oke, i just imported ONLY the article_attachment table.
same result.
except, that this time it crashes with signal 11, not 6.

with the last tests i was always running the "cluster" in bootstrap-pxc mode ....

-----------

first try: 20446 rows   (AND the following log)


2014-01-10 14:47:48 2502 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000000 of size 134217728 bytes
2014-01-10 14:47:49 2502 [Note] WSREP: Deleted page /var/lib/mysql/gcache.page.000000
13:48:00 UTC - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
Please help us make Percona XtraDB Cluster better by reporting any
bugs at https://bugs.launchpad.net/percona-xtradb-cluster

key_buffer_size=268435456
read_buffer_size=268435456
max_used_connections=3
max_threads=252
thread_count=3
connection_count=3
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 198446771 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x9568f70
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 7f90b0125e00 thread_stack 0x80000
/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x8e91ae]
/usr/sbin/mysqld(handle_fatal_signal+0x4a4)[0x68c1e4]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7f90dbc3bcb0]
/usr/lib/libgalera_smm.so(_ZNSt3tr110_HashtableIPN6galera10KeyEntryNGES3_SaIS3_ESt9_IdentityIS3_ENS1_18KeyEntryPtrEqualNGENS1_17KeyEntryPtrHashNGENS_8__detail18_Mod_range_hashingENS9_20_Default_ranged_hashENS9_20_Prime_rehash_policyELb0ELb1ELb1EE4findERKS3_+0x51)[0x7f90bcadac31]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification10do_test_v3EPNS_9TrxHandleEb+0x18d)[0x7f90bcad731d]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification7do_testEPNS_9TrxHandleEb+0x3ef)[0x7f90bcad986f]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification4testEPNS_9TrxHandleEb+0x28)[0x7f90bcad9cc8]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification10append_trxEPNS_9TrxHandleE+0xcc)[0x7f90bcad9dac]
/usr/lib/libgalera_smm.so(_ZN6galera13ReplicatorSMM4certEPNS_9TrxHandleE+0x88)[0x7f90bcb03ee8]
/usr/lib/libgalera_smm.so(_ZN6galera13ReplicatorSMM10pre_commitEPNS_9TrxHandleEP14wsrep_trx_meta+0x59)[0x7f90bcb053e9]
/usr/lib/libgalera_smm.so(galera_pre_commit+0x140)[0x7f90bcb1ce30]
/usr/sbin/mysqld(_Z22wsrep_run_wsrep_commitP3THDP10handlertonb+0xa17)[0x7ac1e7]
/usr/sbin/mysqld[0x7acd2b]
/usr/sbin/mysqld(_Z14ha_prepare_lowP3THDb+0x87)[0x5de227]
/usr/sbin/mysqld(_Z15ha_commit_transP3THDbb+0x17a)[0x5dd38a]
/usr/sbin/mysqld(_Z17trans_commit_stmtP3THD+0x37)[0x791d67]
/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x97c)[0x70639c]
/usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x5f8)[0x70d678]
/usr/sbin/mysqld[0x70def8]
/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x192f)[0x70fe7f]
/usr/sbin/mysqld(_Z10do_commandP3THD+0x1db)[0x71175b]
/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x16f)[0x6dcd6f]
/usr/sbin/mysqld(handle_one_connection+0x47)[0x6dcf27]
/usr/sbin/mysqld(pfs_spawn_thread+0x143)[0x923493]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f90dbc33e9a]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f90db14e3fd]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7f8f5c791390): is an invalid pointer
Connection ID (thread ID): 6
Status: NOT_KILLED


------------------------------

second try: 20445 rows   (AND the following log)   -> one less then in try 1

2014-01-10 14:55:40 3955 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000000 of size 134217728 bytes
2014-01-10 14:55:40 3955 [Note] WSREP: Deleted page /var/lib/mysql/gcache.page.000000
13:55:52 UTC - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
Please help us make Percona XtraDB Cluster better by reporting any
bugs at https://bugs.launchpad.net/percona-xtradb-cluster

