Leonardo,
If you lost parts/all of your metadata table, you're going to be in for
a bit of a rough time. You should be able to get most of your data back;
however you might see data come back which you had previously deleted
and data which you recently ingested may be lost.
Check out
http://accumulo.apache.org/1.6/accumulo_user_manual.html#zookeeper_failure
The basic idea is to take all of the rfiles for each of your tables,
recreate the table in a new instance, and the import the files into that
new table. Even though you're running with Accumulo 1.5, the above user
manual entry should be applicable.
Let us know how we can help.
Leonardo Furio wrote:
Hi , i got this error, could you tell me how can i do to recovery
my accumulo table ? If I delete the HDFS file inside the !0 table ?
Any idea? I don't want to lose my data...
reports assignment failed for tablet !0;!0<<
25 16:07:57,0896tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 128.00 seconds
25 16:07:57,0895tserver:lumlv001.gcio.unicredit.eu8
WARN
failed to open tablet !0;!0<< reporting failure to master
25 16:07:57,0894tserver:lumlv001.gcio.unicredit.eu8
WARN
java.io.IOException: org.apache.commons.collections.BufferUnderflowException
25 16:07:57,0892tserver:lumlv001.gcio.unicredit.eu8
WARN
exception trying to assign tablet !0;!0<< /root_tablet
java.lang.RuntimeException: java.io.IOException:
org.apache.commons.collections.BufferUnderflowException
at org.apache.accumulo.server.tabletserver.Tablet.<init>(Tablet.java:1451)
at org.apache.accumulo.server.tabletserver.Tablet.<init>(Tablet.java:1300)
at org.apache.accumulo.server.tabletserver.Tablet.<init>(Tablet.java:1142)
at org.apache.accumulo.server.tabletserver.Tablet.<init>(Tablet.java:1130)
at
org.apache.accumulo.server.tabletserver.TabletServer$AssignmentHandler.run(TabletServer.java:2509)
at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException:
org.apache.commons.collections.BufferUnderflowException
at
org.apache.accumulo.server.tabletserver.log.TabletServerLogger.recover(TabletServerLogger.java:423)
at
org.apache.accumulo.server.tabletserver.TabletServer.recover(TabletServer.java:3419)
at org.apache.accumulo.server.tabletserver.Tablet.<init>(Tablet.java:1421)
... 6 more
Caused by: org.apache.commons.collections.BufferUnderflowException
at
org.apache.commons.collections.buffer.PriorityBuffer.get(PriorityBuffer.java:264)
at
org.apache.commons.collections.buffer.PriorityBuffer.remove(PriorityBuffer.java:277)
at
org.apache.accumulo.server.tabletserver.log.MultiReader.next(MultiReader.java:115)
at
org.apache.accumulo.server.tabletserver.log.SortedLogRecovery.findLastStartToFinish(SortedLogRecovery.java:145)
at
org.apache.accumulo.server.tabletserver.log.SortedLogRecovery.recover(SortedLogRecovery.java:103)
at
org.apache.accumulo.server.tabletserver.log.TabletServerLogger.recover(TabletServerLogger.java:421)
... 8 more
25 16:06:53,0855tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 64.00 seconds
25 16:06:21,0782tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 32.00 seconds
25 16:06:05,0705tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 16.00 seconds
25 16:05:57,0640tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 8.00 seconds
25 16:05:53,0575tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 4.00 seconds
25 16:05:51,0505tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 2.00 seconds
25 16:05:50,0429tserver:lumlv001.gcio.unicredit.eu1
WARN
rescheduling tablet load in 1.00 seconds
