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https://issues.apache.org/jira/browse/HDDS-3560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-3560:
---------------------------------
Labels: pull-request-available (was: )
> hadoop version < 3.2 throw IllegalAccessError when assign proxy
> ---------------------------------------------------------------
>
> Key: HDDS-3560
> URL: https://issues.apache.org/jira/browse/HDDS-3560
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: om, Ozone Client
> Affects Versions: 0.6.0
> Reporter: maobaolong
> Assignee: maobaolong
> Priority: Major
> Labels: pull-request-available
>
> The method createOMProxyIfNeeded of OMFailoverProxyProvider will throw
> IllegalAccessError when work with hadoop version lower than 3.2.
> The following is the problem code, it want assign a proxy to
> `proxyInfo.proxy`.
> {code:java}
> private void createOMProxyIfNeeded(ProxyInfo proxyInfo,
> String nodeId) {
> if (proxyInfo.proxy == null) {
> InetSocketAddress address = omProxyInfos.get(nodeId).getAddress();
> try {
> proxyInfo.proxy = createOMProxy(address);
> } catch (IOException ioe) {
> LOG.error("{} Failed to create RPC proxy to OM at {}",
> this.getClass().getSimpleName(), address, ioe);
> throw new RuntimeException(ioe);
> }
> }
> }
> {code}
> But, hadoop lower than 3.2, the field proxy of proxyInfo is marked as final.
> {code:java}
> public static final class ProxyInfo<T> {
> public final T proxy;
> /*
> * The information (e.g., the IP address) of the current proxy object. It
> * provides information for debugging purposes.
> */
> public final String proxyInfo;
> ...
> }
> {code}
> So, if we want to work around, we should catch the exception and new a
> ProxyInfo instance instead.
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