[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-04-24 Thread stack (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

stack updated HBASE-4393:
-

   Resolution: Fixed
Fix Version/s: 0.96.0
 Release Note: Tool to check cluster.  See $ ./bin/hbase 
org.apache.hadoop.hbase.tool.Canary -help for how to use.
 Hadoop Flags: Reviewed
   Status: Resolved  (was: Patch Available)

Committed to trunk.  Thanks for the patch Matteo. I tried it out.  Does the 
basics.  Nice. Thanks.

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Matteo Bertozzi
 Fix For: 0.96.0

 Attachments: Canary-v0.java, HBASE-4393-v0.patch, HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-04-24 Thread stack (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

stack updated HBASE-4393:
-

Fix Version/s: 0.94.0

Committed to 0.94 (thought you might like this Lars).

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Matteo Bertozzi
 Fix For: 0.94.0, 0.96.0

 Attachments: Canary-v0.java, HBASE-4393-v0.patch, HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-04-06 Thread Matteo Bertozzi (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Matteo Bertozzi updated HBASE-4393:
---

Attachment: HBASE-4393-v0.patch

use LOG as default Sink, renamed methods as suggested and removed the 
BasicParser.

@Stack
What is your idea, about integrating hbck? some sort of automatic recovery in 
some codition?

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Matteo Bertozzi
 Attachments: Canary-v0.java, HBASE-4393-v0.patch, HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-04-06 Thread Matteo Bertozzi (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Matteo Bertozzi updated HBASE-4393:
---

Attachment: (was: HBASE-4393-v0.patch)

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Matteo Bertozzi
 Attachments: Canary-v0.java, HBASE-4393-v0.patch, HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-04-06 Thread Matteo Bertozzi (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Matteo Bertozzi updated HBASE-4393:
---

Attachment: HBASE-4393-v0.patch

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Matteo Bertozzi
 Attachments: Canary-v0.java, HBASE-4393-v0.patch, HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-04-01 Thread Matteo Bertozzi (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Matteo Bertozzi updated HBASE-4393:
---

Status: Patch Available  (was: Open)

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Matteo Bertozzi
 Attachments: Canary-v0.java, HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-03-24 Thread Matteo Bertozzi (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Matteo Bertozzi updated HBASE-4393:
---

Attachment: HBaseCanary.java

I've attached a simple draft canary tool, that foreach table (or for the 
specified tables) tries to fetch a row from each region server, collects and 
print failures and times.

should this tool be a service that collect/expose stats for each region/column 
family or just a tool to get an idea on the cluster state?

In case this should be just a tool, any idea on the output format, the metrics 
that we want collect and output?

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Amandeep Khurana
 Attachments: HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-03-24 Thread Lars Hofhansl (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Lars Hofhansl updated HBASE-4393:
-

Fix Version/s: 0.94.0

I would like to get this into 0.94.
This needs some of usage description so that folks can find out what you are 
supposed to pass on the command line.

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Amandeep Khurana
 Fix For: 0.94.0

 Attachments: HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

2012-03-24 Thread Lars Hofhansl (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Lars Hofhansl updated HBASE-4393:
-

Fix Version/s: (was: 0.94.0)

You are more iron-handy than me, stack. Your points are well taken, 
unscheduling.

 Implement a canary monitoring program
 -

 Key: HBASE-4393
 URL: https://issues.apache.org/jira/browse/HBASE-4393
 Project: HBase
  Issue Type: New Feature
  Components: monitoring
Affects Versions: 0.92.0
Reporter: Todd Lipcon
Assignee: Amandeep Khurana
 Attachments: HBaseCanary.java


 This JIRA is to implement a standalone program that can be used to do canary 
 monitoring of a running HBase cluster. This program would gather a list of 
 the regions in the cluster, then iterate over them doing lightweight 
 operations (eg short scans) to provide metrics about latency as well as alert 
 on availability issues.

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