Is it possible to make a heterogeneous Cassandra cluster, with both Linux and Windows nodes? I tried doing it and got

Error in ThreadPoolExecutor
java.lang.NullPointerException

Not sure if this is due to the Linux/Windows mix or something else.


Details below:



[root@IQDEV01 cassandra]# bin/cassandra -f

 INFO 20:32:26,431 Auto DiskAccessMode determined to be mmap

 INFO 20:32:27,085 Sampling index for /var/lib/cassandra/data/system/LocationInfo-1-Data.db

 INFO 20:32:27,095 Sampling index for /var/lib/cassandra/data/system/LocationInfo-2-Data.db

 INFO 20:32:27,104 Replaying /var/lib/cassandra/commitlog/CommitLog-1275412410865.log

 INFO 20:32:27,129 Creating new commitlog segment /var/lib/cassandra/commitlog/CommitLog-1275413547129.log

 INFO 20:32:27,138 LocationInfo has reached its threshold; switching in a fresh Memtable at CommitLogContext(file='/var/lib/cassandra/commitlog/CommitLog-1275413547129.log', position=173)

 INFO 20:32:27,138 Enqueuing flush of Memtable(LocationInfo)@1491010616

 INFO 20:32:27,139 Writing Memtable(LocationInfo)@1491010616

 INFO 20:32:27,187 Completed flushing /var/lib/cassandra/data/system/LocationInfo-3-Data.db

 INFO 20:32:27,207 Log replay complete

 INFO 20:32:27,239 Saved Token found: 25870423804996813139937576731363583348

 INFO 20:32:27,239 Saved ClusterName found: Lookin2

 INFO 20:32:27,247 Starting up server gossip

 INFO 20:32:27,266 Joining: getting load information

 INFO 20:32:27,267 Sleeping 90000 ms to wait for load information...

 INFO 20:32:27,327 Node /192.168.80.12 is now part of the cluster

 INFO 20:32:27,332 Node /192.168.80.234 is now part of the cluster

 INFO 20:32:27,864 InetAddress /192.168.80.12 is now UP

 INFO 20:32:27,872 InetAddress /192.168.80.234 is now UP

 INFO 20:33:57,269 Joining: getting bootstrap token

 INFO 20:33:57,278 New token will be 25870423804996813139937576731363583348 to assume load from /192.168.80.12

 INFO 20:33:57,279 Joining: sleeping 30000 for pending range setup

 INFO 20:34:27,280 Bootstrapping

 INFO 21:32:27,867 Compacting []

 INFO 21:38:27,118 LocationInfo has reached its threshold; switching in a fresh Memtable at CommitLogContext(file='/var/lib/cassandra/commitlog/CommitLog-1275413547129.log', position=824)

 INFO 21:38:27,118 Enqueuing flush of Memtable(LocationInfo)@993374707

 INFO 21:38:27,118 Writing Memtable(LocationInfo)@993374707

 INFO 21:38:27,158 Completed flushing /var/lib/cassandra/data/system/LocationInfo-4-Data.db

 INFO 21:38:27,160 Compacting [org.apache.cassandra.io.SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-1-Data.db'),org.apache.cassandra.io.SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-2-Data.db'),org.apache.cassandra.io.SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-3-Data.db'),org.apache.cassandra.io.SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-4-Data.db')]

 INFO 21:38:27,217 Compacted to /var/lib/cassandra/data/system/LocationInfo-5-Data.db.  1294/358 bytes for 1 keys.  Time: 56ms.

[root@IQDEV01 cassandra]# bin/cassandra -f

 INFO 21:40:07,519 Auto DiskAccessMode determined to be mmap

 INFO 21:40:07,972 Deleted /var/lib/cassandra/data/system/LocationInfo-1-Data.db

 INFO 21:40:07,973 Deleted /var/lib/cassandra/data/system/LocationInfo-2-Data.db

 INFO 21:40:07,974 Deleted /var/lib/cassandra/data/system/LocationInfo-3-Data.db

 INFO 21:40:07,982 Sampling index for /var/lib/cassandra/data/system/LocationInfo-5-Data.db

 INFO 21:40:07,991 Deleted /var/lib/cassandra/data/system/LocationInfo-4-Data.db

 INFO 21:40:08,000 Replaying /var/lib/cassandra/commitlog/CommitLog-1275413547129.log

 INFO 21:40:08,001 Log replay complete

 INFO 21:40:08,038 Saved Token found: 25870423804996813139937576731363583348

 INFO 21:40:08,040 Saved ClusterName found: Lookin2

 INFO 21:40:08,042 Creating new commitlog segment /var/lib/cassandra/commitlog/CommitLog-1275417608042.log

 INFO 21:40:08,059 Starting up server gossip

 INFO 21:40:08,071 Joining: getting load information

 INFO 21:40:08,071 Sleeping 90000 ms to wait for load information...

 INFO 21:40:10,372 Node /192.168.80.12 is now part of the cluster

 INFO 21:40:10,374 Node /192.168.80.234 is now part of the cluster

 INFO 21:40:11,091 InetAddress /192.168.80.234 is now UP

 INFO 21:40:12,078 InetAddress /192.168.80.12 is now UP

 INFO 21:41:38,072 Joining: getting bootstrap token

 INFO 21:41:38,088 New token will be 25870423804996813139937576731363583348 to assume load from /192.168.80.12

 INFO 21:41:38,089 Joining: sleeping 30000 for pending range setup

 INFO 21:42:08,091 Bootstrapping

ERROR 21:49:03,526 Error in ThreadPoolExecutor

java.lang.NullPointerException

        at org.apache.cassandra.streaming.StreamInitiateVerbHandler.getNewNames(StreamInitiateVerbHandler.java:154)

        at org.apache.cassandra.streaming.StreamInitiateVerbHandler.doVerb(StreamInitiateVerbHandler.java:76)

        at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:40)

        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

        at java.lang.Thread.run(Thread.java:619)

ERROR 21:49:03,527 Fatal exception in thread Thread[MESSAGE-DESERIALIZER-POOL:1,5,main]

java.lang.NullPointerException

        at org.apache.cassandra.streaming.StreamInitiateVerbHandler.getNewNames(StreamInitiateVerbHandler.java:154)

        at org.apache.cassandra.streaming.StreamInitiateVerbHandler.doVerb(StreamInitiateVerbHandler.java:76)

        at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:40)

        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

        at java.lang.Thread.run(Thread.java:619)

 INFO 22:40:08,015 LocationInfo has reached its threshold; switching in a fresh Memtable at CommitLogContext(file='/var/lib/cassandra/commitlog/CommitLog-1275417608042.log', position=824)

 INFO 22:40:08,016 Enqueuing flush of Memtable(LocationInfo)@925668695

 INFO 22:40:08,017 Writing Memtable(LocationInfo)@925668695

 INFO 22:40:08,058 Completed flushing /var/lib/cassandra/data/system/LocationInfo-6-Data.db

 INFO 22:40:11,100 Compacting []