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MarkLogic - Database size units

0

I am using below query to return the size of each database in MarkLogic server. The query is returning data but not sure what units (KB/MB/GB etc) the query is returning. I tried to find approximate size of each collection manually to add up, but somehow the numbers are not matching. Does MarkLogic apply compression by default on the documents?

xquery version "1.0-ml";

declare namespace forest = "http://marklogic.com/xdmp/status/forest";

for $db-id in xdmp:databases()
let $db-name := xdmp:database-name($db-id)
let $db-size :=
 fn:sum(
 for $f-id in xdmp:database-forests($db-id)
 let $f-status := xdmp:forest-status($f-id)
 let $space := $f-status/forest:device-space
 let $f-name := $f-status/forest:forest-name
 let $f-size :=
 fn:sum(
 for $stand in $f-status/forest:stands/forest:stand
 let $stand-size := $stand/forest:disk-size/fn:data(.)
 return $stand-size
 )
 return $f-size
 )
order by $db-size descending
return $db-name || " = " || $db-size

marklogic-9

share|improve this question

asked 2 days ago

BhanuBhanu

1786

add a comment | 

0

I am using below query to return the size of each database in MarkLogic server. The query is returning data but not sure what units (KB/MB/GB etc) the query is returning. I tried to find approximate size of each collection manually to add up, but somehow the numbers are not matching. Does MarkLogic apply compression by default on the documents?

xquery version "1.0-ml";

declare namespace forest = "http://marklogic.com/xdmp/status/forest";

for $db-id in xdmp:databases()
let $db-name := xdmp:database-name($db-id)
let $db-size :=
 fn:sum(
 for $f-id in xdmp:database-forests($db-id)
 let $f-status := xdmp:forest-status($f-id)
 let $space := $f-status/forest:device-space
 let $f-name := $f-status/forest:forest-name
 let $f-size :=
 fn:sum(
 for $stand in $f-status/forest:stands/forest:stand
 let $stand-size := $stand/forest:disk-size/fn:data(.)
 return $stand-size
 )
 return $f-size
 )
order by $db-size descending
return $db-name || " = " || $db-size

marklogic-9

share|improve this question

asked 2 days ago

BhanuBhanu

1786

add a comment | 

I am using below query to return the size of each database in MarkLogic server. The query is returning data but not sure what units (KB/MB/GB etc) the query is returning. I tried to find approximate size of each collection manually to add up, but somehow the numbers are not matching. Does MarkLogic apply compression by default on the documents?

xquery version "1.0-ml";

declare namespace forest = "http://marklogic.com/xdmp/status/forest";

for $db-id in xdmp:databases()
let $db-name := xdmp:database-name($db-id)
let $db-size :=
 fn:sum(
 for $f-id in xdmp:database-forests($db-id)
 let $f-status := xdmp:forest-status($f-id)
 let $space := $f-status/forest:device-space
 let $f-name := $f-status/forest:forest-name
 let $f-size :=
 fn:sum(
 for $stand in $f-status/forest:stands/forest:stand
 let $stand-size := $stand/forest:disk-size/fn:data(.)
 return $stand-size
 )
 return $f-size
 )
order by $db-size descending
return $db-name || " = " || $db-size

marklogic-9

share|improve this question

asked 2 days ago

BhanuBhanu

1786

xquery version "1.0-ml";

declare namespace forest = "http://marklogic.com/xdmp/status/forest";

for $db-id in xdmp:databases()
let $db-name := xdmp:database-name($db-id)
let $db-size :=
 fn:sum(
 for $f-id in xdmp:database-forests($db-id)
 let $f-status := xdmp:forest-status($f-id)
 let $space := $f-status/forest:device-space
 let $f-name := $f-status/forest:forest-name
 let $f-size :=
 fn:sum(
 for $stand in $f-status/forest:stands/forest:stand
 let $stand-size := $stand/forest:disk-size/fn:data(.)
 return $stand-size
 )
 return $f-size
 )
order by $db-size descending
return $db-name || " = " || $db-size

share|improve this question

asked 2 days ago

BhanuBhanu

1786

share|improve this question

asked 2 days ago

BhanuBhanu

1786

asked 2 days ago

BhanuBhanu

1786

asked 2 days ago

BhanuBhanu

1786

1 Answer
1

active

oldest

votes

0

The measure of unit shown in Admin UI on the Cluster Status page is always MB, and the numbers shown there match what your code returns.

MarkLogic doesn't really apply compression, but it does have complex logic to take data, and structure information apart for each document. There is some gain when you have repetition in your documents. The more repetition, which also includes element names, the larger the difference.

HTH!

share|improve this answer

answered yesterday

grtjngrtjn

15.8k11830

add a comment | 

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0

The measure of unit shown in Admin UI on the Cluster Status page is always MB, and the numbers shown there match what your code returns.

MarkLogic doesn't really apply compression, but it does have complex logic to take data, and structure information apart for each document. There is some gain when you have repetition in your documents. The more repetition, which also includes element names, the larger the difference.

HTH!

share|improve this answer

answered yesterday

grtjngrtjn

15.8k11830

add a comment | 

0

The measure of unit shown in Admin UI on the Cluster Status page is always MB, and the numbers shown there match what your code returns.

MarkLogic doesn't really apply compression, but it does have complex logic to take data, and structure information apart for each document. There is some gain when you have repetition in your documents. The more repetition, which also includes element names, the larger the difference.

HTH!

share|improve this answer

answered yesterday

grtjngrtjn

15.8k11830

add a comment | 

The measure of unit shown in Admin UI on the Cluster Status page is always MB, and the numbers shown there match what your code returns.

MarkLogic doesn't really apply compression, but it does have complex logic to take data, and structure information apart for each document. There is some gain when you have repetition in your documents. The more repetition, which also includes element names, the larger the difference.

HTH!

share|improve this answer

answered yesterday

grtjngrtjn

15.8k11830

share|improve this answer

answered yesterday

grtjngrtjn

15.8k11830

answered yesterday

grtjngrtjn

15.8k11830

answered yesterday

grtjngrtjn

15.8k11830