[jira] [Updated] (HBASE-5816) Two concurrent assign would cause master to abort with msg Unexpected state trying to OFFLINE;

2012-04-18 Thread Maryann Xue (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Maryann Xue updated HBASE-5816:
---

Status: Patch Available  (was: Open)

 Two concurrent assign would cause master to abort with msg Unexpected state 
 trying to OFFLINE; 
 -

 Key: HBASE-5816
 URL: https://issues.apache.org/jira/browse/HBASE-5816
 Project: HBase
  Issue Type: Bug
  Components: master
Affects Versions: 0.90.6
Reporter: Maryann Xue
 Attachments: HBASE-5816.patch


 The first assign thread exits with success after updating the RegionState to 
 PENDING_OPEN, while the second assign follows immediately into assign and 
 fails the RegionState check in setOfflineInZooKeeper(). This causes the 
 master to abort.
 In the below case, the two concurrent assigns occurred when AM tried to 
 assign a region to a dying/dead RS, and meanwhile the ShutdownServerHandler 
 tried to assign this region (from the region plan) spontaneously.
 2012-04-17 05:44:57,648 INFO org.apache.hadoop.hbase.master.HMaster: balance 
 hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b., 
 src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Starting unassignment of 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 (offlining)
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Sent CLOSE to 
 serverName=hadoop05.sh.intel.com,60020,1334544902186, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0) for region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.
 2012-04-17 05:44:57,666 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Handling new unassigned 
 node: /hbase/unassigned/fe38fe31caf40b6e607a3e6bbed6404b 
 (region=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  server=hadoop05.sh.intel.com,60020,1334544902186, state=RS_ZK_REGION_CLOSING)
 2012-04-17 05:52:58,984 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=CLOSED, ts=1334612697672, 
 server=hadoop05.sh.intel.com,60020,1334544902186
 2012-04-17 05:52:58,984 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: 
 master:6-0x236b912e9b3000e Creating (or updating) unassigned node for 
 fe38fe31caf40b6e607a3e6bbed6404b with OFFLINE state
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Using pre-existing plan for 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.; 
 plan=hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Assigning region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:19,159 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=PENDING_OPEN, ts=1334613179096, 
 server=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:59,033 WARN 
 org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 serverName=xmlqa-clv16.sh.intel.com,60020,1334612497253, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0), trying to assign elsewhere instead; retry=0
 java.net.SocketTimeoutException: Call to /10.239.47.87:60020 failed on socket 
 timeout exception: java.net.SocketTimeoutException: 12 millis timeout 
 while waiting for channel to be ready for read. ch : 
 java.nio.channels.SocketChannel[connected local=/10.239.47.89:41302 
 remote=/10.239.47.87:60020]
 at 
 org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:805)
 at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:778)
 at 
 org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:283)
 at $Proxy7.openRegion(Unknown Source)
 at 
 org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:573)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1127)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:912)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:892)
 at 
 

[jira] [Updated] (HBASE-5816) Two concurrent assign would cause master to abort with msg Unexpected state trying to OFFLINE;

2012-04-17 Thread Maryann Xue (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Maryann Xue updated HBASE-5816:
---

Status: Patch Available  (was: Open)

 Two concurrent assign would cause master to abort with msg Unexpected state 
 trying to OFFLINE; 
 -

 Key: HBASE-5816
 URL: https://issues.apache.org/jira/browse/HBASE-5816
 Project: HBase
  Issue Type: Bug
  Components: master
Affects Versions: 0.90.6
Reporter: Maryann Xue

