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https://issues.apache.org/jira/browse/HBASE-1503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12719737#action_12719737
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stack commented on HBASE-1503:
------------------------------
The NPE I'd already worked through w/ Jon... its peek returning empty key.
Hacking up new patch that will include scanner for snapshot (see hbase-1507
discussion).
> hbase-1304 dropped updating list of store files on flush
> --------------------------------------------------------
>
> Key: HBASE-1503
> URL: https://issues.apache.org/jira/browse/HBASE-1503
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Assignee: stack
> Fix For: 0.20.0
>
> Attachments: HBASE-1503-v1.patch, HBASE-1503-v2.patch
>
>
> Here is how current updateReaders is implemented in StoreScanner:
> {code}
> // Implementation of ChangedReadersObserver
> public void updateReaders() throws IOException {
> if (this.closing.get()) {
> return;
> }
> this.lock.writeLock().lock();
> try {
> // Could do this pretty nicely with KeyValueHeap, but the existing
> // implementation of this method only updated if no existing storefiles?
> // Lets discuss.
> return;
> } finally {
> this.lock.writeLock().unlock();
> }
> }
> {code}
> Fill in missing functionality.
> Count of store files changes on flush and compaction.
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