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From "Miron Aseev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-2405) Ignite is blocking the thread in case it can't connect to the node
Date Tue, 19 Jan 2016 13:53:39 GMT
Miron Aseev created IGNITE-2405:
-----------------------------------

             Summary: Ignite is blocking the thread in case it can't connect to the node
                 Key: IGNITE-2405
                 URL: https://issues.apache.org/jira/browse/IGNITE-2405
             Project: Ignite
          Issue Type: Bug
    Affects Versions: 1.5
            Reporter: Miron Aseev


It seems that Apache Ignite runs an infinite loop if it can't connect to the resolved hostname.

For example, if you specify the hostname of the local machine as an address for the TCPSpi,
then Apache Ignite resolves it [here|https://github.com/apache/ignite/blob/b3d347e35a254928fd1c4a0473f1b17d642c72f3/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java#L915].


But after that, for some reasons, it fails to connect to the resolved address [here|https://github.com/apache/ignite/blob/b3d347e35a254928fd1c4a0473f1b17d642c72f3/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java#L925].


As a result, the control flow goes to the catch block where the exception is logged (It's
an IgniteSpiException. It seems it can't get acces to the host according to the exception
message - "Network operation timed out. Increase 'failureDetectionTimeout' configuration property
[failureDetectionTimeout=10000]"). 
In the end, we get an infinite loop.

On the other hand, If I set an ip address (127.0.0.1) instead of the hostname, Ignite gets
an empty list [here|https://github.com/apache/ignite/blob/b3d347e35a254928fd1c4a0473f1b17d642c72f3/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java#L915]
and the control flow breaks the loop [here|https://github.com/apache/ignite/blob/b3d347e35a254928fd1c4a0473f1b17d642c72f3/modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/ServerImpl.java#L918]
and goes forward.

Here's a log information which Ignite produces during its work.

{code}
Jan 19, 2016 7:33:02 PM java.util.logging.LogManager$RootLogger log
SEVERE: Failed to resolve default logging config file: config/java.util.logging.properties
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: 

>>>    __________  ________________  
>>>   /  _/ ___/ |/ /  _/_  __/ __/  
>>>  _/ // (7 7    // /  / / / _/    
>>> /___/\___/_/|_/___/ /_/ /___/   
>>> 
>>> ver. 1.5.0-final#20151229-sha1:f1f8cda2
>>> 2015 Copyright(C) Apache Software Foundation
>>> 
>>> Ignite documentation: http://ignite.apache.org

Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Config URL: n/a
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Daemon mode: off
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: OS: Linux 3.13.0-74-generic amd64
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: OS user: maseev
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Language runtime: Java Platform API Specification ver. 1.8
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: VM information: Java(TM) SE Runtime Environment 1.8.0_40-b26 Oracle Corporation Java
HotSpot(TM) 64-Bit Server VM 25.40-b25
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: VM total memory: 3.5GB
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Remote Management [restart: off, REST: on, JMX (remote: off)]
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: IGNITE_HOME=null
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: VM arguments: [-agentlib:jdwp=transport=dt_socket,address=127.0.0.1:51947,suspend=y,server=n,
-ea, -DIGNITE_QUIET=false, -Didea.junit.sm_runner, -Dfile.encoding=UTF-8]
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Configured caches ['ignite-marshaller-sys-cache', 'ignite-sys-cache', 'ignite-atomics-sys-cache']
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger warning
WARNING: Initial heap size is 250MB (should be no less than 512MB, use -Xms512m -Xmx512m).
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Non-loopback local IPs: 172.17.0.1, 192.168.88.252, fe80:0:0:0:42:2aff:feff:fe3d%docker0,
fe80:0:0:0:f2de:f1ff:feb6:5301%eth0
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Enabled local MACs: 02422AFFFE3D, F0DEF1B65301
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Configured plugins:
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO:   ^-- None
Jan 19, 2016 7:33:03 PM org.apache.ignite.logger.java.JavaLogger info
INFO: 
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger info
INFO: IPC shared memory server endpoint started [port=48103, tokDir=/tmp/ignite/work/ipc/shmem/62396752-fb2f-4402-bff6-9f5f2d4fc0b3-8658]
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Successfully bound shared memory communication to TCP port [port=48103, locHost=0.0.0.0/0.0.0.0]
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Successfully bound to TCP port [port=47103, locHost=0.0.0.0/0.0.0.0]
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger warning
WARNING: Checkpoints are disabled (to enable configure any GridCheckpointSpi implementation)
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger warning
WARNING: Collision resolution is disabled (all jobs will be activated upon arrival).
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger warning
WARNING: Swap space is disabled. To enable use FileSwapSpaceSpi.
Jan 19, 2016 7:33:04 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Security status [authentication=off, tls/ssl=off]
Jan 19, 2016 7:33:05 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Command protocol successfully started [name=TCP binary, host=0.0.0.0/0.0.0.0, port=11214]
Jan 19, 2016 7:33:05 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Successfully bound to TCP port [port=47503, localHost=0.0.0.0/0.0.0.0]
Jan 19, 2016 7:33:13 PM org.apache.ignite.logger.java.JavaLogger info
INFO: Your version is up to date.
{code}

And here's a simple [test|https://github.com/maseev/ignite/blob/master/src/test/java/io/github/maseev/IgniteTest.java#L23]
which reproduces the problem. You can run it with maven by executing it with {code}mvn test{code}



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