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https://issues.apache.org/jira/browse/TINKERPOP3-875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14949365#comment-14949365
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stephen mallette commented on TINKERPOP3-875:
---------------------------------------------
So I added this test:
https://github.com/apache/incubator-tinkerpop/commit/d86705cce455b082b765340f597d7a092883db2f
that seems to work which is cool and shows the basics of manual transactions at
play and working. I'm a little confused by your stream of request though.
Looks like a mix of both sessionless and in-session requests:
{code}
{"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}}}
{code}
Did you mean for those to be sessionless? you also mention that you were doing
this
> (create two vertices in a transaction, fetch them and delete them in another
> transaction)
which i don't see in that sequence. Can you maybe just provide the sequence of
failure with the minimum number of requests? Or better yet, can you modify my
test and make it fail? that would be awesome if you could and probably save a
lot of time.
> transaction commit() issue
> --------------------------
>
> Key: TINKERPOP3-875
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-875
> Project: TinkerPop 3
> Issue Type: Bug
> Components: server
> Reporter: Dylan Millikin
> Assignee: stephen mallette
>
> 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?
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