key_buffer_size=268435456
read_buffer_size=268435456
max_used_connections=4
max_threads=252
thread_count=4
connection_count=4
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 198446771 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x86828a0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 7fac7cd74e00 thread_stack 0x80000
/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x8e91ae]
/usr/sbin/mysqld(handle_fatal_signal+0x4a4)[0x68c1e4]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7fade69d2cb0]
/usr/lib/libgalera_smm.so(_ZNSt3tr110_HashtableIPN6galera10KeyEntryNGES3_SaIS3_ESt9_IdentityIS3_ENS1_18KeyEntryPtrEqualNGENS1_17KeyEntryPtrHashNGENS_8__detail18_Mod_range_hashingENS9_20_Default_ranged_hashENS9_20_Prime_rehash_policyELb0ELb1ELb1EE4findERKS3_+0x51)[0x7fade4687c31]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification10do_test_v3EPNS_9TrxHandleEb+0x18d)[0x7fade468431d]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification7do_testEPNS_9TrxHandleEb+0x3ef)[0x7fade468686f]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification4testEPNS_9TrxHandleEb+0x28)[0x7fade4686cc8]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification10append_trxEPNS_9TrxHandleE+0xcc)[0x7fade4686dac]
/usr/lib/libgalera_smm.so(_ZN6galera13ReplicatorSMM4certEPNS_9TrxHandleE+0x88)[0x7fade46b0ee8]
/usr/lib/libgalera_smm.so(_ZN6galera13ReplicatorSMM10pre_commitEPNS_9TrxHandleEP14wsrep_trx_meta+0x59)[0x7fade46b23e9]
/usr/lib/libgalera_smm.so(galera_pre_commit+0x140)[0x7fade46c9e30]
/usr/sbin/mysqld(_Z22wsrep_run_wsrep_commitP3THDP10handlertonb+0xa17)[0x7ac1e7]
/usr/sbin/mysqld[0x7acd2b]
/usr/sbin/mysqld(_Z14ha_prepare_lowP3THDb+0x87)[0x5de227]
/usr/sbin/mysqld(_Z15ha_commit_transP3THDbb+0x17a)[0x5dd38a]
/usr/sbin/mysqld(_Z17trans_commit_stmtP3THD+0x37)[0x791d67]
/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x97c)[0x70639c]
/usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x5f8)[0x70d678]
/usr/sbin/mysqld[0x70def8]
/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x192f)[0x70fe7f]
/usr/sbin/mysqld(_Z10do_commandP3THD+0x1db)[0x71175b]
/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x16f)[0x6dcd6f]
/usr/sbin/mysqld(handle_one_connection+0x47)[0x6dcf27]
/usr/sbin/mysqld(pfs_spawn_thread+0x143)[0x923493]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7fade69cae9a]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7fade5ee53fd]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7fac60902890): is an invalid pointer
Connection ID (thread ID): 14
Status: NOT_KILLED


------------------------------

third try: 20445 rows   (AND the following log)   -> one less then in try 1, same as in try 2


2014-01-10 15:02:40 5311 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000000 of size 134217728 bytes
2014-01-10 15:02:40 5311 [Note] WSREP: Deleted page /var/lib/mysql/gcache.page.000000
14:02:50 UTC - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
Please help us make Percona XtraDB Cluster better by reporting any
bugs at https://bugs.launchpad.net/percona-xtradb-cluster

key_buffer_size=268435456
read_buffer_size=268435456
max_used_connections=3
max_threads=252
thread_count=3
connection_count=3
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 198446771 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x8dfe690
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 7f17741b0e00 thread_stack 0x80000
/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x8e91ae]
/usr/sbin/mysqld(handle_fatal_signal+0x4a4)[0x68c1e4]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7f179fe74cb0]
/usr/lib/libgalera_smm.so(_ZNSt3tr110_HashtableIPN6galera10KeyEntryNGES3_SaIS3_ESt9_IdentityIS3_ENS1_18KeyEntryPtrEqualNGENS1_17KeyEntryPtrHashNGENS_8__detail18_Mod_range_hashingENS9_20_Default_ranged_hashENS9_20_Prime_rehash_policyELb0ELb1ELb1EE4findERKS3_+0x51)[0x7f1780ce6c31]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification10do_test_v3EPNS_9TrxHandleEb+0x18d)[0x7f1780ce331d]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification7do_testEPNS_9TrxHandleEb+0x3ef)[0x7f1780ce586f]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification4testEPNS_9TrxHandleEb+0x28)[0x7f1780ce5cc8]
/usr/lib/libgalera_smm.so(_ZN6galera13Certification10append_trxEPNS_9TrxHandleE+0xcc)[0x7f1780ce5dac]
/usr/lib/libgalera_smm.so(_ZN6galera13ReplicatorSMM4certEPNS_9TrxHandleE+0x88)[0x7f1780d0fee8]
/usr/lib/libgalera_smm.so(_ZN6galera13ReplicatorSMM10pre_commitEPNS_9TrxHandleEP14wsrep_trx_meta+0x59)[0x7f1780d113e9]
/usr/lib/libgalera_smm.so(galera_pre_commit+0x140)[0x7f1780d28e30]
/usr/sbin/mysqld(_Z22wsrep_run_wsrep_commitP3THDP10handlertonb+0xa17)[0x7ac1e7]
/usr/sbin/mysqld[0x7acd2b]
/usr/sbin/mysqld(_Z14ha_prepare_lowP3THDb+0x87)[0x5de227]
/usr/sbin/mysqld(_Z15ha_commit_transP3THDbb+0x17a)[0x5dd38a]
/usr/sbin/mysqld(_Z17trans_commit_stmtP3THD+0x37)[0x791d67]
/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x97c)[0x70639c]
/usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x5f8)[0x70d678]
/usr/sbin/mysqld[0x70def8]
/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x192f)[0x70fe7f]
/usr/sbin/mysqld(_Z10do_commandP3THD+0x1db)[0x71175b]
/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x16f)[0x6dcd6f]
/usr/sbin/mysqld(handle_one_connection+0x47)[0x6dcf27]
/usr/sbin/mysqld(pfs_spawn_thread+0x143)[0x923493]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f179fe6ce9a]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f179f3873fd]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7f1620e02d80): is an invalid pointer
Connection ID (thread ID): 10
Status: NOT_KILLED