Have a conversation once or have it over and over forever

When a team is collaborating to create software, there are inevitably issues that come up in “big picture” areas like architecture and process. There are two ways to deal with these:

  1. Take some time out from the daily grind and discuss the issue until consensus is reached and a decision is made (and hopefully documented!) for how to handle stuff going forward.
  2. Don’t take the time to think (“We don’t have the luxury of time for thinking!”) and continually have mini-discussions about it (sometimes with other people; sometimes internally within people’s minds) every time it comes up again forever and ever…

I know which one I prefer. How about you…?

There is no reason ever to have the same thought twice,
unless you like having that thought” – David Allen

Carbonite woes

I’ve been using Carbonite for a while and it’s worked well most of this time (though how do you know if a backup tool is working?), but recently I’ve started to notice a few issues with it and I may end up switching to another cloud backup service (I’m currently evaluating CrashPlan and another part of me is seriously considering going old-school and using good ol’ rsync or maybe just cloning to a bunch of spare hard drives and then leaving them with friends and family). Some if these issues might not be serious, but when it comes to a backup tool, it makes me nervous when I see weird unexplainable behavior. I like my backup software to just work. And that is why I’m detailing everything weird I saw, even if some of it is the inevitable stuff that you get when you peek too closely into the sausage factory.

Issue 1: Backups can stop progressing; no alerts to tell me this

A couple of weeks ago, I noticed that Carbonite had been “stuck” – there were about 1500 files that were pending backup and that number was not shrinking.

I happened to notice this because we had taken a lot of photos and I decided to check whether they were getting backed up. If I had not checked and our hard drive crashed, that could’ve been really bad.

This stuck backup lead to me spending quite a few hours measuring, diagnosing, disk repairing, and tweaking and it looks like things are working better now (I have only 42 files pending backup now). It also lead to the discovery of other issues that are detailed below. But the main point I want to make here is that I should not have to notice that backups have stalled. Carbonite should detect that it is not progressing and send me an alert email and/or popup on my screen.

Issue 2: Carbonite not backing up because CPU Idle is too low (and Carbonite is using the bulk of the CPU)

This is possibly one of the big reasons for the Issue 1.

When my backup wasn’t progressing, I looked for clues by looking at /Library/Application Support/Carbonite/Data/Carbonite.log and noticed that CPU Idle was almost never at the CPU Idle target of 75%. I’m wondering if this is causing Carbonite to not back up? I tried quitting every program on my computer (including all sorts of menu bar apps and background apps such as Cloud.app, Dropbox, Evernote, Jenkins, etc). The only thing that is using a lot of CPU, according to Activity Monitor, is Carbonite itself.

At this point, I started looking at what Carbonite was looking at using the fs_usage command.

Ideally, I shouldn’t have to quit every program on my computer in order to get the CPU usage low enough for Carbonite to be able to do backups. The beauty of a cloud backup app like Carbonite is that it just should just do its thing in the background without me having to change my workflow. When it’s working well, this is how it works. I’m not sure of why it has been stumbling lately.

Issue 3: Internal program errors in the logs

I also noticed some internal errors in the log and I wonder if Carbonite is crashing when it tries to back up certain files and thus is unable to make progress – e.g.:

1346811842  = 19:24:02
1346811842  @ 2954915840: Backup progress: completed 38%, file counts last 2 22:10:34 All: 3617 (1081M bytes) Unique: 3225 (731M bytes), Compressed: 848M bytes.
1346811842  @ 2954915840: Backup progress: remaining time unknown, file counts All: 563085 (217G bytes), Pending: 1396 (1767M bytes).
1346811842  @ 2954915840: Backup progress: task seconds last minute, Active: 0 (0%) Response Waiting: 61 (100%) Send Waiting: 0 (0%) Sending: 61 (100%) 
1346811873  ! 2957045760: Internal program error: ASSERT "LogFile.SetFilePointer(dwBufferPosition)" (/Library/Bamboo/home/xml-data/build-dir/MAC-CLI-JOB1/Client/Mac/daemon/../../../Shared/Common/LogMsg.cpp:735)
1346811873  @ 2957045760: DumpStack: stack trace not available
1346811873  ! 2957045760: Internal program error: ASSERT "LogFile.SetFilePointer(dwBufferPosition)" (/Library/Bamboo/home/xml-data/build-dir/MAC-CLI-JOB1/Client/Mac/daemon/../../../Shared/Common/LogMsg.cpp:1255)
1346811903  = 19:25:03

This does not inspire confidence.

