Issues with Node Regex

     [
https://issues.apache.org/jira/browse...nels:all-tabpanel
]

viola.lu closed GERONIMO-5341.

Hi,

I am attempting to add a new node to a single node already running. 
I have set the first node not to bootstrap, and the second node to
bootstrap whit the first node as it's seeder. The IP configuration is
OK, the machines can ping each other, the seed machine (or should I say
cassandra running on the seed machine) is listening on the port 7000.
Wen I run my second node I get



INFO 11:44:07,933 Auto DiskAccessMode determined to be standard
INFO 11:44:08,284 Saved Token not found. Using
158934030741300235018786336281007527329
INFO 11:44:08,285 Saved ClusterName not found. Using VMCluster
 INFO 11:44:08,293 Creating new commitlog
segment /var/lib/cassandra/commitlog/CommitLog-1278668648293.log
 INFO 11:44:08,425 LocationInfo has reached its threshold; switching in
a fresh Memtable at
CommitLogContext(file='/var/lib/cassandra/commitlog/CommitLog-1278668648293.log',
position=416)
 INFO 11:44:08,430 Enqueuing flush of Memtable-Locati### @22885256(166
bytes, 4 operations)
 INFO 11:44:08,432 Writing Memtable-Locatio### @22885256(166 bytes, 4
operations)
 INFO 11:44:08,759 Completed
flushing /var/lib/cassandra/data/system/LocationInfo-1-Data.db
 INFO 11:44:08,812 Starting up server gossip
 INFO 11:44:08,863 Joining: getting load information
 INFO 11:44:08,863 Sleeping 90000 ms to wait for load information...
INFO 11:45:38,866 Joining: getting bootstrap token
ERROR 11:45:38,870 Exception encountered during startup.
java.lang.RuntimeException: No other nodes seen!  Unable to bootstrap
	at
org.apache.cassandra.dht.BootStrapper.getBootstrapSource(BootStrapper.java:120)
	at
org.apache.cassandra.dht.BootStrapper.getBalancedToken(BootStrapper.java:102)
	at
org.apache.cassandra.dht.BootStrapper.getBootstrapToken(BootStrapper.java:97)
	at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:357)
	at
org.apache.cassandra.thrift.CassandraDaemon.setup(CassandraDaemon.java:115)
	at
org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:211)
Exception encountered during startup.
java.lang.RuntimeException: No other nodes seen!  Unable to bootstrap
	at
org.apache.cassandra.dht.BootStrapper.getBootstrapSource(BootStrapper.java:120)
	at
org.apache.cassandra.dht.BootStrapper.getBalancedToken(BootStrapper.java:102)
	at
org.apache.cassandra.dht.BootStrapper.getBootstrapToken(BootStrapper.java:97)
	at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:357)
	at
org.apache.cassandra.thrift.CassandraDaemon.setup(CassandraDaemon.java:115)
	at
org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:211)


Any ideas? I have attached the storage-conf.xml of the second node,
because i think that that is the most likely place I could have made a
mistake.

Thanks a lot!

BoriS

All,

 

I am using pig embedded in Java and need to use matches in my pig job.
However when I try to use escape characters in the pig line, the
compiler complains. How do I use complex regex while embedding?

 

Sample code that is throwing errors:

 

myServer.registerQuery("filtered = FILTER firstcut BY dIP matches
'\Q34.21.12.*\E';");

 

error: invalid escape sequence.

 

Thanks,

 

Matt

 

Hi, everyone
    The following rule comes from
rules/base_rules/modsecurity_crs_41_sql_injection_attacks.conf , but I
don't understand what does the regular expression "(?:[\\\(\)\%#]|--)"
mean. What's the meaning of "\%" in a regex?

SecRule MATCHED_VAR "(?:[\\\(\)\%#]|--)"
        
"t:none,setvar:'tx.msg=%{rule.msg}',setvar:tx.sql_injection_score=+%{tx.critical_anomaly_score},setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:tx.%{rule.id}-WEB_ATTACK/SQL_INJECTION-%{matched_var_name}=%{tx.0}"

Well, how do I use the content of a variable in regex?

$username = "user1"
file {  "userdata.tar.bz2":
                source => "puppet://$server/modules/$module/
userdata.tar.bz2",
                ensure => $users ? {
                                /$username/ => absent,
                                default => present,
                        },
}

$users is a custom fact that contains all local users:

users => at avahi bin daemon dnsmasq ftp games haldaemon lp mail
messagebus nobody ntp polkituser postfix pulse root sshd suse uuidd
wwwrun man news uucp puppet user1

When I hardcode "user1" into the regex my test works fine and the file
is removed.

