No need to cc dev@, user@ is the right list for this question.
As Jon mentioned, you can’t stream (bootstrap/rebuild/repair) across major
versions, so don’t try to destroy the cluster – just upgrade in place. It IS a
good idea to do one DC at a time, but an in-place upgrade is pretty
straightforward – flush, drain, stop Cassandra, replace binaries, start
Cassandra, run nodetool upgradesstables -a.
Note that you can run nodetool upgradesstables on more than one node at a time
if you can tolerate the hit to your read latencies.
It IS common, I imagine, for there to be schema mismatches temporarily while
you have a mixed version cluster – this isn’t necessarily a huge problem, but
do try to get to 3.0.8 as quickly as possible once you start, and if you can
avoid administrative tasks (such as those that will change the schema) during
the process, that’s generally advisable.
From: Abhishek Verma <ve...@uber.com>
Reply-To: "user@cassandra.apache.org" <user@cassandra.apache.org>
Date: Monday, October 10, 2016 at 4:34 PM
To: "user@cassandra.apache.org" <user@cassandra.apache.org>,
"d...@cassandra.apache.org" <d...@cassandra.apache.org>
Subject: Bootstrapping data from Cassandra 2.2.5 datacenter to 3.0.8 datacenter
fails because of streaming errors
Hi Cassandra users,
We are trying to upgrade our Cassandra version from 2.2.5 to 3.0.8 (running on
Mesos, but that's besides the point). We have two datacenters, so in order to
preserve our data, we are trying to upgrade one datacenter at a time.
Initially both DCs (dc1 and dc2) are running 2.2.5. The idea is to tear down
dc1 completely (delete all the data in it), bring it up with 3.0.8, let data
replicate from dc2 to dc1, and then tear down dc2, bring it up with 3.0.8 and
replicate data from dc1.
I am able to reproduce the problem on bare metal clusters running on 3 nodes. I
am using Oracle's server-jre-8u74-linux-x64 JRE.
Node A: Downloaded 2.2.5-bin.tar.gz, changed the seeds to include its own IP
address, changed listen_address and rpc_address to its own IP and changed
endpoint_snitch to GossipingPropertyFileSnitch. I changed
conf/cassandra-rackdc.properties to
dc=dc2
rack=rack2
This node started up fine and is UN in nodetool status in dc2.
I used CQL shell to create a table and insert 3 rows:
verma@xxxxx:~/apache-cassandra-2.2.5$ bin/cqlsh $HOSTNAME
Connected to Test Cluster at xxxxx:9042.
[cqlsh 5.0.1 | Cassandra 2.2.5 | CQL spec 3.3.1 | Native protocol v4]
Use HELP for help.
cqlsh> desc tmp
CREATE KEYSPACE tmp WITH replication = {'class': 'NetworkTopologyStrategy',
'dc1': '1', 'dc2': '1'} AND durable_writes = true;
CREATE TABLE tmp.map (
key text PRIMARY KEY,
value text
)...;
cqlsh> select * from tmp.map;
key | value
-----+-------
k1 | v1
k3 | v3
k2 | v2
Node B: Downloaded 3.0.8-bin.tar.gz, changed the seeds to include itself and
node A, changed listen_address and rpc_address to its own IP, changed
endpoint_snitch to GossipingPropertyFileSnitch. I did not change
conf/cassandra-rackdc.properties and its contents are
dc=dc1
rack=rack1
In the logs, I see:
INFO [main] 2016-10-10 22:42:42,850 MessagingService.java:557 - Starting
Messaging Service on /10.164.32.29:7000 (eth0)
INFO [main] 2016-10-10 22:42:42,864 StorageService.java:784 - This node will
not auto bootstrap because it is configured to be a seed node.
So I start a third node:
Node C: Downloaded 3.0.8-bin.tar.gz, changed the seeds to include node A and
node B, changed listen_address and rpc_address to its own IP, changed
endpoint_snitch to GossipingPropertyFileSnitch. I did not change
conf/cassandra-rackdc.properties.
Now, nodetool status shows:
verma@xxxxxxx:~/apache-cassandra-3.0.8$ bin/nodetool status
Datacenter: dc1
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID
Rack
UJ <Node C IP> 87.81 KB 256 ?
9064832d-ed5c-4c42-ad5a-f754b52b670c rack1
UN <Node B IP> 107.72 KB 256 100.0%
28b1043f-115b-46a5-b6b6-8609829cde76 rack1
Datacenter: dc2
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID
Rack
UN <Node A IP> 73.2 KB 256 100.0%
09cc542c-2299-45a5-a4d1-159c239ded37 rack2
Nodetool describe cluster shows:
verma@xxxxxxx:~/apache-cassandra-3.0.8$ bin/nodetool describecluster
Cluster Information:
Name: Test Cluster
Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
Schema versions:
c2a2bb4f-7d31-3fb8-a216-00b41a643650: [<Node B IP>, <Node C IP>]
9770e3c5-3135-32e2-b761-65a0f6d8824e: [<Node A IP>]
Note that there are two schema versions and they don't match.
