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https://issues.apache.org/jira/browse/SOLR-4739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cassandra Targett updated SOLR-4739:
------------------------------------
Component/s: SolrCloud
> May be lost update when creating or deleting Alias
> ---------------------------------------------------
>
> Key: SOLR-4739
> URL: https://issues.apache.org/jira/browse/SOLR-4739
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Reporter: milesli
>
> we may create or delete alias before zookeeper notify alias watch,
> then clone the current aliases and update
> finally send data to zookeeper.
> so it may lead to lost of update.
> add a line code: zkStateReader.setAliases(newAliases);
> ...
> try {
> zkStateReader.getZkClient().setData(ZkStateReader.ALIASES,
> jsonBytes, true);
>
> // update the current aliases
> zkStateReader.setAliases(newAliases);
>
> checkForAlias(aliasName, collections);
> // some fudge for other nodes
> Thread.sleep(100);
> } catch (KeeperException e) {
> log.error("", e);
> throw new SolrException(ErrorCode.SERVER_ERROR, e);
> } catch (InterruptedException e) {
> log.warn("", e);
> throw new SolrException(ErrorCode.SERVER_ERROR, e);
> }
> ...
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