 The first assign thread exits with success after updating the RegionState to 
 PENDING_OPEN, while the second assign follows immediately into assign and 
 fails the RegionState check in setOfflineInZooKeeper(). This causes the 
 master to abort.
 In the below case, the two concurrent assigns occurred when AM tried to 
 assign a region to a dying/dead RS, and meanwhile the ShutdownServerHandler 
 tried to assign this region (from the region plan) spontaneously.
 2012-04-17 05:44:57,648 INFO org.apache.hadoop.hbase.master.HMaster: balance 
 hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b., 
 src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Starting unassignment of 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 (offlining)
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Sent CLOSE to 
 serverName=hadoop05.sh.intel.com,60020,1334544902186, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0) for region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.
 2012-04-17 05:44:57,666 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Handling new unassigned 
 node: /hbase/unassigned/fe38fe31caf40b6e607a3e6bbed6404b 
 (region=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  server=hadoop05.sh.intel.com,60020,1334544902186, state=RS_ZK_REGION_CLOSING)
 2012-04-17 05:52:58,984 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=CLOSED, ts=1334612697672, 
 server=hadoop05.sh.intel.com,60020,1334544902186
 2012-04-17 05:52:58,984 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: 
 master:6-0x236b912e9b3000e Creating (or updating) unassigned node for 
 fe38fe31caf40b6e607a3e6bbed6404b with OFFLINE state
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Using pre-existing plan for 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.; 
 plan=hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Assigning region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:19,159 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=PENDING_OPEN, ts=1334613179096, 
 server=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:59,033 WARN 
 org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 serverName=xmlqa-clv16.sh.intel.com,60020,1334612497253, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0), trying to assign elsewhere instead; retry=0
 java.net.SocketTimeoutException: Call to /10.239.47.87:60020 failed on socket 
 timeout exception: java.net.SocketTimeoutException: 12 millis timeout 
 while waiting for channel to be ready for read. ch : 
 java.nio.channels.SocketChannel[connected local=/10.239.47.89:41302 
 remote=/10.239.47.87:60020]
 at 
 org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:805)
 at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:778)
 at 
 org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:283)
 at $Proxy7.openRegion(Unknown Source)
 at 
 org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:573)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1127)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:912)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:892)
 at 
 

[jira] [Updated] (HBASE-5816) Two concurrent assign would cause master to abort with msg Unexpected state trying to OFFLINE;

2012-04-17 Thread Maryann Xue (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Maryann Xue updated HBASE-5816:
---

Status: Open  (was: Patch Available)

 Two concurrent assign would cause master to abort with msg Unexpected state 
 trying to OFFLINE; 
 -

 Key: HBASE-5816
 URL: https://issues.apache.org/jira/browse/HBASE-5816
 Project: HBase
  Issue Type: Bug
  Components: master
Affects Versions: 0.90.6
Reporter: Maryann Xue

 The first assign thread exits with success after updating the RegionState to 
 PENDING_OPEN, while the second assign follows immediately into assign and 
 fails the RegionState check in setOfflineInZooKeeper(). This causes the 
 master to abort.
 In the below case, the two concurrent assigns occurred when AM tried to 
 assign a region to a dying/dead RS, and meanwhile the ShutdownServerHandler 
 tried to assign this region (from the region plan) spontaneously.
 2012-04-17 05:44:57,648 INFO org.apache.hadoop.hbase.master.HMaster: balance 
 hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b., 
 src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Starting unassignment of 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 (offlining)
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Sent CLOSE to 
 serverName=hadoop05.sh.intel.com,60020,1334544902186, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0) for region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.
 2012-04-17 05:44:57,666 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Handling new unassigned 
 node: /hbase/unassigned/fe38fe31caf40b6e607a3e6bbed6404b 
 (region=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  server=hadoop05.sh.intel.com,60020,1334544902186, state=RS_ZK_REGION_CLOSING)
 2012-04-17 05:52:58,984 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=CLOSED, ts=1334612697672, 
 server=hadoop05.sh.intel.com,60020,1334544902186
 2012-04-17 05:52:58,984 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: 
 master:6-0x236b912e9b3000e Creating (or updating) unassigned node for 
 fe38fe31caf40b6e607a3e6bbed6404b with OFFLINE state
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Using pre-existing plan for 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.; 
 plan=hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Assigning region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:19,159 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=PENDING_OPEN, ts=1334613179096, 
 server=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:59,033 WARN 
 org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 serverName=xmlqa-clv16.sh.intel.com,60020,1334612497253, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0), trying to assign elsewhere instead; retry=0
 java.net.SocketTimeoutException: Call to /10.239.47.87:60020 failed on socket 
 timeout exception: java.net.SocketTimeoutException: 12 millis timeout 
 while waiting for channel to be ready for read. ch : 
 java.nio.channels.SocketChannel[connected local=/10.239.47.89:41302 
 remote=/10.239.47.87:60020]
 at 
 org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:805)
 at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:778)
 at 
 org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:283)
 at $Proxy7.openRegion(Unknown Source)
 at 
 org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:573)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1127)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:912)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:892)
 at 
 