I see the following in the system.log:
INFO [InternalResponseStage:1] 2016-10-10 22:48:36,055
ColumnFamilyStore.java:390 - Initializing system_auth.roles
INFO [main] 2016-10-10 22:48:36,316 StorageService.java:1149 - JOINING:
waiting for schema information to complete
INFO [main] 2016-10-10 22:48:36,316 StorageService.java:1149 - JOINING: schema
complete, ready to bootstrap
INFO [main] 2016-10-10 22:48:36,316 StorageService.java:1149 - JOINING:
waiting for pending range calculation
INFO [main] 2016-10-10 22:48:36,317 StorageService.java:1149 - JOINING:
calculation complete, ready to bootstrap
INFO [main] 2016-10-10 22:48:36,319 StorageService.java:1149 - JOINING:
getting bootstrap token
INFO [main] 2016-10-10 22:48:36,357 StorageService.java:1149 - JOINING:
sleeping 30000 ms for pending range setup
INFO [main] 2016-10-10 22:49:06,358 StorageService.java:1149 - JOINING:
Starting to bootstrap...
INFO [main] 2016-10-10 22:49:06,494 StreamResultFuture.java:87 - [Stream
#bfb5e470-8f3b-11e6-b69a-1b451159408e] Executing streaming plan for Bootstrap
INFO [StreamConnectionEstablisher:1] 2016-10-10 22:49:06,495
StreamSession.java:242 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e]
Starting streaming to /<Node A IP>
INFO [StreamConnectionEstablisher:2] 2016-10-10 22:49:06,495
StreamSession.java:242 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e]
Starting streaming to /<Node B IP>
INFO [StreamConnectionEstablisher:2] 2016-10-10 22:49:06,500
StreamCoordinator.java:213 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e,
ID#0] Beginning stream session with /<Node B IP>
INFO [STREAM-IN-/<Node B IP>] 2016-10-10 22:49:06,590
StreamResultFuture.java:183 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e]
Session with /<Node B IP> is complete
INFO [StreamConnectionEstablisher:1] 2016-10-10 22:49:06,635
StreamCoordinator.java:213 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e,
ID#0] Beginning stream session with /<Node A IP>
ERROR [STREAM-IN-/<Node A IP>] 2016-10-10 22:49:06,639 StreamSession.java:528 -
[Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e] Streaming error occurred
java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.read0(Native Method) ~[na:1.8.0_102]
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) ~[na:1.8.0_102]
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[na:1.8.0_102]
at sun.nio.ch.IOUtil.read(IOUtil.java:197) ~[na:1.8.0_102]
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[na:1.8.0_102]
at sun.nio.ch.SocketAdaptor$SocketInputStream.read(SocketAdaptor.java:206)
~[na:1.8.0_102]
at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:103)
~[na:1.8.0_102]
at java.nio.channels.Channels$ReadableByteChannelImpl.read(Channels.java:385)
~[na:1.8.0_102]
at
org.apache.cassandra.streaming.messages.StreamMessage.deserialize(StreamMessage.java:54)
~[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.ConnectionHandler$IncomingMessageHandler.run(ConnectionHandler.java:287)
~[apache-cassandra-3.0.8.jar:3.0.8]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102]
INFO [STREAM-IN-/<Node A IP>] 2016-10-10 22:49:06,639
StreamResultFuture.java:183 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e]
Session with /<Node A IP> is complete
WARN [STREAM-IN-/<Node A IP>] 2016-10-10 22:49:06,640
StreamResultFuture.java:210 - [Stream #bfb5e470-8f3b-11e6-b69a-1b451159408e]
Stream failed
WARN [STREAM-IN-/<Node A IP>] 2016-10-10 22:49:06,640 StorageService.java:1208
- Error during bootstrap.
org.apache.cassandra.streaming.StreamException: Stream failed
at
org.apache.cassandra.streaming.management.StreamEventJMXNotifier.onFailure(StreamEventJMXNotifier.java:85)
~[apache-cassandra-3.0.8.jar:3.0.8]
at com.google.common.util.concurrent.Futures$6.run(Futures.java:1310)
[guava-18.0.jar:na]
at
com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:457)
[guava-18.0.jar:na]
at
com.google.common.util.concurrent.ExecutionList.executeListener(ExecutionList.java:156)
[guava-18.0.jar:na]
at
com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:145)
[guava-18.0.jar:na]
at
com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:202)
[guava-18.0.jar:na]
at
org.apache.cassandra.streaming.StreamResultFuture.maybeComplete(StreamResultFuture.java:211)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.StreamResultFuture.handleSessionComplete(StreamResultFuture.java:187)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.StreamSession.closeSession(StreamSession.java:429)
[apache-cassandra-3.0.8.jar:3.0.8]
at org.apache.cassandra.streaming.StreamSession.onError(StreamSession.java:534)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.ConnectionHandler$IncomingMessageHandler.run(ConnectionHandler.java:305)
[apache-cassandra-3.0.8.jar:3.0.8]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102]
ERROR [main] 2016-10-10 22:49:06,641 StorageService.java:1218 - Error while
waiting on bootstrap to complete. Bootstrap will have to be restarted.
