openstack specific host vm launch - host

everyone!
I'm running openstack (devstack installed) on 4 compute nodes & 1 control node cluster.
Compute hosts: node1, node2, node3, node4.
How can I run VM(s) on specific host(s), for instance on node3?
Using horizon or euca-* tools.
Thanx!

Select a specific node to boot instances on:
http://docs.openstack.org/essex/openstack-compute/admin/content/specify-host-to-boot-instances-on.html
Admin account required
Essex version

You need to use the availability zone -z option in euca-run-instances. For example if you wanted to boot the same image on every compute host that you have.
HOSTS=`nova-manage service list | grep compute | grep -v XXX | grep -v disabled | sort | cut -f1 -d' '`
for host in $HOSTS; do
euca-run-instances -k my-keypair -z nova:$host my-ami-id
done
This little script assumes that you only have one "availability zone" called 'nova' (the default in devstack).
Note that this still works in Essex but only if you're the admin user.

You can check your availability zone using:
openstack availability zone list
Now to create an instance on node2 you gave:
nova boot --flavor 'm1.tiny' --image (image id) --nic net-id=(network id) --availability-zone nova:node2 instance_name

Related

How can I use the WooCommerce CLI to update a customer's metadata?

I feel like I should be able to do
sudo wp wc customer update 141 --meta_data="[{"key":"test_meta1","value":"test_meta_value"}]" --user=1
However, this does not work.
The result I get is
Success: Updated customer 141.
However,
sudo wp wc customer get 141 --fields=meta_data --user=1 | grep test_meta
returns blank.
Almost certainly, I'm not providing the data in the right format, but I'm not sure what it is, or where its documented.
Possibly helpful links:
How to add meta_data to the a WooCommerce customer
https://github.com/woocommerce/woocommerce/issues/18810
https://github.com/woocommerce/woocommerce/wiki/WC-CLI-Overview
The syntax is
--meta_data='[{"key": "test_meta1","value": "test_meta_value"}]'
eg
sudo wp wc customer update 141 --meta_data='[{"key": "test_meta1","value": "test_meta_value"}]' --user=1
or
sudo wp wc product create --name="test4" --regular_price=10 --meta_data='[{"key": "test_meta1","value": "test_meta_value"}]' --user=1
will work

Compare Array of IPs with rsyslog

There is a list of IPs (their quantity is changing every few minutes) stored in a log-file. The logfile only contains unique IPs (sort -u):
IP-Pool.log [Example]:
192.168.1.1
192.168.1.2
10.1.1.0
.
.
I would like to filter occuring connection events with rsyslog and sort them by:
Events where $msg contains one IP of Array[IP-Pool-List]
Events where $msg doesn't contain any IP of Array[IP-Pool-List]
Therefore I would have to put the IPs into an array so they can be compared but I haven't found a way to do so.
if $msg contains 'connection-event-id' then {
if $msg contains 'Array[IP-Pool-List] then {
-/var/log/event_contains_ip.log
STOP
}
else{
-/var/log/event_doesnt_contain_ip.log
STOP
}
}
Would I also have to restart the rsyslogd service in order to refresh the array [IP-Pool-List], since the file is changing every few minutes ?
Is there a way to solve this with rsyslog, or is there an easier/better way to do this ?
EDIT
I used crontab and inotifywait to keep the IP-Pool-File up to date.
#reboot inotifywait -q -m -e modify /var/log/client-ips.log |
while read -r filename events; do sort -u /var/log/client-ips.log
-o /var/log/ips-unique.log ;done
I also asked this question via mail to the "rsyslog-community" their contact mail is listed at the bottom of the rsyslog documentation (https://lists.adiscon.net/mailman/listinfo/rsyslog)
They gave me the advise to use "Lookup-Tables" to solve this. Currently reading how to use them correctly. Since I am a slow learner, this should take a while.
EDIT 2
A new plan is starting to form:
To get Lookup-Table going, I need to create a JSON-File, which
contains the values I am going to build my filter with
Update the JSON File with "reload_lookup_table" or "JQ", whenever a new IP is added to the
IP-Pool-List.
Use RSYSLOG Lookup-Table to filter for the given IPs and split the
results into two seperate log files | Match.log | NoMatch.log

How to enable Spark in Datastax Datacenter?

