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https://issues.apache.org/jira/browse/HDDS-15765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chi-Hsuan Huang reassigned HDDS-15765:
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Assignee: Chi-Hsuan Huang
> CompactOMDB hangs when --node-id is omitted on an HA OM cluster
> ---------------------------------------------------------------
>
> Key: HDDS-15765
> URL: https://issues.apache.org/jira/browse/HDDS-15765
> Project: Apache Ozone
> Issue Type: Bug
> Components: Tools
> Reporter: Chi-Hsuan Huang
> Assignee: Chi-Hsuan Huang
> Priority: Minor
>
> On an HA OM cluster, {{ozone repair om compact \-\-column\-family }} without
> {{\-\-node\-id}} does not fail cleanly, it hangs for a long time before
> eventually timing out.
> Root cause: with no {{\-\-node\-id}}/{{\-\-service\-id}},
> {{OMNodeDetails.getOMNodeDetailsFromConf\(conf, null, null\)}} falls back to
> the base config key {{ozone.om.address}}, which in an HA deployment defaults
> to {{0.0.0.0:9862}}. Because that resolves to a non\-null \(but useless\)
> address, the tool builds a valid\-looking {{OMNodeDetails}} for {{0.0.0.0}}
> and proceeds to the {{compactDB}} RPC. The connection to {{0.0.0.0}} fails
> and retries in the Hadoop IPC retry loop, so the command blocks. A thread
> dump shows {{main}} stuck in {{Client$Connection.handleConnectionFailure}}
> under {{OMAdminProtocolClientSideImpl.compactOMDB}}.
> Related to HDDS\-15733 \(fixed the "om node: null" display and added a
> null\-guard for the single\-OM case\). That fix does not cover this HA case,
> because here the address resolves to {{0.0.0.0}} rather than null, so the
> guard is not triggered.
> Suggested fix: when {{\-\-node\-id}} is omitted but the config defines
> multiple OM nodes \({{ozone.om.nodes.}}\), fail fast asking the operator to
> specify {{\-\-node\-id}}, instead of defaulting to {{0.0.0.0}}.
> Repro: {{compose/ozone\-ha}}, run the command in an {{om}} container without
> {{\-\-node\-id}}; observe the hang.
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