[jira] [Updated] (HBASE-5816) Two concurrent assign would cause master to abort with msg Unexpected state trying to OFFLINE;

2012-04-17 Thread Maryann Xue (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Maryann Xue updated HBASE-5816:
---

Attachment: HBASE-5816.patch

Replace abort with LOG.WARN.

 Two concurrent assign would cause master to abort with msg Unexpected state 
 trying to OFFLINE; 
 -

 Key: HBASE-5816
 URL: https://issues.apache.org/jira/browse/HBASE-5816
 Project: HBase
  Issue Type: Bug
  Components: master
Affects Versions: 0.90.6
Reporter: Maryann Xue
 Attachments: HBASE-5816.patch


 The first assign thread exits with success after updating the RegionState to 
 PENDING_OPEN, while the second assign follows immediately into assign and 
 fails the RegionState check in setOfflineInZooKeeper(). This causes the 
 master to abort.
 In the below case, the two concurrent assigns occurred when AM tried to 
 assign a region to a dying/dead RS, and meanwhile the ShutdownServerHandler 
 tried to assign this region (from the region plan) spontaneously.
 2012-04-17 05:44:57,648 INFO org.apache.hadoop.hbase.master.HMaster: balance 
 hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b., 
 src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Starting unassignment of 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 (offlining)
 2012-04-17 05:44:57,648 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Sent CLOSE to 
 serverName=hadoop05.sh.intel.com,60020,1334544902186, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0) for region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.
 2012-04-17 05:44:57,666 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Handling new unassigned 
 node: /hbase/unassigned/fe38fe31caf40b6e607a3e6bbed6404b 
 (region=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  server=hadoop05.sh.intel.com,60020,1334544902186, state=RS_ZK_REGION_CLOSING)
 2012-04-17 05:52:58,984 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=CLOSED, ts=1334612697672, 
 server=hadoop05.sh.intel.com,60020,1334544902186
 2012-04-17 05:52:58,984 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: 
 master:6-0x236b912e9b3000e Creating (or updating) unassigned node for 
 fe38fe31caf40b6e607a3e6bbed6404b with OFFLINE state
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Using pre-existing plan for 
 region TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.; 
 plan=hri=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b.,
  src=hadoop05.sh.intel.com,60020,1334544902186, 
 dest=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:52:59,096 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Assigning region 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:19,159 DEBUG 
 org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE; 
 was=TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. 
 state=PENDING_OPEN, ts=1334613179096, 
 server=xmlqa-clv16.sh.intel.com,60020,1334612497253
 2012-04-17 05:54:59,033 WARN 
 org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of 
 TABLE_ORDER_CUSTOMER,,1334017820846.fe38fe31caf40b6e607a3e6bbed6404b. to 
 serverName=xmlqa-clv16.sh.intel.com,60020,1334612497253, load=(requests=0, 
 regions=0, usedHeap=0, maxHeap=0), trying to assign elsewhere instead; retry=0
 java.net.SocketTimeoutException: Call to /10.239.47.87:60020 failed on socket 
 timeout exception: java.net.SocketTimeoutException: 12 millis timeout 
 while waiting for channel to be ready for read. ch : 
 java.nio.channels.SocketChannel[connected local=/10.239.47.89:41302 
 remote=/10.239.47.87:60020]
 at 
 org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:805)
 at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:778)
 at 
 org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:283)
 at $Proxy7.openRegion(Unknown Source)
 at 
 org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:573)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1127)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:912)
 at 
 org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:892)
 at