You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@tinkerpop.apache.org by "Dylan Millikin (JIRA)" <ji...@apache.org> on 2015/10/09 15:56:26 UTC
[jira] [Comment Edited] (TINKERPOP3-875) Reset to automatic
transactions for sessionless requests in Gremlin Server
[ https://issues.apache.org/jira/browse/TINKERPOP3-875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14950414#comment-14950414 ]
Dylan Millikin edited comment on TINKERPOP3-875 at 10/9/15 1:56 PM:
--------------------------------------------------------------------
On second thought there is that very very odd off chance someone somewhere is doing what you described... hmm. Seeing as this hasn't been brought up by anyone yet maybe it's best to make it breaking and include it into master, just to stay safe?
Edit: If we go this way maybe it's best to wait what comes out of the ThreadLocal discussion as that could remove the need for this?
was (Author: dmill):
On second thought there is that very very odd off chance someone somewhere is doing what you described... hmm. Seeing as this hasn't been brought up by anyone yet maybe it's best to make it breaking and include it into master, just to stay safe?
> Reset to automatic transactions for sessionless requests in Gremlin Server
> --------------------------------------------------------------------------
>
> Key: TINKERPOP3-875
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-875
> Project: TinkerPop 3
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.0.1-incubating
> Reporter: Dylan Millikin
> Assignee: stephen mallette
> Priority: Minor
>
> I'm still experiencing issue with transactions (working my way from the titan bug). The following series of requests to gremlin server fail on the last {{tx().open()}} because of some issue with transaction management.
> I've included all the information I have in the form of the log and the requests. They're all short enough to go through easily.
> I'm also using a 3.0.2 snapshot that outdates the changes that were made to session management (as can be noticed by the last request with an {{op}} of {{close}})
> {{GraphT}} and {{t}} refer to a neo4j graph and it's corresponding traversal.
> Here's the full succession of requests (create two vertices in a transaction, fetch them and delete them in another transaction):
> {code}
> {"requestId":"5d1790dc-5ae0-4926-bc67-8736adbde576","processor":"session","op":"eval","args":{"gremlin":"graphT.tx().open()","session":"bc1c71e5-4122-4829-a349-0c9a8c0df5bd"}}
> {"requestId":"bb0b6981-7d5e-4552-a964-f1b91b08bbe4","processor":"session","op":"eval","args":{"gremlin":"t.addV().property(B_KEY_NAME,B_KEYVALUE_NAME).property(B_KEY_AGE,B_KEYVALUE_AGE)","bindings":{"B_KEY_NAME":"name","B_KEYVALUE_NAME":"john","B_KEY_AGE":"age","B_KEYVALUE_AGE":27},"session":"bc1c71e5-4122-4829-a349-0c9a8c0df5bd"}}
> {"requestId":"37c133ab-195b-43d9-bb6a-c3b6e41e1396","processor":"session","op":"eval","args":{"gremlin":"t.addV().property(B_KEY_NAME,B_KEYVALUE_NAME).property(B_KEY_AGE,B_KEYVALUE_AGE)","bindings":{"B_KEY_NAME":"name","B_KEYVALUE_NAME":"john","B_KEY_AGE":"age","B_KEYVALUE_AGE":27},"session":"bc1c71e5-4122-4829-a349-0c9a8c0df5bd"}}
> {"requestId":"3cf7a392-4090-40a2-bb33-1b89e731cf03","processor":"session","op":"eval","args":{"gremlin":"graphT.tx().commit()","session":"bc1c71e5-4122-4829-a349-0c9a8c0df5bd"}}
> {"requestId":"d641b90e-d746-4c44-87e4-226171a2bb44","processor":"","op":"eval","args":{"gremlin":"t.V(B_R_ID).range(0,1)","bindings":{"B_R_ID":168}}}
> {"requestId":"b22267fb-49a3-4525-aa5c-938a9f7221cf","processor":"","op":"eval","args":{"gremlin":"t.V(B_R_ID).range(0,1)","bindings":{"B_R_ID":162}}}
> // 5 second sleep
> {"requestId":"67512bb9-14ab-42c4-9135-5e279a45fd11","processor":"session","op":"eval","args":{"gremlin":"graphT.tx().open()","session":"bc1c71e5-4122-4829-a349-0c9a8c0df5bd"}}
> {"requestId":"55bbffa2-8bf2-4a2a-971a-c9b2efb9d183","processor":"session","op":"close","args":{"gremlin":"","session":"bc1c71e5-4122-4829-a349-0c9a8c0df5bd"}}
> {code}
> Here's the full server log from start to finish:
> {code}
> [INFO] Session - New session established for bc1c71e5-4122-4829-a349-0c9a8c0df5bd
> [INFO] ScriptEngines - Loaded nashorn ScriptEngine
> [INFO] ScriptEngines - Loaded gremlin-groovy ScriptEngine
> [INFO] GremlinExecutor - Initialized gremlin-groovy ScriptEngine with scripts/gremlin-php-script.groovy
> [WARN] AbstractEvalOpProcessor - Exception processing a script on request [RequestMessage{, requestId=67512bb9-14ab-42c4-9135-5e279a45fd11, op='eval', processor='session', args={gremlin=graphT.tx().open(), session=bc1c71e5-4122-4829-a349-0c9a8c0df5bd}}].
> java.lang.IllegalStateException: Stop the current transaction before opening another
> at org.apache.tinkerpop.gremlin.structure.Transaction$Exceptions.transactionAlreadyOpen(Transaction.java:139)
> at org.apache.tinkerpop.gremlin.structure.util.AbstractTransaction.open(AbstractTransaction.java:85)
> at org.apache.tinkerpop.gremlin.structure.Transaction$open.call(Unknown Source)
> at Script2.run(Script2.groovy:1)
> at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine.eval(GremlinGroovyScriptEngine.java:525)
> at org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngine.eval(GremlinGroovyScriptEngine.java:365)
> at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:233)
> at org.apache.tinkerpop.gremlin.groovy.engine.ScriptEngines.eval(ScriptEngines.java:96)
> at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor.lambda$eval$7(GremlinExecutor.java:244)
> at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor$$Lambda$110/1114839633.call(Unknown Source)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> [INFO] Session - Rolling back open transactions on graphT before killing session: bc1c71e5-4122-4829-a349-0c9a8c0df5bd
> [INFO] Session - Session bc1c71e5-4122-4829-a349-0c9a8c0df5bd closed
> {code}
> Any ideas where to start looking?
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)