java.util.concurrent.ExecutionException:
org.apache.cassandra.streaming.StreamException: Stream failed
at
com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:299)
~[guava-18.0.jar:na]
at
com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:286)
~[guava-18.0.jar:na]
at
com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116)
~[guava-18.0.jar:na]
at
org.apache.cassandra.service.StorageService.bootstrap(StorageService.java:1213)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.service.StorageService.joinTokenRing(StorageService.java:889)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:663)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:528)
[apache-cassandra-3.0.8.jar:3.0.8]
at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:339)
[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:557)
[apache-cassandra-3.0.8.jar:3.0.8]
at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:685)
[apache-cassandra-3.0.8.jar:3.0.8]
Caused by: org.apache.cassandra.streaming.StreamException: Stream failed
at
org.apache.cassandra.streaming.management.StreamEventJMXNotifier.onFailure(StreamEventJMXNotifier.java:85)
~[apache-cassandra-3.0.8.jar:3.0.8]
at com.google.common.util.concurrent.Futures$6.run(Futures.java:1310)
~[guava-18.0.jar:na]
at
com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:457)
~[guava-18.0.jar:na]
at
com.google.common.util.concurrent.ExecutionList.executeListener(ExecutionList.java:156)
~[guava-18.0.jar:na]
at
com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:145)
~[guava-18.0.jar:na]
at
com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:202)
~[guava-18.0.jar:na]
at
org.apache.cassandra.streaming.StreamResultFuture.maybeComplete(StreamResultFuture.java:211)
~[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.StreamResultFuture.handleSessionComplete(StreamResultFuture.java:187)
~[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.StreamSession.closeSession(StreamSession.java:429)
~[apache-cassandra-3.0.8.jar:3.0.8]
at org.apache.cassandra.streaming.StreamSession.onError(StreamSession.java:534)
~[apache-cassandra-3.0.8.jar:3.0.8]
at
org.apache.cassandra.streaming.ConnectionHandler$IncomingMessageHandler.run(ConnectionHandler.java:305)
~[apache-cassandra-3.0.8.jar:3.0.8]
at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_102]
WARN [main] 2016-10-10 22:49:06,646 StorageService.java:944 - Some data
streaming failed. Use nodetool to check bootstrap state and resume. For more,
see `nodetool help bootstrap`. IN_PROGRESS
INFO [main] 2016-10-10 22:49:06,647 CassandraDaemon.java:644 - Waiting for
gossip to settle before accepting client requests...
INFO [main] 2016-10-10 22:49:14,648 CassandraDaemon.java:675 - No gossip
backlog; proceeding
INFO [main] 2016-10-10 22:49:14,694 NativeTransportService.java:70 - Netty
using native Epoll event loop
INFO [main] 2016-10-10 22:49:14,726 Server.java:159 - Using Netty Version:
[netty-buffer=netty-buffer-4.0.23.Final.208198c,
netty-codec=netty-codec-4.0.23.Final.208198c,
netty-codec-http=netty-codec-http-4.0.23.Final.208198c,
netty-codec-socks=netty-codec-socks-4.0.23.Final.208198c,
netty-common=netty-common-4.0.23.Final.208198c,
netty-handler=netty-handler-4.0.23.Final.208198c,
netty-transport=netty-transport-4.0.23.Final.208198c,
netty-transport-rxtx=netty-transport-rxtx-4.0.23.Final.208198c,
netty-transport-sctp=netty-transport-sctp-4.0.23.Final.208198c,
netty-transport-udt=netty-transport-udt-4.0.23.Final.208198c]
INFO [main] 2016-10-10 22:49:14,726 Server.java:160 - Starting listening for
CQL clients on /<Node C IP>:9042 (unencrypted)...
INFO [main] 2016-10-10 22:49:14,748 CassandraDaemon.java:477 - Not starting
RPC server as requested. Use JMX (StorageService->startRPCServer()) or nodetool
(enablethrift) to start it
I tried resuming bootstrap but it fails with the same streaming errors:
verma@<Node C>:~/apache-cassandra-3.0.8$ bin/nodetool bootstrap resume
Resuming bootstrap
[2016-10-10 23:15:11,816] session with /<Node B IP> complete (progress: 0%)
[2016-10-10 23:15:11,939] session with /<Node A IP> complete (progress: 0%)
[2016-10-10 23:15:11,940] Stream failed
and I see the same error in the system.log:
StreamSession.java:528 - [Stream #64b73a20-8f3f-11e6-b69a-1b451159408e]
Streaming error occurred
java.io.IOException: Connection reset by peer
...
Does Cassandra support upgrading from 2.2.5 to 3.0.8 in this way? Am I missing
something?
Thanks for your time.
-Abhishek.
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