Hello Michelle,
How many regions totally are there in your 600 nodes cluster? Looks like many of them are pending for open and being assigned to region servers.
Can you see many items under zookeeper dir /hbase/unassigned?
You would like to refer http://blog.sina.com.cn/s/blog_4a1f59bf01018tu4.html?
How many regions totally are there in your 600 nodes cluster? Looks like many of them are pending for open and being assigned to region servers.
Can you see many items under zookeeper dir /hbase/unassigned?
You would like to refer http://blog.sina.com.cn/s/blog_4a1f59bf01018tu4.html?
Best Regards, Julian
On Oct 23, 2013, at 01:46 PM, 张莉苹 <zlpmiche...@gmail.com> wrote:
Dear HBase dev and users,
Did you meet this
"org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.listTables"
issue?
We setup a 600 nodes cluster, 9 zookeeper nodes to load data into hbase,
but it seemed hbase master was busy handling transition with zookeeper, and
hbase “list” could not get response. The hbase table was created but it
didn't do any insert.
Do you have any idea of the root cause and how to fix it? :)Highly
appreciate for your answers!
Here is the exception stack:
---------------------------------------------------
java.lang.reflect.UndeclaredThrowableException
at $Proxy7.getHTableDescriptors(Unknown Source)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.listTables(HConnectionManager.java:2237)
at
org.apache.hadoop.hbase.client.HBaseAdmin.listTables(HBaseAdmin.java:317)
hbase master log:
-----------------------------
2013-10-18 06:19:41,279 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign:
master:60000-0x341be88202300ab* Deleting existing unassigned node* for
0ec3308bd1e2bdd9576b2d60d2eee68e that is in expected state
RS_ZK_REGION_OPENED
2013-10-18 06:19:41,279 DEBUG
org.apache.hadoop.hbase.master.AssignmentManager:* Handling
transition=RS_ZK_REGION_OPENING*, s*erver=node0878*.
ic.analyticsworkbench.com,60020,1381883086785,
region=15a4fb29aa1d905b13f33594e50bc8de, which is more than 15 seconds late
2013-10-18 06:19:41,280 DEBUG
org.apache.hadoop.hbase.master.AssignmentManager: *Handling
transition=RS_ZK_REGION_OPENING,
server=node0898*.ic.analyticsworkbench.com,60020,1381883200494,
region=1a4c929534e6828c85f22b062f949304, which is more than 15 seconds late
2013-10-18 06:19:41,289 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign:
master:60000-0x341be88202300ab Successfully *deleted unassigned node *for
region 0ec3308bd1e2bdd9576b2d60d2eee68e in expected state
RS_ZK_REGION_OPENED
2013-10-18 06:19:41,289 DEBUG
org.apache.hadoop.hbase.master.AssignmentManager: Handling
transition=RS_ZK_REGION_OPENING,
server=node0693.ic.analyticsworkbench.com,60020,1381881773670,
region=d47bfe1af0051c405de295a51c1c6e63, which is more than 15 seconds late
We also try to "list" in hbase shell,it also failed:
The hbase “list” got error as:
------------------------------------------
hbase(main):001:0> list
TABLE
ERROR: java.lang.reflect.UndeclaredThrowableException: Call to
node0997.ic.analyticsworkbench.com/10.1.50.17:60000 failed on socket
timeout exception: java.net.SocketTimeoutException: 120000 millis timeout
while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.1.50.15:45726 remote=
node0997.ic.analyticsworkbench.com/10.1.50.17:60000]
Cheers,
-----
Big Data - Big Wisdom - Big Value
--------------
Michelle Zhang (Li Ping Zhang)
