Serban Teodorescu created CASSANDRA-16349:
---------------------------------------------
Summary: SSTableLoader reports error when SSTable(s) do not have
data for some nodes
Key: CASSANDRA-16349
URL: https://issues.apache.org/jira/browse/CASSANDRA-16349
Project: Cassandra
Issue Type: Bug
Components: Tool/sstable
Reporter: Serban Teodorescu
Assignee: Serban Teodorescu
Running SSTableLoader in verbose mode will show error(s) if there are node(s)
that do not own any data from the SSTable(s). This can happen in at least 2
cases:
# SSTableLoader is used to stream backups while keeping the same token ranges
# SSTable(s) are created with CQLSSTableWriter to match token ranges (this can
bring better performance by using ZeroCopy streaming)
Partial output of the SSTableLoader:
{quote}ERROR 02:47:47,842 [Stream #fa8e73b0-3da5-11eb-9c47-c5d27ae8fe47] Remote
peer /127.0.0.4:7000 failed stream session.
ERROR 02:47:47,842 [Stream #fa8e73b0-3da5-11eb-9c47-c5d27ae8fe47] Remote peer
/127.0.0.3:7000 failed stream session.
progress: [/127.0.0.4:7000]0:0/1 100% [/127.0.0.3:7000]0:0/1 100%
[/127.0.0.2:7000]0:7/7 100% [/127.0.0.1:7000]0:7/7 100% total: 100% 0.000KiB/s
(avg: 1.611KiB/s)
progress: [/127.0.0.4:7000]0:0/1 100% [/127.0.0.3:7000]0:0/1 100%
[/127.0.0.2:7000]0:7/7 100% [/127.0.0.1:7000]0:7/7 100% total: 100% 0.000KiB/s
(avg: 1.611KiB/s)
progress: [/127.0.0.4:7000]0:0/1 100% [/127.0.0.3:7000]0:0/1 100%
[/127.0.0.2:7000]0:7/7 100% [/127.0.0.1:7000]0:7/7 100% total: 100% 0.000KiB/s
(avg: 1.515KiB/s)
progress: [/127.0.0.4:7000]0:0/1 100% [/127.0.0.3:7000]0:0/1 100%
[/127.0.0.2:7000]0:7/7 100% [/127.0.0.1:7000]0:7/7 100% total: 100% 0.000KiB/s
(avg: 1.427KiB/s)
{quote}
Stack trace:
{quote}java.util.concurrent.ExecutionException:
org.apache.cassandra.streaming.StreamException: Stream failed
at
com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:552)
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:533)
at org.apache.cassandra.tools.BulkLoader.load(BulkLoader.java:99)
at org.apache.cassandra.tools.BulkLoader.main(BulkLoader.java:49)
Caused by: org.apache.cassandra.streaming.StreamException: Stream failed
at
org.apache.cassandra.streaming.management.StreamEventJMXNotifier.onFailure(StreamEventJMXNotifier.java:88)
at
com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1056)
at
com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
at
com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1138)
at
com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:958)
at
com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:748)
at
org.apache.cassandra.streaming.StreamResultFuture.maybeComplete(StreamResultFuture.java:220)
at
org.apache.cassandra.streaming.StreamResultFuture.handleSessionComplete(StreamResultFuture.java:196)
at
org.apache.cassandra.streaming.StreamSession.closeSession(StreamSession.java:505)
at org.apache.cassandra.streaming.StreamSession.complete(StreamSession.java:819)
at
org.apache.cassandra.streaming.StreamSession.messageReceived(StreamSession.java:595)
at
org.apache.cassandra.streaming.async.StreamingInboundHandler$StreamDeserializingTask.run(StreamingInboundHandler.java:189)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:844)
{quote}
To reproduce create a cluster with ccm with more nodes than the RF, put some
data into it copy a SSTable and stream it.
The error originates on the nodes, the following stack trace is shown in the
logs:
{quote}java.lang.IllegalStateException: Stream hasn't been read yet
at
com.google.common.base.Preconditions.checkState(Preconditions.java:507)
at
org.apache.cassandra.db.streaming.CassandraIncomingFile.getSize(CassandraIncomingFile.java:96)
at
org.apache.cassandra.streaming.StreamSession.receive(StreamSession.java:789)
at
org.apache.cassandra.streaming.StreamSession.messageReceived(StreamSession.java:587)
at
org.apache.cassandra.streaming.async.StreamingInboundHandler$StreamDeserializingTask.run(StreamingInboundHandler.java:189)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:844)
{quote}
An error is thrown due to stream size being read before any data was received.
The solution would be not to stream this at all; SSTableLoader.java already
looks into each SSTable to determine what parts of it will map to each node
token ranges.
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