Issue 4: Delaying backup due to zero length file modified within the last minute

Carbonite says that it’s “delaying backup due to zero length file modified within the last minute” – the issue is that these files are zero-length but they have not been modified within the last minute. For example:

1347897240  # 2956513280: Delaying backup due to zero length file modified within the last minute: "/Volumes/Momentus/Users/marc/Library/Preferences/MaxBack .mxbk".
1347897240  # 2956513280: Delaying backup due to zero length file modified within the last minute: "/Volumes/Momentus/Users/marc/Dropbox/Camera Uploads/Icon ".
1347897240  # 2956513280: Delaying backup due to zero length file modified within the last minute: "/Volumes/Momentus/Users/marc/Library/Application Support/Evernote/accounts/Evernote/msabramo/note.index/write.lock".
1347897240  # 2956513280: Delaying backup due to zero length file modified within the last minute: "/Volumes/Momentus/Users/marc/Library/Application Support/Google/Chrome/Default/Extension State/LOCK".

But the apps that write these files are not running and these files have not been modified recently at all.

$ date
Mon Sep 17 09:19:25 PDT 2012

$ ls -l "/Volumes/Momentus/Users/marc/Library/Preferences/MaxBack .mxbk"
-rw-r--r--  1 marc  marc  0 Sep 11 02:40 /Volumes/Momentus/Users/marc/Library/Preferences/MaxBack .mxbk

$ ls -l "/Volumes/Momentus/Users/marc/Dropbox/Camera Uploads/Icon^M" 
-rw-r--r--@ 1 marc  marc  0 Sep 10 23:28 /Volumes/Momentus/Users/marc/Dropbox/Camera Uploads/Icon?

$ ls -l "/Volumes/Momentus/Users/marc/Library/Application Support/Evernote/accounts/Evernote/msabramo/note.index/write.lock"
-rw-------  1 marc  marc  0 Sep 16 22:23 /Volumes/Momentus/Users/marc/Library/Application Support/Evernote/accounts/Evernote/msabramo/note.index/write.lock

$ ls -l "/Volumes/Momentus/Users/marc/Library/Application Support/Google/Chrome/Default/Extension State/LOCK"
-rw-------@ 1 marc  marc  0 Sep 10 06:07 /Volumes/Momentus/Users/marc/Library/Application Support/Google/Chrome/Default/Extension State/LOCK

This may or may not be affecting my backup appreciably, but the issue here is that when I’ve already had some difficulty getting Carbonite to do its backups, then when I look through the logs and notice other thing that seem incorrect, it further erodes my confidence in the product.

Issue 5: Carbonite wasting its time repeatedly checking files and directories that have long been deleted

Carbonite doesn’t log every single file it looks at (Thank goodness! That would be extremely inefficient.), so most folks wouldn’t even notice this one. I only did because my backup was not progressing and I kept seeing messages in the logs saying that Carbonite was waiting because CPU usage was too high, and Carbonite was the only app using a lot of CPU, so I went poking around to see what it was so busy doing.

$ sudo fs_usage | grep '/.*CarboniteDae'

08:33:34  getattrlist       //Users/marc/etsylister/parts>>>>>>>>>>>>>>>                                     0.000038   CarboniteDae
08:33:34  getattrlist       //Users/marc/etsylister/parts>>>>>>>>>>>>>>>                                     0.000007   CarboniteDae
08:33:34  getattrlist       //Users/marc/etsylister/parts>>>>>>>>>>>>>>>                                     0.000008   CarboniteDae

I cut this off at 3 entries, but in reality, I saw this 44 times in one second (and it happened for more than one second, but I stopped counting). This also isn’t the only directory that it’s continuing to check – there are several others.

