journal

Estimate the number of USN records on NTFS volume

由 ♀尐吖头ヾ 提交于 2019-11-29 02:34:59
When the USN journal is used for the first time, the volume's entire set of USN records must be enumerated using the FSCTL_ENUM_USN_DATA control code. This is usually a lengthy operation. Is there a way to estimate the number of records on the volume prior to running it, so progress can be displayed? I'm guessing the USN data for the entire volume is generated from the MFT, with one record per file (approximately). So perhaps a way to estimate the number of active files in the MFT would work. You can use FSCTL_GET_NTFS_VOLUME_DATA to get the length in bytes of the MFT. If you compare this to

Why getting error mongod dead but subsys locked and Insufficient free space for journal files on Linux?

由 僤鯓⒐⒋嵵緔 提交于 2019-11-28 03:03:39
I have installed mongo-10gen mongo-10gen-server on Linux CentOS server. I followed the steps from Link . I have configured /etc/mongod.conf as - logpath=/var/log/mongo/mongod.log port=27017 dbpath=/var/lib/mongo I have set port 27017 for mongo in iptables . To start mongo I used commands - service mongod start and mongo It get started well, but after few days I am getting the error - Tue Jan 29 08:41:54 [initandlisten] ERROR: Insufficient free space for journal files Tue Jan 29 08:41:54 [initandlisten] Please make at least 3379MB available in /var/lib/mongo/journal or use --smallfiles Tue Jan

How to disable Android SQLite Journal file?

由 穿精又带淫゛_ 提交于 2019-11-28 01:11:49
问题 I am using transactions to insert multiple rows into table. But, I still see temporary sqlite-journal file being created on SD Card along with sqlite table. How do I disable creation of journal file? Thanks 回答1: You can elect to keep the journal in memory so that no -journal file is created: pragma journal_mode=memory; Note that you need to run this each time you open the database. I recommend that you read the following to get a better idea of what is going on: http://www.sqlite.org/pragma

Why getting error mongod dead but subsys locked and Insufficient free space for journal files on Linux?

由 本秂侑毒 提交于 2019-11-27 05:02:44
问题 I have installed mongo-10gen mongo-10gen-server on Linux CentOS server. I followed the steps from Link. I have configured /etc/mongod.conf as - logpath=/var/log/mongo/mongod.log port=27017 dbpath=/var/lib/mongo I have set port 27017 for mongo in iptables . To start mongo I used commands - service mongod start and mongo It get started well, but after few days I am getting the error - Tue Jan 29 08:41:54 [initandlisten] ERROR: Insufficient free space for journal files Tue Jan 29 08:41:54

Shred: Doesn't work on Journaled FS?

由 荒凉一梦 提交于 2019-11-27 03:23:37
问题 Shred documentation says shred is "not guaranteed to be effective" (See bottom). So if I shred a document on my Ext3 filesystem or on a Raid, what happens? Do I shred part of the file? Does it sometimes shred the whole thing and sometimes not? Can it shred other stuff? Does it only shred the file header? CAUTION: Note that shred relies on a very important assumption: that the file system overwrites data in place. This is the traditional way to do things, but many modern file system designs do
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