Errors happened when running TachyonMaster.java

[guanchao wen]

In the source code of Tachyon, I find there are 5 java files containing entry function(main function).
They are:TachyonMaster.java, TachyonWorker.java, TFsShell.java, Format.java and Version.java. And I think the key files are TachyonMaster.java, TachyonWorker.java and Format.java.
Now I want to debug and track these files. I know that it is first to run Format.java with the arguments WORKER OR MASTER, and it is OK.  And what about next?
I ran TachyonMaster.java. But errors happened.The error message is as follows:

14/09/19 05:20:20 WARN : tachyon.home is not set. Using /mnt/tachyon_default_home as the default value.
14/09/19 05:20:20 INFO : Image /mnt/tachyon_default_home/journal/image.data does not exist.
14/09/19 05:20:20 INFO : Edit Log /mnt/tachyon_default_home/journal/log.data does not exist.
14/09/19 05:20:20 INFO : Creating the image file: /mnt/tachyon_default_home/journal/image.data.tmp
14/09/19 05:20:20 INFO : Succefully created the image file: /mnt/tachyon_default_home/journal/image.data.tmp
14/09/19 05:20:20 INFO : Renamed /mnt/tachyon_default_home/journal/image.data.tmp to /mnt/tachyon_default_home/journal/image.data
14/09/19 05:20:20 INFO : Creating edit log file /mnt/tachyon_default_home/journal/log.data
14/09/19 05:20:20 INFO : Created file /mnt/tachyon_default_home/journal/log.data
14/09/19 05:20:20 ERROR : Could not create ServerSocket on address localhost/127.0.0.1:19998.
org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/127.0.0.1:19998.
    at org.apache.thrift.transport.TNonblockingServerSocket.<init>(TNonblockingServerSocket.java:89)
    at org.apache.thrift.transport.TNonblockingServerSocket.<init>(TNonblockingServerSocket.java:72)
    at tachyon.master.TachyonMaster.setup(TachyonMaster.java:168)
    at tachyon.master.TachyonMaster.start(TachyonMaster.java:220)
    at tachyon.master.TachyonMaster.main(TachyonMaster.java:52)
14/09/19 05:20:20 ERROR : Could not create ServerSocket on address localhost/127.0.0.1:19998.
org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/127.0.0.1:19998.
    at org.apache.thrift.transport.TNonblockingServerSocket.<init>(TNonblockingServerSocket.java:89)
    at org.apache.thrift.transport.TNonblockingServerSocket.<init>(TNonblockingServerSocket.java:72)
    at tachyon.master.TachyonMaster.setup(TachyonMaster.java:168)
    at tachyon.master.TachyonMaster.start(TachyonMaster.java:220)
    at tachyon.master.TachyonMaster.main(TachyonMaster.java:52)
Exception in thread "main" java.lang.RuntimeException: org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/127.0.0.1:19998.
    at tachyon.util.CommonUtils.runtimeException(CommonUtils.java:475)
    at tachyon.master.TachyonMaster.start(TachyonMaster.java:226)
    at tachyon.master.TachyonMaster.main(TachyonMaster.java:52)
Caused by: org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/127.0.0.1:19998.
    at org.apache.thrift.transport.TNonblockingServerSocket.<init>(TNonblockingServerSocket.java:89)
    at org.apache.thrift.transport.TNonblockingServerSocket.<init>(TNonblockingServerSocket.java:72)
    at tachyon.master.TachyonMaster.setup(TachyonMaster.java:168)
    at tachyon.master.TachyonMaster.start(TachyonMaster.java:220)
    ... 1 more

[Henry Saputra]

Can you check with 'netstat -ban | grep tcp' to see if port 19998 is being used?

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[guanchao wen]

Thanks Henry Saputra.
Yes, you are right. I started the TachyonMaster twice, so the port 19998 was being used by the first TachyonMaster thread. Now I killed the TachyonMaster thread  and restarted to run TachyonMaster.java, it worked well.


在 2014年9月18日星期四UTC+8下午9时22分59秒，guanchao wen写道：

Caused by: org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/<span st

...

[guanchao wen]

I want to ask one more question. When I was running Format.java file, it worked well. But it showed the message that "tachyon.home is not set. Using /mnt/tachyon_default_home as the default value." In the source code of Tachyon ,where can I set the tachyon.home ? Thanks.

在 2014年9月18日星期四UTC+8下午9时22分59秒，guanchao wen写道：

Caused by: org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/<span st

...

[Haoyuan Li]

You can set it in conf/tachyon-env.sh .

Best,

Haoyuan

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Haoyuan Li

AMPLab, EECS, UC Berkeley

http://www.cs.berkeley.edu/~haoyuan/

[guanchao wen]

Thanks. Haoyuan.

在 2014年9月18日星期四UTC+8下午9时22分59秒，guanchao wen写道：

Caused by: org.apache.thrift.transport.TTransportException: Could not create ServerSocket on address localhost/<span st

...

[Haoyuan Li]

Is this solved? It seems a master address conf issue.

Haoyuan

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