The fact that an app is repeatedly accessing the same file over and over 44 times per second is concerning in itself. To add fuel to the fire, this directory no longer exists! See, I noticed this message many times in the past and I thought that I could give Carbonite a hand and get it past its compulsive checking by deleting this directory and a bunch of other ones that it was compulsively checking. So maybe a week ago, I went on a rampage and blew away a bunch of directories that Carbonite was obsesssing over that weren’t important to me. Problem is, Carbonite is still checking them! And this is even after I uninstalled Carbonite, blew away all its preferences and support files, rebooted, and reinstalled Carbonite. Either I missed deleting the file on my local filesystem that carries this state, or, more likely, the knowledge of this file is in Carbonite’s servers. Perhaps after some amount of time or some number of failed attempts to access the file (how many?), Carbonite will forget about these files. But in the meantime, I worry that it’s wasting its time checking stuff that’s gone and it could be better spending its time backing up the files that I do have.

Update 2012-09-27

I’ve accumulated the info in this post over the course of the last several weeks. At one point, I did a bunch of fiddling including a disk repair on my startup disk and managed to get Carbonite to make a bunch of progress so that only 70 or so files were pending backup (it’s quite possible that disk errors were confusing Carbonite). Still I wanted them all to be backed up or at least know which files those were that were not being backed up and why. The latest is that I talked to Carbonite support and had a fairly nice and helpful guy connect to my machine remotely and make Carbonite exclude some files that are supposedly problematic (browser caches and the like) and mess around with some Carbonite caches. This didn’t really make Carbonite catch up and back up the remaining 70 files. In fact, over the course of the last few days that number has grown to a little over 300. This suggests to me that Carbonite is having trouble with some of these files and is “stuck” and will likely fall further and further behind but I don’t know which files are the problematic ones and Carbonite support hasn’t yet been able to tell me which files these are.

Most likely, I will let my Carbonite subscription lapse when it comes up for renewal. I might go with CrashPlan, but I think more likely is that I will forego cloud backup services entirely and instead just clone my stuff to hard drives and store a couple in some offsite locations like the homes of friends and family. The knocks against cloud backup:

  • Hard to know whether it’s working – how do I really know which files the provider has and which they don’t?
  • Cloud backup uses a ton of my computer CPU and Internet and network bandwidth for months and months. When I do do backups myself, I kick it off and after a few hours it’s done.
  • When the time comes to restore files, I will have to download a tremendous amount of data or pay over a hundred dollars for them to ship me a hard drive. Even then, the hard drive or files downloaded will just be files; not a bootable image. Conversely if I go to a friend’s house and pick up a hard drive with a clone of my system, I have all of my files fast and I have something I can boot off of.
  • I could save the money on the subscription fee and use it towards my hard drive budget.

What is up with Mail.app and Exchange?

Fired up Mail.app on my work laptop today for the first time in a while.

Outlook 2011, OWA (the Outlook Web interface) and my iPhone all show the same state of my inbox, with a single message in it.

Mail.app shows two messages – the one that the other guys show and one that I filed many hours ago.

Things I tried (all of which failed):

  1. Telling Mail.app to resynchronize
  2. Telling Mail.app to rebuild the mailbox
  3. Restarting Mail.app
  4. Deleting my Exchange account and adding it back (and the rebuilding the mailbox for good measure)
  5. Quitting Mail.app, moving my ~/Library/Mail folder to somewhere else, Start Mail.app, go through the wizard to see up my Exchange account all over again.

Nope. Still shows those blasted two messages. The last one is rather amazing to me. If I moved the folder out of the way, that seems to me like it would be pretty much starting from scratch. If that didn’t work, I can only guess that either the OS is doing some caching that I don’t know about or the message is still on the server and Mail.app is just interpreting the server state didn’t from all the others. Strange.