Our current Datastax datacenter setup contain 6 nodes in which both Solr and graph
enabled
root#ip-10-10-5-36:~# cat /etc/default/dse | grep -E 'SOLR_ENABLED|GRAPH_ENABLED'
GRAPH_ENABLED=1
SOLR_ENABLED=1
root#ip-10-10-5-36:~# nodetool status
Datacenter: SearchGraph
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN 10.10.5.56 456.58 MiB 1 ? 936a1ac0-6d5e-4a94-8953-d5b5a2016b92 rack1
UN 10.10.5.46 406.24 MiB 1 ? 3f41dc2a-2672-47a1-90b5-a7c2bf17fb50 rack1
UN 10.10.5.76 392.99 MiB 1 ? 29f8fe44-3431-465e-b682-5d24e37d41d7 rack2
UN 10.10.5.66 414.16 MiB 1 ? 1f7de531-ff51-4581-bdb8-d9a686f1099e rack2
UN 10.10.5.86 424.3 MiB 1 ? 27d37833-56c8-44bd-bac0-7511b8bd74e8 rack2
UN 10.10.5.36 511.44 MiB 1 ? 0822145f-4225-4ad3-b2be-c995cc230830 rack1
We are planning to implement spark in our existing datacenter. My question is
1) Will enabling spark affect existing data and service in datastax ?.
2) Or instead of enabling SPARK_ENABLED=1, did we need to setup separate
datacenter for Spark ?
Updated :
3) How DC1 and DC2 connect each other in ring, is it based on same Cluster
name specified in cluster_name: parameter.
Conf file : /etc/dse/cassandra/cassandra.yaml
4) Is there any separate configuration need to specify spark master in data
center.
5) Did i need to specify SearchGraph (DC1) seed ip in Spark(DC2) seed
configuration section ? Or just Spark seed ip only need to specify in DC2
Configuration section(cassandra:yaml)
It's recommended to create separate datacenter for DSE Analytics. The full process is described in documentation.
to augment Alex's answer, this will depend if you'd like to execute Graph Analytics or not. What type of Spark work will be preformed when it's enabled?

How can I tell how many objects I've stored in an S3 bucket?

