[HBASE-21525] java.io.IOException: java.lang.ClassNotFoundException: clone_snapshot from hbase2.0.0 to hbase1.2.0

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 1.2.0, 2.0.0
• Component/s: snapshots
• Assignee: Unassigned
• Reporter: huan
• Created: 29/Nov/18 06:28
• Updated: 01/Apr/19 16:36
• Resolved: 01/Apr/19 16:36

Description

When I use 

hbase org.apache.hadoop.hbase.snapshot.ExportSnapshot -snapshot "wh_scan_issue_monitor_on_snap_1" -copy-from hdfs://xxxx:8020/hbase  -copy-to hdfs://xxx:8020/hbase

to copy snapshot from hbase2.0.0 to hbase 1.2.0 and then use

clone_snapshot 'wh_scan_issue_monitor_on_snap_1',"wh_scan_issue_monitor_table"

to restore the table;

There are no errors on client and hbase master.

but I can not scan any data in this new table.

So when I search the log in regionserver which that region running on .I find the below error log

 

2018-11-29 13:39:45,826 ERROR org.apache.hadoop.hbase.regionserver.StoreFile$Reader: Error reading bloom filter meta for GENERAL_BLOOM_META -- proceeding without
java.io.IOException: java.lang.ClassNotFoundException:
at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.getComparatorClass(FixedFileTrailer.java:581)
at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.createComparator(FixedFileTrailer.java:588)
at org.apache.hadoop.hbase.util.CompoundBloomFilter.<init>(CompoundBloomFilter.java:73)
at org.apache.hadoop.hbase.util.BloomFilterFactory.createFromMeta(BloomFilterFactory.java:109)
at org.apache.hadoop.hbase.regionserver.StoreFile$Reader.loadBloomfilter(StoreFile.java:1469)
at org.apache.hadoop.hbase.regionserver.StoreFile$Reader.access$000(StoreFile.java:1088)
at org.apache.hadoop.hbase.regionserver.StoreFile.open(StoreFile.java:465)
at org.apache.hadoop.hbase.regionserver.StoreFile.createReader(StoreFile.java:509)
at org.apache.hadoop.hbase.regionserver.StoreFile.createReader(StoreFile.java:499)
at org.apache.hadoop.hbase.regionserver.HStore.createStoreFileAndReader(HStore.java:676)
at org.apache.hadoop.hbase.regionserver.HStore.access$000(HStore.java:119)
at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:543)
at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:540)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException:
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.getComparatorClass(FixedFileTrailer.java:578)
... 18 more

 

 

 

 

Issue Links

• is superceded by: HBASE-16189 [Rolling Upgrade] 2.0 hfiles cannot be opened by 1.x servers