Hi, I have upgraded cassndra from 0.8.6 to 1.0.10 and found following errors once i started service;

INFO 05:11:50,948 Logging initialized
INFO 05:11:50,953 JVM vendor/version: OpenJDK 64-Bit Server VM/1.6.0_24
INFO 05:11:50,954 Heap size: 511705088/511705088
INFO 05:11:50,955 Classpath: /opt/apache-cassandra-1.0.10/bin/../conf:/opt/apache-cassandra-1.0.10/bin/../build/classes/main:/opt/apache-cassandra-1.0.10/bin/../build/classes/thrift:/opt/apache-cassandra-1.0.10/bin/../lib/antlr-3.2.jar:/opt/apache-cassandra-1.0.10/bin/../lib/apache-cassandra-1.0.10.jar:/opt/apache-cassandra-1.0.10/bin/../lib/apache-cassandra-clientutil-1.0.10.jar:/opt/apache-cassandra-1.0.10/bin/../lib/apache-cassandra-thrift-1.0.10.jar:/opt/apache-cassandra-1.0.10/bin/../lib/avro-1.4.0-fixes.jar:/opt/apache-cassandra-1.0.10/bin/../lib/avro-1.4.0-sources-fixes.jar:/opt/apache-cassandra-1.0.10/bin/../lib/commons-cli-1.1.jar:/opt/apache-cassandra-1.0.10/bin/../lib/commons-codec-1.2.jar:/opt/apache-cassandra-1.0.10/bin/../lib/commons-lang-2.4.jar:/opt/apache-cassandra-1.0.10/bin/../lib/compress-lzf-0.8.4.jar:/opt/apache-cassandra-1.0.10/bin/../lib/concurrentlinkedhashmap-lru-1.2.jar:/opt/apache-cassandra-1.0.10/bin/../lib/guava-r08.jar:/opt/apache-cassandra-1.0.10/bin/../lib/high-scale-lib-1.1.2.j ar:/opt/apache-cassandra-1.0.10/bin/../lib/jackson-core-asl-1.4.0.jar:/opt/apache-cassandra-1.0.10/bin/../lib/jackson-mapper-asl-1.4.0.jar:/opt/apache-cassandra-1.0.10/bin/../lib/jamm-0.2.5.jar:/opt/apache-cassandra-1.0.10/bin/../lib/jline-0.9.94.jar:/opt/apache-cassandra-1.0.10/bin/../lib/json-simple-1.1.jar:/opt/apache-cassandra-1.0.10/bin/../lib/libthrift-0.6.jar:/opt/apache-cassandra-1.0.10/bin/../lib/log4j-1.2.16.jar:/opt/apache-cassandra-1.0.10/bin/../lib/servlet-api-2.5-20081211.jar:/opt/apache-cassandra-1.0.10/bin/../lib/slf4j-api-1.6.1.jar:/opt/apache-cassandra-1.0.10/bin/../lib/slf4j-log4j12-1.6.1.jar:/opt/apache-cassandra-1.0.10/bin/../lib/snakeyaml-1.6.jar:/opt/apache-cassandra-1.0.10/bin/../lib/snappy-java-1.0.4.1.jar
INFO 05:11:50,957 JNA not found. Native methods will be disabled.
INFO 05:11:50,966 Loading settings from file:/opt/apache-cassandra-1.0.10/conf/cassandra.yaml
ERROR 05:11:51,057 Fatal configuration error error
while scanning for the next token
found character         '\t' that cannot start any token
 in "<reader>", line 102, column 1:
          - seeds: "172.16.100.244,172. ...
    ^

        at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:357)
        at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:180)
        at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingValue.produce(ParserImpl.java:591)
        at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:162)
        at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:147)
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:131)
        at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:229)
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:159)
        at org.yaml.snakeyaml.composer.Composer.composeSequenceNode(Composer.java:203)
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:157)
        at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:229)
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:159)
        at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:121)
        at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:104)
        at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:117)
        at org.yaml.snakeyaml.Loader.load(Loader.java:52)
        at org.yaml.snakeyaml.Yaml.load(Yaml.java:166)
        at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:131)
        at org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:131)
        at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:356)
        at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:107)
while scanning for the next token; found character      '\t' that cannot start any token
Invalid yaml; unable to start server.  See log for stacktrace.


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Thanks & Regards

Adeel Akbar