Unless I'm missing something, it seems that none of the APIs I've looked at will tell you how many objects are in an <S3 bucket>/<folder>. Is there any way to get a count?
Using AWS CLI
aws s3 ls s3://mybucket/ --recursive | wc -l
or
aws cloudwatch get-metric-statistics \
--namespace AWS/S3 --metric-name NumberOfObjects \
--dimensions Name=BucketName,Value=BUCKETNAME \
Name=StorageType,Value=AllStorageTypes \
--start-time 2016-11-05T00:00 --end-time 2016-11-05T00:10 \
--period 60 --statistic Average
Note: The above cloudwatch command seems to work for some while not for others. Discussed here: https://forums.aws.amazon.com/thread.jspa?threadID=217050
Using AWS Web Console
You can look at cloudwatch's metric section to get approx number of objects stored.
I have approx 50 Million products and it took more than an hour to count using aws s3 ls
There is a --summarize switch that shows bucket summary information (i.e. number of objects, total size).
Here's the correct answer using AWS cli:
aws s3 ls s3://bucketName/path/ --recursive --summarize | grep "Total Objects:"
Total Objects: 194273
See the documentation
Although this is an old question, and feedback was provided in 2015, right now it's much simpler, as S3 Web Console has enabled a "Get Size" option:
Which provides the following:
There is an easy solution with the S3 API now (available in the AWS cli):
aws s3api list-objects --bucket BUCKETNAME --output json --query "[length(Contents[])]"
or for a specific folder:
aws s3api list-objects --bucket BUCKETNAME --prefix "folder/subfolder/" --output json --query "[length(Contents[])]"
If you use the s3cmd command-line tool, you can get a recursive listing of a particular bucket, outputting it to a text file.
s3cmd ls -r s3://logs.mybucket/subfolder/ > listing.txt
Then in linux you can run a wc -l on the file to count the lines (1 line per object).
wc -l listing.txt
There is no way, unless you
list them all in batches of 1000 (which can be slow and suck bandwidth - amazon seems to never compress the XML responses), or
log into your account on S3, and go Account - Usage. It seems the billing dept knows exactly how many objects you have stored!
Simply downloading the list of all your objects will actually take some time and cost some money if you have 50 million objects stored.
Also see this thread about StorageObjectCount - which is in the usage data.
An S3 API to get at least the basics, even if it was hours old, would be great.
You can use AWS cloudwatch metrics for s3 to see exact count for each bucket.
2020/10/22
With AWS Console
Look at Metrics tab on your bucket
or:
Look at AWS Cloudwatch's metrics
With AWS CLI
Number of objects:
or:
aws s3api list-objects --bucket <BUCKET_NAME> --prefix "<FOLDER_NAME>" | wc -l
or:
aws s3 ls s3://<BUCKET_NAME>/<FOLDER_NAME>/ --recursive --summarize --human-readable | grep "Total Objects"
or with s4cmd:
s4cmd ls -r s3://<BUCKET_NAME>/<FOLDER_NAME>/ | wc -l
Objects size:
aws s3api list-objects --bucket <BUCKET_NAME> --output json --query "[sum(Contents[].Size), length(Contents[])]" | awk 'NR!=2 {print $0;next} NR==2 {print $0/1024/1024/1024" GB"}'
or:
aws s3 ls s3://<BUCKET_NAME>/<FOLDER_NAME>/ --recursive --summarize --human-readable | grep "Total Size"
or with s4cmd:
s4cmd du s3://<BUCKET_NAME>
or with CloudWatch metrics:
aws cloudwatch get-metric-statistics --metric-name BucketSizeBytes --namespace AWS/S3 --start-time 2020-10-20T16:00:00Z --end-time 2020-10-22T17:00:00Z --period 3600 --statistics Average --unit Bytes --dimensions Name=BucketName,Value=<BUCKET_NAME> Name=StorageType,Value=StandardStorage --output json | grep "Average"
2021 Answer
This information is now surfaced in the AWS dashboard. Simply navigate to the bucket and click the Metrics tab.
If you are using AWS CLI on Windows, you can use the Measure-Object from PowerShell to get the total counts of files, just like wc -l on *nix.
PS C:\> aws s3 ls s3://mybucket/ --recursive | Measure-Object
Count : 25
Average :
Sum :
Maximum :
Minimum :
Property :
Hope it helps.
Go to AWS Billing, then reports, then AWS Usage reports.
Select Amazon Simple Storage Service, then Operation StandardStorage.
Then you can download a CSV file that includes a UsageType of StorageObjectCount that lists the item count for each bucket.
From the command line in AWS CLI, use ls plus --summarize. It will give you the list of all of your items and the total number of documents in a particular bucket. I have not tried this with buckets containing sub-buckets:
aws s3 ls "s3://MyBucket" --summarize
It make take a bit long (it took listing my 16+K documents about 4 minutes), but it's faster than counting 1K at a time.
You can easily get the total count and the history if you go to the s3 console "Management" tab and then click on "Metrics"... Screen shot of the tab
One of the simplest ways to count number of objects in s3 is:
Step 1: Select root folder
Step 2: Click on Actions -> Delete (obviously, be careful - don't delete it)
Step 3: Wait for a few mins aws will show you number of objects and its total size.
As of November 18, 2020 there is now an easier way to get this information without taxing your API requests:
AWS S3 Storage Lens
