Help!!! What parameters should I modify?? (no replies)

cat config.ini
[ndbd default]
NoOfReplicas=2
DataMemory=210400M
IndexMemory=10048M
MaxNoOfConcurrentOperations=20000000
MaxNoOfConcurrentTransactions=50000
MaxNoOfTables=1024
MaxNoOfOrderedIndexes=8192
MaxNoOfUniqueHashIndexes=2048
MaxNoOfAttributes=32768
MaxNoOfTriggers=32768
FragmentLogFileSize=512M
InitFragmentLogFiles=SPARSE
NoOfFragmentLogFiles=512
[tcp default]
portnumber=2202
[ndb_mgmd]
hostname=192.168.10.2
datadir=/var/lib/mysql-cluster
LogDestination=FILE:filename=ndb_1_cluster.log,maxsize=10000000,maxfiles=6
[ndb_mgmd]
hostname=192.168.10.3
datadir=/var/lib/mysql-cluster
LogDestination=FILE:filename=ndb_2_cluster.log,maxsize=10000000,maxfiles=6
[ndbd]
hostname=192.168.10.9
datadir=/var/lib/mysql/data
[ndbd]
hostname=192.168.10.10
datadir=/var/lib/mysql/data
[mysqld]
hostname=192.168.10.2
[mysqld]
hostname=192.168.10.3
[mysqld]
[mysqld]
[mysqld]


cat my.cnf
[mysqld]
port=2274
ndbcluster
skip_name_resolve=on
slow_query_log=on
long_query_time=5
query_cache_type=1
max_connections=1000
lower_case_table_names=1
character_set_server=gbk
init_connect='SET NAMES gbk'
init_connect='set character_set_database=gbk'
default_storage_engine=ndbcluster
default_tmp_storage_engine=ndbcluster
ndb-connectstring=192.168.10.2,192.168.10.3
[mysql_cluster]
ndb-connectstring=192.168.10.2,192.168.10.3



The manager nodes logs and ndb nodes logs:
ndb-mgm1:
2014-12-02 10:42:00 [MgmtSrvr] ALERT -- Node 1: Node 3 Disconnected
2014-12-02 10:42:07 [MgmtSrvr] ALERT -- Node 1: Node 4 Disconnected
2014-12-02 10:42:08 [MgmtSrvr] INFO -- Node 1: Node 3 Connected
2014-12-02 10:42:08 [MgmtSrvr] INFO -- Node 3: Node 2: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:09 [MgmtSrvr] INFO -- Node 3: Started arbitrator node 1 [ticket=25f4000a6cc83faa]
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Communication to Node 5 opened
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Communication to Node 6 opened
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Node 6 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 1: Node 4 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Node 5 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 4: Node 2: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 4: Node 5 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 4: Node 6: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Node 6: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:12 [MgmtSrvr] INFO -- Node 3: Node 5: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:12 [MgmtSrvr] INFO -- Node 4: Node 5: API mysql-5.6.11 ndb-7.3.2

ndb-mgm2:
2014-12-02 10:42:00 [MgmtSrvr] ALERT -- Node 2: Node 3 Disconnected
2014-12-02 10:42:08 [MgmtSrvr] ALERT -- Node 2: Node 4 Disconnected
2014-12-02 10:42:08 [MgmtSrvr] INFO -- Node 2: Node 3 Connected
2014-12-02 10:42:09 [MgmtSrvr] INFO -- Node 3: Started arbitrator node 1 [ticket=25f4000a6cc83faa]
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Communication to Node 5 opened
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Communication to Node 6 opened
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Node 6 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 2: Node 4 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Node 5 Connected
2014-12-02 10:42:11 [MgmtSrvr] INFO -- Node 3: Node 6: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:12 [MgmtSrvr] INFO -- Node 3: Node 5: API mysql-5.6.11 ndb-7.3.2
2014-12-02 10:42:12 [MgmtSrvr] INFO -- Node 4: Node 5: API mysql-5.6.11 ndb-7.3.2

