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From Andy Cobley <acob...@computing.dundee.ac.uk>
Subject Re: SnappyCompressor and Cassandra 1.1.1
Date Mon, 02 Jul 2012 08:01:15 GMT
Thanks ,

Will give it a go now.

Andy

On 02/07/2012 08:13, "Sylvain Lebresne" <sylvain@datastax.com> wrote:

>Yeah, we tried to catch when Snappy couldn't load (and deactivate it
>when that happens) but apparently we've missed a few of the exceptions
>that can be thrown in that case. I've created
>https://issues.apache.org/jira/browse/CASSANDRA-4400 to fix that. If
>you could try the patch on that issue and check it works for you that
>would be awesome since I don't have a Raspberry Pi myself to test.
>
>--
>Sylvain
>
>On Sun, Jul 1, 2012 at 3:26 PM, Andy Cobley
><acobley@computing.dundee.ac.uk> wrote:
>> I'm running Cassandra on Raspberry Pi (for educational reason) and have
>>been successfully running 1.1.0 for some time.  However there is no
>>native build of SnappyCompressor for the platform (I'm currently working
>>n rectifying that if I can) so that compression is unavailable.  When I
>>try and start 1.1.1 on the platform I'm getting the following error
>>which looks to me like 1.1.1 is trying to load snappy compressor at
>>startup and falls over when to can't find it.  Thats not been the case
>>with 1.1.0:
>>
>> INFO 14:22:07,600 Global memtable threshold is enabled at 35MB
>> java.lang.reflect.InvocationTargetException
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at 
>>sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java
>>:57)
>>         at 
>>sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI
>>mpl.java:43)
>>         at java.lang.reflect.Method.invoke(Method.java:616)
>>         at 
>>org.xerial.snappy.SnappyLoader.loadNativeLibrary(SnappyLoader.java:317)
>>         at org.xerial.snappy.SnappyLoader.load(SnappyLoader.java:219)
>>         at org.xerial.snappy.Snappy.<clinit>(Snappy.java:44)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.create(SnappyCompressor
>>.java:45)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.isAvailable(SnappyCompr
>>essor.java:55)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.<clinit>(SnappyCompress
>>or.java:37)
>>         at 
>>org.apache.cassandra.config.CFMetaData.<clinit>(CFMetaData.java:76)
>>         at 
>>org.apache.cassandra.config.KSMetaData.systemKeyspace(KSMetaData.java:79)
>>         at 
>>org.apache.cassandra.config.DatabaseDescriptor.loadYaml(DatabaseDescripto
>>r.java:439)
>>         at 
>>org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescripto
>>r.java:118)
>>         at 
>>org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassan
>>draDaemon.java:126)
>>         at 
>>org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCas
>>sandraDaemon.java:353)
>>         at 
>>org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:106
>>)
>> Caused by: java.lang.UnsatisfiedLinkError: no snappyjava in
>>java.library.path
>>         at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1681)
>>         at java.lang.Runtime.loadLibrary0(Runtime.java:840)
>>         at java.lang.System.loadLibrary(System.java:1047)
>>         at 
>>org.xerial.snappy.SnappyNativeLoader.loadLibrary(SnappyNativeLoader.java:
>>52)
>>         ... 17 more
>> ERROR 14:22:09,934 Exception encountered during startup
>> org.xerial.snappy.SnappyError: [FAILED_TO_LOAD_NATIVE_LIBRARY] null
>>         at org.xerial.snappy.SnappyLoader.load(SnappyLoader.java:229)
>>         at org.xerial.snappy.Snappy.<clinit>(Snappy.java:44)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.create(SnappyCompressor
>>.java:45)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.isAvailable(SnappyCompr
>>essor.java:55)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.<clinit>(SnappyCompress
>>or.java:37)
>>         at 
>>org.apache.cassandra.config.CFMetaData.<clinit>(CFMetaData.java:76)
>>         at 
>>org.apache.cassandra.config.KSMetaData.systemKeyspace(KSMetaData.java:79)
>>         at 
>>org.apache.cassandra.config.DatabaseDescriptor.loadYaml(DatabaseDescripto
>>r.java:439)
>>         at 
>>org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescripto
>>r.java:118)
>>         at 
>>org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassan
>>draDaemon.java:126)
>>         at 
>>org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCas
>>sandraDaemon.java:353)
>>         at 
>>org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:106
>>)
>> org.xerial.snappy.SnappyError: [FAILED_TO_LOAD_NATIVE_LIBRARY] null
>>         at org.xerial.snappy.SnappyLoader.load(SnappyLoader.java:229)
>>         at org.xerial.snappy.Snappy.<clinit>(Snappy.java:44)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.create(SnappyCompressor
>>.java:45)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.isAvailable(SnappyCompr
>>essor.java:55)
>>         at 
>>org.apache.cassandra.io.compress.SnappyCompressor.<clinit>(SnappyCompress
>>or.java:37)
>>         at 
>>org.apache.cassandra.config.CFMetaData.<clinit>(CFMetaData.java:76)
>>         at 
>>org.apache.cassandra.config.KSMetaData.systemKeyspace(KSMetaData.java:79)
>>         at 
>>org.apache.cassandra.config.DatabaseDescriptor.loadYaml(DatabaseDescripto
>>r.java:439)
>>         at 
>>org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescripto
>>r.java:118)
>>         at 
>>org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassan
>>draDaemon.java:126)
>>         at 
>>org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCas
>>sandraDaemon.java:353)
>>         at 
>>org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:106
>>)
>> Exception encountered during startup: [FAILED_TO_LOAD_NATIVE_LIBRARY]
>>null
>>
>> Andy
>>
>>
>> The University of Dundee is a Scottish Registered Charity, No. SC015096.
>>
>>



The University of Dundee is a Scottish Registered Charity, No. SC015096.



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