[jira] [Created] (TINKERPOP-1172) Reconnect to Gremlin Server previously marked as dead

["stephen mallette (JIRA)" <ji...@apache.org>]

stephen mallette created TINKERPOP-1172:
-------------------------------------------

             Summary: Reconnect to Gremlin Server previously marked as dead
                 Key: TINKERPOP-1172
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1172
             Project: TinkerPop
          Issue Type: Bug
          Components: driver
    Affects Versions: 3.1.1-incubating
            Reporter: stephen mallette
            Assignee: stephen mallette
             Fix For: 3.1.2-incubating


We have a test to validate that this works when connecting to multiple servers in a round-robin fashion but nothing that tests against a single server and it seems that there are some problems around that particular situation. It tends to manifest as:

{code}
Caused by: java.lang.NullPointerException: null
	at org.apache.tinkerpop.gremlin.driver.ConnectionPool.considerUnavailable(ConnectionPool.java:392) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	at org.apache.tinkerpop.gremlin.driver.ConnectionPool.<init>(ConnectionPool.java:101) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	at org.apache.tinkerpop.gremlin.driver.Client$SessionedClient.initializeImplementation(Client.java:558) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	at org.apache.tinkerpop.gremlin.driver.Client.init(Client.java:117) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:182) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:174) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	at org.apache.tinkerpop.gremlin.driver.Client.submit(Client.java:144) ~[gremlin-driver-3.1.2-SNAPSHOT.jar:3.1.2-SNAPSHOT]
	... 21 common frames omitted
{code}

when the {{ConnectionPool}} can not be intialized in any way at start up. If that happens the {{Client}} doesn't seem to recover well.



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