ndb-data1:
Backup : Excessive Backup/LCP write rate in last monitoring period - recorded = 12739708 bytes/s, configured = 10485760 bytes/s
Backup : Monitoring period : 1070 millis. Bytes written : 3407872. Max allowed : 3145728
LCP Frag watchdog : No progress on table 56, frag 0 for 20 s. 0 bytes remaining.
2014-12-02 10:41:54 [ndbd] INFO -- part: 3 : sum_outstanding: 1824kb avg_written: 256kb avg_elapsed: 6530ms time to complete: 46
lag_cnt: 0 => 2 retVal: 0
2014-12-02 10:42:02 [ndbd] WARNING -- Ndb kernel thread 0 is stuck in: Job Handling elapsed=100
2014-12-02 10:42:02 [ndbd] WARNING -- Time moved forward with 8249 ms
2014-12-02 10:42:02 [ndbd] INFO -- Watchdog: User time: 936098 System time: 206357
2014-12-02 10:42:02 [ndbd] WARNING -- timerHandlingLab now: 36184796018 sent: 36184787778 diff: 8240
2014-12-02 10:42:02 [ndbd] INFO -- part: 3 : time to complete: 4
2014-12-02 10:42:07 [ndbd] INFO -- Watchdog: User time: 936098 System time: 206358
2014-12-02 10:42:07 [ndbd] WARNING -- Watchdog: Warning overslept 8212 ms, expected 100 ms.
2014-12-02 10:42:07 [ndbd] WARNING -- Time moved forward with 5165 ms
2014-12-02 10:42:07 [ndbd] WARNING -- timerHandlingLab now: 36184801192 sent: 36184796027 diff: 5165
2014-12-02 10:42:07 [ndbd] INFO -- Lost arbitrator node 1 - process failure [state=6]
2014-12-02 10:42:07 [ndbd] INFO -- President restarts arbitration thread [state=1]
2014-12-02 10:42:07 [ndbd] WARNING -- Could not find an arbitrator, cluster is not partition-safe
2014-12-02 10:42:07 [ndbd] INFO -- Watchdog: User time: 936101 System time: 206364
2014-12-02 10:42:07 [ndbd] WARNING -- Watchdog: Warning overslept 5174 ms, expected 100 ms.
2014-12-02 10:42:09 [ndbd] INFO -- Started arbitrator node 1 [ticket=25f4000a6cc83faa]

ndb-data2:
2014-12-02 10:41:46 [ndbd] INFO -- part: 3 : time to complete: 11
2014-12-02 10:41:47 [ndbd] WARNING -- Ndb kernel thread 0 is stuck in: Job Handling elapsed=100
2014-12-02 10:41:47 [ndbd] INFO -- Watchdog: User time: 946546 System time: 228738
2014-12-02 10:41:47 [ndbd] WARNING -- timerHandlingLab now: 36183821249 sent: 36183819818 diff: 1431
2014-12-02 10:41:47 [ndbd] INFO -- part: 3 : time to complete: 3
2014-12-02 10:41:47 [ndbd] INFO -- Watchdog: User time: 946550 System time: 228739
2014-12-02 10:41:47 [ndbd] WARNING -- Watchdog: Warning overslept 1365 ms, expected 100 ms.
Backup : Excessive Backup/LCP write rate in last monitoring period - recorded = 14222967 bytes/s, configured = 10485760 bytes/s
Backup : Monitoring period : 1069 millis. Bytes written : 3801088. Max allowed : 3145728
2014-12-02 10:42:07 [ndbd] INFO -- Lost arbitrator node 1 - process failure [state=6]
2014-12-02 10:42:09 [ndbd] INFO -- Prepare arbitrator node 1 [ticket=25f4000a6cc83faa]
2014-12-02 10:42:09 [ndbd] WARNING -- President 3 proposed disconnected node 1 as arbitrator [ticket=25f4000a6cc83faa]. Cluster may
be partially connected. Connected nodes: 3,4