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https://issues.apache.org/jira/browse/BOOKKEEPER-421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13471464#comment-13471464
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Ivan Kelly commented on BOOKKEEPER-421:
---------------------------------------
A related problem which will need to be fixed first is that ledger ids are
generated using a sequential znode. This limits the max ledger id to MAX_INT
(2^31).
{code}
int parentCVersion = parentRecord.stat.getCversion();
CreateMode createMode = CreateMode.fromFlag(createRequest.getFlags());
if (createMode.isSequential()) {
path = path + String.format(Locale.ENGLISH, "%010d", parentCVersion);
}
{code}
Again, the fix is simple, but backward compatibility could be a problem.
> ledger ids are long, but they are stored in zk as 10 characters max, which
> fundamentally limits them at 9 billion
> -----------------------------------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-421
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-421
> Project: Bookkeeper
> Issue Type: Bug
> Reporter: Ivan Kelly
> Priority: Critical
> Fix For: 4.2.0
>
>
> {code}
> public static String getZKStringId(long id) {
> return String.format("%010d", id);
> }
> {code}
> Simple to fix, but we need it be backward compatible, which also shouldn't be
> a problem.
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