There are two CouchDB servers and I am using variable in Grafana to visualize some metrics, issue is query with variable end up with wrong prasing:
couchdb_server_node_info{instance="10\\.10\\.10\\.199:9984"}
I do not why it includes the slash, that leads to empty result. am I using correct query "label_values"?
Here is my variable setting, which the result shows two servers:
and here is how I use it:
it is fixed! I had to disable Include All Option
Related
I'm using a lookup stage as a source to fetch some data and i want to pass that output as the input to the next lookup stage. I tried adding #activity('Step1').output.firstRow.Col and it failed with scalar variable was not being declared. Also tried with #{activity('Step1').output.firstRow.col} which failed and the log shows only default expressions supported. Please help if it is possible.
I have accomplished this using dataflow, but considering the performance i would like to know if it can be done in a pipeline.
Please try this：
Query:select * from dbo.test5 where col = '#{activity('Lookup1').output.firstRow.col}'
Output:
I am using container engine, and my pods are hosted there.
I am trying to fetch logs, using log api :
http://localhost:8000/api/v1/namespaces/app-test/pods/designer-0/log?tailLines=100&sinceTime=2017-09-17T10:47:58Z
if i used both the query params separately, it works and show the proper result, but if i am using it simultaneously only the top 100 logs are returning, the sinceTime param is get ignored.
my scenario is, i need a log from a specific time, in a chunk like, 100 lines, 100 lines.. like this.
I am not sure, whether it is a bug, or it is not implemented.
I found this from the api reference manual
https://kubernetes.io/docs/api-reference/v1.6/
tailLines - If set, the number of lines from the end of the logs to
show. If not specified, logs are shown from the creation of the
container or sinceSeconds or sinceTime
So, that means if you specify tailLines, it start from the end. I dont see any option explicitly mentioned other than limitBytes. But you will have to play around with it as it does not guarantee number of lines.
tailLines=X tells the server to start that many lines from the end
sinceTime tells the server to start from the specified time
the options are mutually exclusive
Thanks All,
I have later on recognized that, it is not ignoring the sinceTime, as the TailLines intended functionality is return the lines from the last.
So, if i mentioned the sinceTime= 10 PM yesterday, it will return the records from that time..And if also tailLines, is mentioned, so it will return the recent logs from that chunk.
So, it was working as expected. I need to play with LimitBytes for getting the logs in chunk, from that time, Instead of full logs.
I am stuck on a problem and I am not sure what is the best way to solve it. I have a date column that I want to select and I want to fetch it as a string. Which is great, node-oracledb module has this option with fetchAsString mehotd. But it fetches the date like this for example 10-JAN-16 and I want to fetch it like this 10-01-2016. Is there a way to do that from the node-oracledb module, or I should modify the date after I get the result from the query?
UPDATE: I mean solution without to_char in the query and without query modifications
Check out this section of my series on Working with Dates in JavaScript, JSON, and Oracle Database:
https://dzone.com/articles/working-with-dates-using-the-nodejs-driver
The logon trigger shows an example of using alter session to set the default date format. Keep in mind that there is NLS_DATE_FORMAT, NLS_TIMESTAMP_FORMAT, NLS_TIMESTAMP_TZ_FORMAT.
I only show NLS_TIMESTAMP_TZ_FORMAT because I convert to that type in the examples that follow as I need to do some time zone conversion for the date format I'm using.
Another way to set the NLS parameters is to use environment variables of the same name. Note that this method will not work unless you set the NLS_LANG environment variable as well.
I'm trying to find out what configuration parameters my spark app is executing with. Is there a way to get all parameters, including the default ones?
E.g. if you execute "set;" on a Hive console, it'll list full Hive configuration. I'm looking for an analogous action/command for Spark.
UPDATE:
I've tried the solution proposed by karthik manchala. I'm getting these results. As far as I know, these are not all parameters. E.g. this one spark.shuffle.memoryFraction (and a lot more) is missing.
scala> println(sc.getConf.getAll.deep.mkString("\n"));
(spark.eventLog.enabled,true)
(spark.dynamicAllocation.minExecutors,1)
(spark.org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.param.PROXY_HOSTS,...)
