No. And if we did it would be a bad idea: good ops practice is to _minimize_ variability.
On Wed, Jun 2, 2010 at 3:18 AM, David Boxenhorn <da...@lookin2.com> wrote: > 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: > > > > [r...@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. > > [r...@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 [] > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
