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| Inisah |
 Posted: Fri Mar 21, 2014 8:28 am Post subject: Purpose of /var/mqsi/common/locks |
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Apprentice
Joined: 21 Mar 2014
Posts: 44
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| What do we need to infer if we see some new updates in /var/mqsi/common/locks |
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| Vitor |
| Posted: Fri Mar 21, 2014 8:32 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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That WMB is using it's internal file space because it wants to.
Are there any errors or issues associated with this that's making you look into this?
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Honesty is the best policy.
Insanity is the best defence. |
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| Inisah |
| Posted: Fri Mar 21, 2014 8:43 am Post subject: |
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Apprentice
Joined: 21 Mar 2014
Posts: 44
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| Yes Vitor. I was trying to run a trace and there was no response. It is in hung state.Was checking the logs to see if there was any issue with broker or EG. Then I noticed that there some updates in the lock file |
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| bruce2359 |
| Posted: Fri Mar 21, 2014 8:44 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Locks are used to serialize on son-shareable resources. The lock must be acquired before the resource can be used. A lock is usually represented by a word in storage, but may be stored on disk for persistence. Most server apps use locks- db2, oracle, mq, etc..
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Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| Vitor |
| Posted: Fri Mar 21, 2014 9:06 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Inisah wrote: |
| I was trying to run a trace and there was no response. It is in hung state.Was checking the logs to see if there was any issue with broker or EG. Then I noticed that there some updates in the lock file |
User trace? Service trace?
So as my worthy associate confirms, the locks directory is used by WMB because it wants to.
I would theorise one of the resources involved either couldn't be locked or couldn't be released. Was the server under particular load at the time? What other software runs on the server which could be contending with WMB? Is it all attempts to run a trace that fail, or only a trace against a specific flow?
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Inisah |
| Posted: Fri Mar 21, 2014 9:23 am Post subject: |
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Apprentice
Joined: 21 Mar 2014
Posts: 44
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| It was a user trace against a single flow. We do not have any other softwares running on the machine other than MQ and MB. Server was running normally. |
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| bruce2359 |
| Posted: Fri Mar 21, 2014 10:21 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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If the problem persists, open a PMR.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| Vitor |
| Posted: Fri Mar 21, 2014 10:25 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Inisah wrote: |
| It was a user trace against a single flow. |
Can you successfully trace other flows?
_________________
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Insanity is the best defence. |
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