(spark.repl.class.uri,http://...:54157)
(spark.tachyonStore.folderName,spark-46d43c17-b0b3-4b61-a017-a186075849ca)
(spark.org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.param.PROXY_URI_BASES,http://...)
(spark.driver.host,...l)
(spark.yarn.jar,local:/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/spark/lib/spark-assembly.jar)
(spark.yarn.historyServer.address,http://...:18088)
(spark.dynamicAllocation.executorIdleTimeout,60)
(spark.serializer,org.apache.spark.serializer.KryoSerializer)
(spark.authenticate,false)
(spark.fileserver.uri,http://...:33681)
(spark.app.name,Spark shell)
(spark.dynamicAllocation.maxExecutors,30)
(spark.dynamicAllocation.initialExecutors,3)
(spark.ui.filters,org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter)
(spark.driver.port,46781)
(spark.shuffle.service.enabled,true)
(spark.master,yarn-client)
(spark.eventLog.dir,hdfs://.../user/spark/applicationHistory)
(spark.app.id,application_1449242356422_80431)
(spark.driver.appUIAddress,http://...:4040)
(spark.driver.extraLibraryPath,/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/hadoop/lib/native)
(spark.dynamicAllocation.schedulerBacklogTimeout,1)
(spark.shuffle.service.port,7337)
(spark.executor.id,<driver>)
(spark.jars,)
(spark.dynamicAllocation.enabled,true)
(spark.executor.extraLibraryPath,/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/hadoop/lib/native)
(spark.yarn.am.extraLibraryPath,/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/hadoop/lib/native)
You can do the following:
sparkContext.getConf().getAll();
I currently have a VM running Titan over a local Cassandra backend and would like the ability to use ElasticSearch to index strings using CONTAINS matches and regular expressions. Here's what I have so far:
After titan.sh is run, a Groovy script is used to load in the data from separate vertex and edge files. The first stage of this script loads the graph from Titan and sets up the ES properties:
config.setProperty("storage.backend","cassandra")
config.setProperty("storage.hostname","127.0.0.1")
config.setProperty("storage.index.elastic.backend","elasticsearch")
config.setProperty("storage.index.elastic.directory","db/es")
config.setProperty("storage.index.elastic.client-only","false")
config.setProperty("storage.index.elastic.local-mode","true")
The second part of the script sets up the indexed types:
g.makeKey("property").dataType(String.class).indexed("elastic",Edge.class).make();
The third part loads in the data from the CSV files, this has been tested and works fine.
My problem is, I don't seem to be able to use the ElasticSearch functions when I do a Gremlin query. For example:
g.E.has("property",CONTAINS,"test")
returns 0 results, even though I know this field contains the string "test" for that property at least once. Weirder still, when I change CONTAINS to something that isn't recognised by ElasticSearch I get a "no such property" error. I can also perform exact string matches and any numerical comparisons including greater or less than, however I expect the default indexing method is being used over ElasticSearch in these instances.
Due to the lack of errors when I try to run a more advanced ES query, I am at a loss on what is causing the problem here. Is there anything I may have missed?
Thanks,
Adam
I'm not quite sure what's going wrong in your code. From your description everything looks fine. Can you try the follwing script (just paste it into your Gremlin REPL):
config = new BaseConfiguration()
config.setProperty("storage.backend","inmemory")
config.setProperty("storage.index.elastic.backend","elasticsearch")
config.setProperty("storage.index.elastic.directory","/tmp/es-so")
config.setProperty("storage.index.elastic.client-only","false")
config.setProperty("storage.index.elastic.local-mode","true")
g = TitanFactory.open(config)
g.makeKey("name").dataType(String.class).make()
g.makeKey("property").dataType(String.class).indexed("elastic",Edge.class).make()
g.makeLabel("knows").make()
g.commit()
alice = g.addVertex(["name":"alice"])
bob = g.addVertex(["name":"bob"])
alice.addEdge("knows", bob, ["property":"foo test bar"])
g.commit()
// test queries
g.E.has("property",CONTAINS,"test")
g.query().has("property",CONTAINS,"test").edges()
The last 2 lines should return something like e[1t-4-1w][4-knows-8]. If that works and you still can't figure out what's wrong in your code, it would be good if you can share your full code (e.g. in Github or in a Gist).
Cheers,
Daniel