The default, built-in, free dashboard allows you to see the count for all buckets, or individual buckets under the "Buckets" tab. There are many drop downs to filter and sort almost any reasonable metric you would look for.
In s3cmd, simply run the following command (on a Ubuntu system):
s3cmd ls -r s3://mybucket | wc -l
None of the APIs will give you a count because there really isn't any Amazon specific API to do that. You have to just run a list-contents and count the number of results that are returned.
You can just execute this cli command to get the total file count in the bucket or a specific folder
Scan whole bucket
aws s3api list-objects-v2 --bucket testbucket | grep "Key" | wc -l
aws s3api list-objects-v2 --bucket BUCKET_NAME | grep "Key" | wc -l
you can use this command to get in details
aws s3api list-objects-v2 --bucket BUCKET_NAME
Scan a specific folder
aws s3api list-objects-v2 --bucket testbucket --prefix testfolder --start-after testfolder/ | grep "Key" | wc -l
aws s3api list-objects-v2 --bucket BUCKET_NAME --prefix FOLDER_NAME --start-after FOLDER_NAME/ | grep "Key" | wc -l
Select the bucket/Folder-> Click on actions -> Click on Calculate Total Size
The api will return the list in increments of 1000. Check the IsTruncated property to see if there are still more. If there are, you need to make another call and pass the last key that you got as the Marker property on the next call. You would then continue to loop like this until IsTruncated is false.
See this Amazon doc for more info: Iterating Through Multi-Page Results
Old thread, but still relevant as I was looking for the answer until I just figured this out. I wanted a file count using a GUI-based tool (i.e. no code). I happen to already use a tool called 3Hub for drag & drop transfers to and from S3. I wanted to know how many files I had in a particular bucket (I don't think billing breaks it down by buckets).
So, using 3Hub,
- list the contents of the bucket (looks basically like a finder or explorer window)
- go to the bottom of the list, click 'show all'
- select all (ctrl+a)
- choose copy URLs from right-click menu
- paste the list into a text file (I use TextWrangler for Mac)
- look at the line count
I had 20521 files in the bucket and did the file count in less than a minute.
I used the python script from scalablelogic.com (adding in the count logging). Worked great.
#!/usr/local/bin/python
import sys
from boto.s3.connection import S3Connection
s3bucket = S3Connection().get_bucket(sys.argv[1])
size = 0
totalCount = 0
for key in s3bucket.list():
totalCount += 1
size += key.size
print 'total size:'
print "%.3f GB" % (size*1.0/1024/1024/1024)
print 'total count:'
print totalCount
The issue #Mayank Jaiswal mentioned about using cloudwatch metrics should not actually be an issue. If you aren't getting results, your range just might not be wide enough. It's currently Nov 3, and I wasn't getting results no matter what I tried. I went to the s3 bucket and looked at the counts and the last record for the "Total number of objects" count was Nov 1.
So here is how the cloudwatch solution looks like using javascript aws-sdk:
import aws from 'aws-sdk';
import { startOfMonth } from 'date-fns';
const region = 'us-east-1';
const profile = 'default';
const credentials = new aws.SharedIniFileCredentials({ profile });
aws.config.update({ region, credentials });
export const main = async () => {
const cw = new aws.CloudWatch();
const bucket_name = 'MY_BUCKET_NAME';
const end = new Date();
const start = startOfMonth(end);
const results = await cw
.getMetricStatistics({
// #ts-ignore
Namespace: 'AWS/S3',
MetricName: 'NumberOfObjects',
Period: 3600 * 24,
StartTime: start.toISOString(),
EndTime: end.toISOString(),
Statistics: ['Average'],
Dimensions: [
{ Name: 'BucketName', Value: bucket_name },
{ Name: 'StorageType', Value: 'AllStorageTypes' },
],
Unit: 'Count',
})
.promise();
console.log({ results });
};
main()
.then(() => console.log('Done.'))
.catch((err) => console.error(err));
Notice two things:
The start of the range is set to the beginning of the month
The period is set to a day. Any less and you might get an error saying that you have requested too many data points.
aws s3 ls s3://bucket-name/folder-prefix-if-any --recursive | wc -l
Here's the boto3 version of the python script embedded above.
import sys
import boto3
s3 = boto3.resource("s3")
s3bucket = s3.Bucket(sys.argv[1])
size = 0
totalCount = 0
for key in s3bucket.objects.all():
totalCount += 1
size += key.size
print("total size:")
print("%.3f GB" % (size * 1.0 / 1024 / 1024 / 1024))
print("total count:")
print(totalCount)
3Hub is discontinued. There's a better solution, you can use Transmit (Mac only), then you just connect to your bucket and choose Show Item Count from the View menu.
You can download and install s3 browser from http://s3browser.com/. When you select a bucket in the center right corner you can see the number of files in the bucket. But, the size it shows is incorrect in the current version.
Gubs
You can potentially use Amazon S3 inventory that will give you list of objects in a csv file
Can also be done with gsutil du (Yes, a Google Cloud tool)
gsutil du s3://mybucket/ | wc -l
If you're looking for specific files, let's say .jpg images, you can do the following:
aws s3 ls s3://your_bucket | grep jpg | wc -l

