[
https://issues.apache.org/jira/browse/FLINK-13878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Metzger updated FLINK-13878:
-----------------------------------
Component/s: Runtime / Coordination
> Flink CLI fails (TimeoutException) for unknown reason
> -----------------------------------------------------
>
> Key: FLINK-13878
> URL: https://issues.apache.org/jira/browse/FLINK-13878
> Project: Flink
> Issue Type: Bug
> Components: Command Line Client, Runtime / Coordination
> Reporter: Mitch Wasson
> Priority: Major
>
> We are running Flink 1.8.1 in HA mode with Zookeeper 3.4.11.
> {{When we list/submit/cancel from the CLI on a job manager, the operation
> fails with a TimeoutException. Here is an example:}}
> {{ $ ./bin/flink list}}
> {{ Waiting for
> response...}}{{------------------------------------------------------------}}
> {{ The program finished with the following
> exception:}}{{org.apache.flink.util.FlinkException: Failed to retrieve job
> list.}}
> {{ at org.apache.flink.client.cli.CliFrontend.listJobs(CliFrontend.java:448)}}
> {{ at
> org.apache.flink.client.cli.CliFrontend.lambda$list$0(CliFrontend.java:430)}}
> {{ at
> org.apache.flink.client.cli.CliFrontend.runClusterAction(CliFrontend.java:985)}}
> {{ at org.apache.flink.client.cli.CliFrontend.list(CliFrontend.java:427)}}
> {{ at
> org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1053)}}
> {{ at
> org.apache.flink.client.cli.CliFrontend.lambda$main$11(CliFrontend.java:1126)}}
> {{ at
> org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)}}
> {{ at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1126)}}
> {{ Caused by: java.util.concurrent.TimeoutException}}
> {{ at
> org.apache.flink.runtime.concurrent.FutureUtils$Timeout.run(FutureUtils.java:943)}}
> {{ at
> org.apache.flink.runtime.concurrent.DirectExecutorService.execute(DirectExecutorService.java:211)}}
> {{ at
> org.apache.flink.runtime.concurrent.FutureUtils.lambda$orTimeout$11(FutureUtils.java:361)}}
> {{ at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)}}
> {{ at java.util.concurrent.FutureTask.run(FutureTask.java:266)}}
> {{ at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)}}
> {{ at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)}}
> {{ at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)}}
> {{ at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)}}
> {{ at java.lang.Thread.run(Thread.java:748)}}
>
> {{When the same command is run with strace, we see that the CLI only manages
> to connect out to zookeeper and hangs on that connection:}}
> {{ $ strace -f -e connect ./bin/flink list}}
> {{ ...}}
> {{ [pid 29445] connect(27, \{sa_family=AF_INET, sin_port=htons(53),
> sin_addr=inet_addr("gateway ip")}, 16) = 0}}
> {{ ...}}
> {{ [pid 29445] connect(27,\{sa_family=AF_INET, sin_port=htons(2181),
> sin_addr=inet_addr("zookeeper ip")}, 16) = -1 EINPROGRESS (Operation now in
> progress)}}
> {{ strace: Process 29448 attached}}
> {{ Waiting for response...}}
> {{ ...}}
> {{ Exception}}
>
> {{The CLI is able to successfully connect to zookeeper and even appears to
> submit commands. This is verified by logs from zookeeper:}}
> {{INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@215] -
> Accepted socket connection from /JOB_MANAGER_IP:52074}}
> {{DEBUG [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@880] -
> Session establishment request from client /JOB_MANAGER_IP:52074 client's
> lastZxid is 0x0}}
> {{INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@938] -
> Client attempting to establish new session at /JOB_MANAGER_IP:52074}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:createSession cxid:0x0
> zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a}}
> {{DEBUG [QuorumPeer[myid=3]/0.0.0.0:2181:CommitProcessor@164] - Committing
> request:: sessionid:0x30037a90dce0001 type:createSession cxid:0x0
> zxid:0x10200000109 txntype:-10 reqpath:n/a}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:createSession cxid:0x0 zxid:0x10200000109
> txntype:-10 reqpath:n/a}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:createSession cxid:0x0 zxid:0x10200000109
> txntype:-10 reqpath:n/a}}
> {{INFO [CommitProcessor:3:ZooKeeperServer@683] - Established session
> 0x30037a90dce0001 with negotiated timeout 40000 for client
> /JOB_MANAGER_IP:52074}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x1
> zxid:0xfffffffffffffffe txntype:unknown reqpath:/flink}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:exists cxid:0x1 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:exists cxid:0x1 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x2
> zxid:0xfffffffffffffffe txntype:unknown reqpath:/flink/CLUSTER_NAME}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:exists cxid:0x2 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:exists cxid:0x2 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x3
> zxid:0xfffffffffffffffe txntype:unknown reqpath:/flink}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:exists cxid:0x3 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:exists cxid:0x3 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x4
> zxid:0xfffffffffffffffe txntype:unknown reqpath:/flink/CLUSTER_NAME}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:exists cxid:0x4 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:exists cxid:0x4 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x5
> zxid:0xfffffffffffffffe txntype:unknown reqpath:/flink/CLUSTER_NAME/leader}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:exists cxid:0x5 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME/leader}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:exists cxid:0x5 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME/leader}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x6
> zxid:0xfffffffffffffffe txntype:unknown
> reqpath:/flink/CLUSTER_NAME/leader/rest_server_lock}}
> {{DEBUG [FollowerRequestProcessor:3:CommitProcessor@174] - Processing
> request:: sessionid:0x30037a90dce0001 type:exists cxid:0x7
> zxid:0xfffffffffffffffe txntype:unknown reqpath:/flink}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@89] - Processing request::
> sessionid:0x30037a90dce0001 type:exists cxid:0x6 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME/leader/rest_server_lock}}
> {{DEBUG [CommitProcessor:3:FinalRequestProcessor@161] -
> sessionid:0x30037a90dce0001 type:exists cxid:0x6 zxid:0xfffffffffffffffe
> txntype:unknown reqpath:/flink/CLUSTER_NAME/leader/rest_server_lock}}
>
> Based on those logs I can speculate the the CLI has difficulty obtaining the
> rest server lock, but I don't really know.
> In case it matters, we recently upgraded to Flink 1.8.
> Here are a few instances of similar issues we have found online which don't
> seem to have conclusive endings:
> [https://stackoverflow.com/questions/53716795/flink-1-6-timeoutexception-while-submitting-the-job]
> [https://mail-archives.apache.org/mod_mbox/flink-user/201812.mbox/%3ca80ea545-cd42-a5a3-4321-d4ebfc79e...@apache.org%3E]
> [https://mail-archives.apache.org/mod_mbox/flink-user/201809.mbox/%3ccac2r296tesd00qra9drd+atfngtrj0gcrxnpn-bvvcuvd4-...@mail.gmail.com%3e]
>
>
>
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