MohanDV commented on a change in pull request #1566: METRON-2322 Add Ambari
connection check to upgrade_helper script
URL: https://github.com/apache/metron/pull/1566#discussion_r348478032
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File path: metron-platform/metron-common/src/main/scripts/upgrade_helper.sh
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@@ -57,12 +57,18 @@ if [ "$mode" == "backup" ]; then
fi
if [ -f "/var/lib/ambari-server/resources/scripts/configs.py" ]; then
echo Backing up Ambari config...
- for config_type in $(curl -u $username:$password -H "X-Requested-By:
ambari" -X GET
http://$ambari_address/api/v1/clusters/$cluster_name?fields=Clusters/desired_configs
| grep '" : {' | grep -v Clusters | grep -v desired_configs | cut -d'"' -f2 |
grep metron);
- do
- echo Saving $config_type
- /var/lib/ambari-server/resources/scripts/configs.py -u $username
-p $password -a get -l ${ambari_address%:*} -n $cluster_name -c $config_type -f
$AMBARI_CONFIG_DIR/${config_type}.json
- done
- echo Done backing up Ambari config...
+ echo Checking connection...
+ ret_status=$(curl -i -u "$username":"$password" -H "X-Requested-By:
ambari" -X GET http://$ambari_address/api/v1/clusters/$cluster_name | head -n
1)
Review comment:
@mmiklavc I get `curl: (23) Failed writing body (3631 != 15905)` error
constantly. Looks like the piped program head is closing the read pipe before
the curl completely writes .
`[root@xxx-2 bin]# ./upgrade_helper.sh backup
ctr-e141-1563959304486-90868-01-000002.hwx.site:8080 admin admin
hcp201-solr4-build6
Backing up Ambari config...
Checking connection...
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left Speed
100 32297 0 32297 0 0 131k 0 --:--:-- --:--:-- --:--:--
131k
curl: (23) Failed writing body (3631 != 15905)
Unable to get cluster detail from Ambari. Check your username, password, and
cluster name. Skipping.
Skipping Metron config backup - Metron not found on this host`
I ran the curl command with `-s, --silent Silent mode. Don't output
anything` it works fine
`[root@xxx-2 bin]# curl -s -i -u "admin":"admin" -H "X-Requested-By: ambari"
-X GET
http://ctr-e141-1563959304486-90868-01-000002.hwx.site:8080/api/v1/clusters/hcp201-solr4-build6
| head -n 1
HTTP/1.1 200 OK`
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