Details
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Bug
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Status: Resolved
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Normal
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Resolution: Fixed
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None
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sun jdk 7
linux - ubuntu
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Normal
Description
Using CQLSSTableWriter gives ConcurrentModificationException
I'm trying to load many timeseries into cassandra 2.0.11-1
using 'org.apache.cassandra:cassandra-all:2.0.11'
java.util.ConcurrentModificationException
at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115)
at java.util.TreeMap$ValueIterator.next(TreeMap.java:1160)
at org.apache.cassandra.db.ColumnIndex$Builder.build(ColumnIndex.java:126)
at org.apache.cassandra.io.sstable.SSTableWriter.rawAppend(SSTableWriter.java:202)
at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:187)
at org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$DiskWriter.run(SSTableSimpleUnsortedWriter.java:215)
schema
CREATE TABLE test.sample (ts_id bigint, yr int, t timestamp, v double, tgs set<varchar>, PRIMARY KEY((ts_id,yr), t)) WITH CLUSTERING ORDER BY (t DESC) AND COMPRESSION = {'sstable_compression': 'LZ4Compressor'};
statement:
INSERT INTO test.sample(ts_id, yr, t, v) VALUES (?,?,?,?)
with .withBufferSizeInMB(128); it happens more than with
.withBufferSizeInMB(256);
code based on http://planetcassandra.org/blog/using-the-cassandra-bulk-loader-updated/
writer.addRow(tsId, year, new Date(time), value);
Any suggestions will be highly appreciated