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From "Alon Peer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-4209) Randomly getting "Invalid bytes remaining after an end-of-component at component1" exceptions
Date Wed, 02 May 2012 12:34:55 GMT
Alon Peer created CASSANDRA-4209:
------------------------------------

             Summary: Randomly getting "Invalid bytes remaining after an end-of-component
at component1" exceptions
                 Key: CASSANDRA-4209
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4209
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.0.9
         Environment: Linux version 2.6.21.7-2.fc8xen (mockbuild@xenbuilder4.fedora.phx.redhat.com)
            Reporter: Alon Peer


I have a CF with composite column sort:

{noformat}
ColumnFamily: MyCF
  Key Validation Class: org.apache.cassandra.db.marshal.UTF8Type
  Default column value validator: org.apache.cassandra.db.marshal.UTF8Type
  Columns sorted by: org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.AsciiType,org.apache.cassandra.db.marshal.IntegerType)
  Row cache size / save period in seconds / keys to save : 0.0/0/all
  Row Cache Provider: org.apache.cassandra.cache.SerializingCacheProvider
  Key cache size / save period in seconds: 200000.0/14400
  GC grace seconds: 864000
  Compaction min/max thresholds: 4/32
  Read repair chance: 0.1
  Replicate on write: true
  Bloom Filter FP chance: default
  Built indexes: []
  Compaction Strategy: org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy
  Compression Options:
    chunk_length_kb: 64
    sstable_compression: org.apache.cassandra.io.compress.SnappyCompressor
{noformat}

I'm using [phpcassa|https://github.com/thobbs/phpcassa] to communicate with my Cassandra cluster.

I'm getting the following exception from time to time while reading/writing to this CF:

{noformat}
exception 'cassandra_InvalidRequestException' with message
'Invalid bytes remaining after an end-of-component at component1' in /phpcassa/thrift/packages/cassandra/Cassandra.php:256\nStack
trace:
#0 /phpcassa/thrift/packages/cassandra/Cassandra.php(256): thrift_protocol_read_binary(Object(TBinaryProtocolAccelerated),
'cassandra_Cassa...', false)
#1 /phpcassa/thrift/packages/cassandra/Cassandra.php(229): CassandraClient->recv_get_slice()
#2 [internal function]: CassandraClient->get_slice('6034-28141406', Object(cassandra_ColumnParent),
Object(cassandra_SlicePredicate), 2)
...
{noformat}

I've thoroughly checked my code, I'm always sending the same parameters to Cassandra, and
there's no format error. My column name request is always AsciiType:IntegerType.

The weird part is that this is completely random. If I run a get() query once, I get the exception,
but the following request with the same parameters succeeds.

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