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https://issues.apache.org/jira/browse/ZOOKEEPER-3253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ZOOKEEPER-3253:
--------------------------------------
Labels: pull-request-available (was: )
> client should not send requests with cxid=-4, -2, or -1
> -------------------------------------------------------
>
> Key: ZOOKEEPER-3253
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3253
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Affects Versions: 3.4.9, 4.0.0
> Reporter: Samuel Just
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> Once the cxid value increments to -4, the client will interpret the response
> as an auth packet rather than as a response to a request and will
> transparently drop the response and the request will hang. Similarly, -2
> will be seen as a ping and will be dropped hanging the request. -1 shows up
> as a WatcherEvent and results in the error below.
>
> {quote}2019-01-07T21:58:23.209+00:00 [INFO ]
> [main-SendThread(mnds1-2-phx.ops.sfdc.net:2181)] [ClientCnxn.java:1381] [:] -
> Session establishment complete on server
> mnds1-2-phx.ops.sfdc.net/10.246.244.71:2181, sessionid = 0x267859729d66320,
> negotiated timeout = 10000
> 2019-01-07T21:58:22.281+00:00 20190107215822.281000 [WARN ]
> [main-SendThread(mnds1-3-phx.ops.sfdc.net:2181)] [ClientCnxn.java:1235] [:] -
> Session 0x267859729d66320 for server
> mnds1-3-phx.ops.sfdc.net/10.246.244.69:2181, unexpected error, closing socket
> connection and attempting reconnect
> java.io.IOException: Unreasonable length = 892612659
> at
> org.apache.jute.BinaryInputArchive.checkLength(BinaryInputArchive.java:127)
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> at org.apache.jute.BinaryInputArchive.readString(BinaryInputArchive.java:81)
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> at org.apache.zookeeper.proto.WatcherEvent.deserialize(WatcherEvent.java:66)
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> at
> org.apache.zookeeper.ClientCnxn$SendThread.readResponse(ClientCnxn.java:839)
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:101)
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:363)
>
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1214)
> ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
> {quote}
>
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