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HDFS-13275. Adding log for BlockPoolManager#refreshNamenodes failures. Contributed by Ajay Kumar.

This commit is contained in:
Xiaoyu Yao 2018-03-14 10:38:00 -07:00
parent 4c57fb0cd9
commit 0be0f1ce1d
1 changed files with 18 additions and 6 deletions
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24
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolManager.java
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@ -146,13 +146,25 @@ class BlockPoolManager {
void refreshNamenodes(Configuration conf) void refreshNamenodes(Configuration conf)
throws IOException { throws IOException {
LOG.info("Refresh request received for nameservices: " + conf.get LOG.info("Refresh request received for nameservices: " +
(DFSConfigKeys.DFS_NAMESERVICES)); conf.get(DFSConfigKeys.DFS_NAMESERVICES));
Map<String, Map<String, InetSocketAddress>> newAddressMap = DFSUtil Map<String, Map<String, InetSocketAddress>> newAddressMap = null;
.getNNServiceRpcAddressesForCluster(conf); Map<String, Map<String, InetSocketAddress>> newLifelineAddressMap = null;
Map<String, Map<String, InetSocketAddress>> newLifelineAddressMap = DFSUtil
.getNNLifelineRpcAddressesForCluster(conf); try {
newAddressMap =
DFSUtil.getNNServiceRpcAddressesForCluster(conf);
newLifelineAddressMap =
DFSUtil.getNNLifelineRpcAddressesForCluster(conf);
} catch (IOException ioe) {
LOG.warn("Unable to get NameNode addresses.");
}
if (newAddressMap == null || newAddressMap.isEmpty()) {
throw new IOException("No services to connect, missing NameNode " +
"address.");
}
synchronized (refreshNamenodesLock) { synchronized (refreshNamenodesLock) {
doRefreshNamenodes(newAddressMap, newLifelineAddressMap); doRefreshNamenodes(newAddressMap, newLifelineAddressMap);