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Posted to dev@hbase.apache.org by "ChiaPing Tsai (JIRA)" <ji...@apache.org> on 2016/12/20 09:17:58 UTC
[jira] [Created] (HBASE-17344) The regionserver web UIs miss the
coprocessors of RegionServerCoprocessorHost.
ChiaPing Tsai created HBASE-17344:
-------------------------------------
Summary: The regionserver web UIs miss the coprocessors of RegionServerCoprocessorHost.
Key: HBASE-17344
URL: https://issues.apache.org/jira/browse/HBASE-17344
Project: HBase
Issue Type: Bug
Reporter: ChiaPing Tsai
Priority: Minor
The critical code is shown below.
{code:title=HRegionServer.java|borderStyle=solid}
public String[] getRegionServerCoprocessors() {
TreeSet<String> coprocessors = new TreeSet<String>();
try {
coprocessors.addAll(getWAL(null).getCoprocessorHost().getCoprocessors());
} catch (IOException exception) {
LOG.warn("Exception attempting to fetch wal coprocessor information for the common wal; " +
"skipping.");
LOG.debug("Exception details for failure to fetch wal coprocessor information.", exception);
}
Collection<Region> regions = getOnlineRegionsLocalContext();
for (Region region: regions) {
coprocessors.addAll(region.getCoprocessorHost().getCoprocessors());
try {
coprocessors.addAll(getWAL(region.getRegionInfo()).getCoprocessorHost().getCoprocessors());
} catch (IOException exception) {
LOG.warn("Exception attempting to fetch wal coprocessor information for region " + region +
"; skipping.");
LOG.debug("Exception details for failure to fetch wal coprocessor information.", exception);
}
}
return coprocessors.toArray(new String[coprocessors.size()]);
}
{code}
A case is that the the JMXListener always disappears on the rs web.
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