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https://issues.apache.org/jira/browse/HBASE-22890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16934102#comment-16934102
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Reid Chan commented on HBASE-22890:
-----------------------------------
New commits are pushed branch-1 and branch-1.4.
> Verify the files when RegionServer is starting and BucketCache is in file mode
> ------------------------------------------------------------------------------
>
> Key: HBASE-22890
> URL: https://issues.apache.org/jira/browse/HBASE-22890
> Project: HBase
> Issue Type: Improvement
> Components: BucketCache
> Affects Versions: 1.4.6, 1.4.10, 1.3.5
> Reporter: zbq.dean
> Priority: Major
> Fix For: 1.5.0, 1.4.11
>
> Attachments: HBASE-22890.branch-1.0001.patch
>
>
> We use FileIOEngine in BucketCache and have configured
> <hbase.bucketcache.persistent.path>. If the RegionServer is stopped, and the
> cache data file or the backingMap persistence file is deleted or changed
> before the RegionServer is restarted. When restart RegionServer, the
> backingMap and cache data are Inconsistent, and get or scan command will get
> IOException like follows:
> bucket.BucketCache: Failed reading block
> 18951416e2ca4e8bbc11523f4f5ea576_1125745279 from bucket cache
> java.io.IOException: Invalid HFile block magic:
> \x00\x00\x00\x00\x00\x00\x00\x00
> at org.apache.hadoop.hbase.io.hfile.BlockType.parse(BlockType.java:154)
> at org.apache.hadoop.hbase.io.hfile.BlockType.read(BlockType.java:167)
> at org.apache.hadoop.hbase.io.hfile.HFileBlock.<init>(HFileBlock.java:347)
> at
> org.apache.hadoop.hbase.io.hfile.HFileBlock$1.deserialize(HFileBlock.java:247)
> at
> org.apache.hadoop.hbase.io.hfile.HFileBlock$1.deserialize(HFileBlock.java:226)
> at
> org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.getBlock(BucketCache.java:514)
> ......
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