 6 years ago

for future ref: some avoid the flag by launching a helper process https://github.com/raphw/byte-buddy/issues/295