Find long running query on Informix?

How can you find out what are the long running queries are on Informix database server? I have a query that is using up the CPU and want to find out what the query is.
If the query is currently running watch the onstat -g act -r 1 output and look for items with an rstcb that is not 0
Running threads:
tid tcb rstcb prty status vp-class name
106 c0000000d4860950 0 2 running 107soc soctcppoll
107 c0000000d4881950 0 2 running 108soc soctcppoll
564457 c0000000d7f28250 c0000000d7afcf20 2 running 1cpu CDRD_10
In this example the third row is what is currently running. If you have multiple rows with non-zero rstcb values then watch for a bit looking for the one that is always or almost always there. That is most likely the session that your looking for.
c0000000d7afcf20 is the address that we're interested in for this example.
Use onstat -u | grep c0000000d7afcf20 to find the session
c0000000d7afcf20 Y--P--- 22887 informix - c0000000d5b0abd0 0 5 14060 3811
This gives you the session id which in our example is 22887. Use onstat -g ses 22887
to list info about that session. In my example it's a system session so there's nothing to see in the onstat -g ses output.
That's because the suggested answer is for DB2, not Informix.
The sysmaster database (a virtual relational database of Informix shared memory) will probably contain the information you seek. These pages might help you get started:
http://docs.rinet.ru/InforSmes/ch22/ch22.htm
http://www.informix.com.ua/articles/sysmast/sysmast.htm
Okay it took me a bit to work out how to connect to sysmaster. The JDBC connection string is:
jdbc:informix-sqli://dbserver.local:1526/sysmaster:INFORMIXSERVER=mydatabase
Where the port number is the same as when you are connecting to the actual database. That is if your connection string is:
jdbc:informix-sqli://database:1541/crm:INFORMIXSERVER=crmlive
Then the sysmaster connection string is:
jdbc:informix-sqli://database:1541/sysmaster:INFORMIXSERVER=crmlive
Also found this wiki page that contains a number of SQL queries for operating on the sysmaster tables.
SELECT ELAPSED_TIME_MIN,SUBSTR(AUTHID,1,10) AS AUTH_ID,
AGENT_ID, APPL_STATUS,SUBSTR(STMT_TEXT,1,20) AS SQL_TEXT
FROM SYSIBMADM.LONG_RUNNING_SQL
WHERE ELAPSED_TIME_MIN > 0
ORDER BY ELAPSED_TIME_MIN DESC
Credit: SQL to View Long Running Queries

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