It still amazes me how much trouble we all have with computers with pretty basic stuff like email, calendars, and addressbooks, and getting it all to sync. I hate crap like this, because it breaks the trust that I have in computers to do the simple stuff for me. But then if I can’t trust it, I don’t know, I might as well go back to pen and paper. Imagine how much time we could free up as a culture if we didn’t have to deal with Exchange, IMAP, ActiveSync, SyncServices, and all of that other crap that sounds nice but then fails in strange ways.

Tips for iPhone with a broken lock button

My iPhone 4 has a broken lock button. This is really annoying, because I can’t just press a button to lock the phone. I found a workaround, which makes it possible (though still clumsy) to lock the phone.

Settings | General | Accessibility | Physical & Motor | AssistiveTouch | On

This adds a small circle area that you can tap on and then it brings up a little popup in which you hit “Device” and then “Lock Screen”. This is still clumsy because it requires multiple taps and also because that little circle is constantly in my way – you can drag it around, but there’s no area of the screen where it’s not annoying some of the time. I have “Triple-click Home” set to AssistiveTouch so I can do a triple click to toggle the dot, but it’s hard to get the device to recognize the triple tap and it tends to be very laggy. Honestly, it’s almost worse than having the dot there all the time.

Another problem that I only recently solved a few days ago is how to take a screenshot on a lock-button-challenged device. On a normal device, you hold down the home button and hit the lock button to take a screenshot. This doesn’t work when your lock button doesn’t work of course. But it turns out that the virtual lock button in AssistiveTouch will emulate a lock button for the purpose of taking a screenshot as well! So to take a screenshot:

  1. Tap the AssistiveTouch dot.
  2. Tap “Device”.
  3. Hold down the Home button while tapping “Lock Screen”.


There is some more info about the AssistiveTouch feature (including a video) at the Assistive Technology Blog.

An unnecessary AppleScript to convert an OmniFocus task into a project

I hacked this up and then discovered via a tweet from Ken Case of the OmniGroup that it’s completely unnecessary, because you can convert a task into a project in OmniFocus simply by using the outlining outdent shortcut of Command-[. I thought I’d post it anyway, in case anyone finds it to be a useful example of scripting OmniFocus (which I found somewhat hard to get started with) and also because I feel bad about wasting time on writing this thing and publishing it somewhere kind of sort of justifies the effort. :-)

Using TextExpander to expand a sequence of OmniFocus tasks: A failed experiment

I recently got turned on to TextExpander by the Mac Power Users podcast.

One of my ideas was to use snippets in OmniFocus to create certain repetitive multi-action sequences. For example, when a project involves emailing someone and then waiting for a reply, it would be nice to type a short abbreviation and then enter a fill-in for the name of the person and then have TextExpander create two actions in OmniFocus; one called “Email ” with a context of “Online” followed by another called “Waiting for reply from ” with a context of “Waiting”. I theorized this should be doable because TextExpander lets you insert key presses like Tab and Enter into snippets.

Well, it didn’t work for me as expected. Strangely, it works with the first action; I get the title and context that I want. For the second action, however, I cannot get it to set the context. No matter how many tabs I insert into my snippet expansion, any text that I try to make it put in the context field of the second task seems to go in the title instead. Strange.

Here is the snippet:

If you get it to work or have any insights, please let me know…

My custom Alfred.app searches

I thought others might find a couple of my custom searches and fallback searches for Alfred.app interesting. When I type some text that doesn’t match anything, here’s what I get:

Marc's Alfred.app custom and fallback searches

Marc’s Alfred.app custom and fallback searches

The “Jira search” entry searches my company’s local Jira server. You can add one for yourself by clicking this link and editing the URL in Alfred Preferences | Features | Web & URL | Custom Searches (this is in Alfred.app version 1.3.1).

The “OF Inbox” entry uses an omnifocus:// URL to send the text to your OmniFocus Inbox. Here’s a link to add this to your Alfred config.