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CommunityWatch is an open-source system that enables the detection of BGP anomalies and routing events by monitoring changes in the BGP Communities

Java 100.00%
bgp monitoring networking java-10 ixp

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communitiesparser's Issues

Debian stretch/Ubuntu 18.04: Couldn't reach URL / Trust anchors must be non-empty

When you run CommunitiesParser on Debian stretch or Ubuntu 18.04 it could happen that the following error appears:

Couldn't reach URL https://www.peeringdb.com/api/netfac

However the real reason is not displayed in the output. A deeper investigation shows that the real problem is the following:

java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty

That again is caused by a malformed local trusted keys store. And the reason why it is malformed is, that Debian stretch and Ubuntu 18.04 generate by default this trusted store in a file format which is only supported by newer versions of java.
It is not something that has to be fixed by CommunitiesParser, but can occur for some users depending on the OS and java version.

The matching bug report is here: https://bugs.launchpad.net/ubuntu/+source/ca-certificates-java/+bug/1739631

A workaround is basically to correctly generate this trusted store manually. There are many posts out there describing this. However a more extended and a good one is here:
https://stackoverflow.com/questions/6784463/error-trustanchors-parameter-must-be-non-empty

NoSuchElementException with README example

I tried to run CommunitiesParser with the example mentioned in README.md

CommunitiesParser/README.md

Lines 69 to 73 in 7c3f447

You can then execute the compiled code, including again the classpath to the jar files:
```
java -cp .:/<download_path>/args4j-2.33.jar:/<download_path>/json-simple-1.1.1.jar:/<download_path>/commons-compress-1.16.1.jar vgiotsas/Main --outdir output --collectors rrc00 --communities 2914:1201 --period 20180407.0000,20180410.0000 --facilities "Interxion Frankfurt (FRA1-12)"
```

However with this example an NoSuchElementException rises:

$ java -cp ./:./src/main/java/:/usr/share/java/args4j.jar:/usr/share/java/json-simple.jar:/usr/share/java/commons-compress.jar vgiotsas/Main --outdir output --collectors rrc00 --communities 2914:1201 --period 20180407.0000,20180410.0000 --facilities "Interxion Frankfurt (FRA1-12)"
Couldn't reach URL https://www.euro-ix.net/csv/ixp-service-matrix
java.io.FileNotFoundException: https://www.euro-ix.net/en/csv/ixp-service-matrix/
/usr/local/bin/bgpreader -w 1522965600,1523052000 -t ribs -P 86400 -c rrc00 -y 2914:1201
Annotated routes after initial pass: 31408
/usr/local/bin/bgpreader -w 1523052000,1523224800 -t ribs -c rrc00 -j 2a00:fda0::/32 -j  63.223.19.0/24 -j  193.105.241.0/24 -j  95.215.144.0/22 -j  104.90.192.0/23 -j  8$
.198.8.0/21 -j  204.93.58.0/24 -j  212.19.32.0/19 -j  185.212.173.0/24 -j  176.124.229.0/24 -j  185.130.177.0/24 -j  188.187.223.0/24 [… Truncated many other -j options]
Annotated routes after filtering: 31408
/usr/local/bin/bgpreader -w 1523224800,1523311200 -t updates -c rrc00 -j 2a00:fda0::/32 -j  63.223.19.0/24 -j  193.105.241.0/24 -j  95.215.144.0/22 -j  104.90.192.0/23 -j
82.198.8.0/21 -j  204.93.58.0/24 -j  212.19.32.0/19 -j  185.212.173.0/24 -j  176.124.229.0/24 [… Truncated many other -j options]
Exception in thread "main" java.util.NoSuchElementException
        at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1209)
        at java.util.TreeMap$KeyIterator.next(TreeMap.java:1265)
        at vgiotsas.CommunitiesParser.writeResults(CommunitiesParser.java:117)
        at vgiotsas.CommunitiesParser.startParser(CommunitiesParser.java:93)
        at vgiotsas.Main.main(Main.java:18)

java version "1.8.0_181" (TM) SE Runtime Environment (build 1.8.0_181-b13)
bgpstream 1.2.0
Debian stretch

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