But things like /$variable/ or /\$variable/ or /#{variable}/ just
don't work.
Is it even possible in version 0.25.4?

All,

 

I am using pig embedded in Java and need to use matches in my pig job.
However when I try to use escape characters in the pig line, the
compiler complains. How do I use complex regex while embedding?

 

Sample code that is throwing errors:

 

myServer.registerQuery("filtered = FILTER firstcut BY dIP matches
'\Q34.21.12.*\E';");

 

error: invalid escape sequence.

 

Thanks,

 

Matt

---------- Forwarded message 

Hi  Jesse and All,
I have written some simple benchmarks for harmony regex and find the
performance of harmony is poor compared to RI. For example, Mathcer.find()
only reach 60% of that of RI. I heard Android use icu4jni re-implement
this
module. Since icu4jni use native code I think it may has higher
performance
than harmony. I am trying to use icu4jni as the back-end of harmony regex
but find icu4jni has no functions related to regex operations.
I know there are some android guys in our community. So can anyone tell me
some detail info for android's regex, like if it re-implement the regex
logic using native code by android itself rather than icu4jni and really
get
higher performance compared to harmony regex? Thanks a lot!

Hi all,

I was wondering if it's possible to validate a <html:password> field
on client-side by using a regular expression.
A look at validateMask.js told me that the only field types supported are
'hidden', 'text', 'textarea' and 'file'.

Code:

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                 field.type == 'textarea' ||
                                 field.type == 'file') &&
                 (field.value.length > 0)) {

                if (!jcv_matchPattern(field.value, oMasked[x][2]("mask")))
{
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oMasked[x][1];
                    isValid = false;
                }
            }


Is this the exspected behavior? Is there any reason for not supporting
'password' fields?
If so, how would I validate a password field by using a regex (without
changing the js file on my own :))?

Cheers,


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Email: stephan.### @it.nrw.de<mailto:stephan.k### @it.nrw.de>

Update AWS S3 log format deserializer regex

Hi all,

  I'm newbie in Cassandra, I have a question about which node is
coordinator
node in my cluster.

I have A, B, C, D, E, F and G nodes. if I run a write operation on "A"
node,
and key range between A and B, so the A node is responsible to write the
key
to B, C and D nodes(RF=3) ? and does it mean A node is coordinator node?

Thanks.

Shen

there is a window of time from when a node goes down and when the rest
of the cluster actually realizes that it is down.

what happens to writes during this time frame?  does hinted handoff
record these writes and then "handoff" when the down node returns?  or
does hinted handoff not kick in until the cluster realizes the node is
down?

... is the only way these missed writes are repaired is through read
repair and/or manually kicking off "nodetool repair"?

thx

Hi,

I have a number of nodes that will grow larger than one cluster can 
hold, so I am looking for a way to efficiently stack clusters. One way 
is to have a zookeeper node "symlink" to another cluster.

Has anybody ever done that and some tips, or alternative approaches? 
Currently I use Scala, and traverse zookeeper trees by proper tail 
recursion, so adapting the tail recursion to process "symlinks" would be 
my approach.

Bst, Maarten

4 nodes, RF=2, 1 node down.

How can I get an UnavailableException in that scenario?

- J.

I had a bad manifest at one point which told puppetd to --recurse on a
massive directory that I didn't actually want it to manage.  I reverted
the
config.  Ever since then however, the nodes that once applied that
--recurse
take a much longer time to update themselves.

What I see is this:

debug: Storing state
debug: Stored state in 59.66 seconds

On a fresh node this takes less than five seconds.  While "Storing state"
is
running the puppetd Ruby process is at 100% CPU.

Is there any way I can get the affected nodes to forget about that old
config?  Or is there any way I can get more information about what state
is
being stored to make sure this is the issue?

Ubuntu 9.10/
puppetd --version =>  0.24.8

thanks!
hernan

Hi,

How much data load can a single typical cassandra instance handle?
It seems like we are getting into trouble when one of our node's load
grows
to bigger than 200g. Both read latency and write latency are increasing,
varying from 10 to several thousand milliseconds.
machine config is 16*cpu 32G RAM
Heap size is 10G
Any suggestion of tuning?
Or should I start considering adding more nodes when the data grows to
this
big?

Thanks

I am having a scenario where I have a root node and then there are sub
nodes
getting created under it with each request. Each subnode has certain
properties created as well.

What I am thinking is to handle heavy concurrency is to save the session
on
every addition of the node. That ways any locks on the root node should be
released immediately. 

After that for each subnode there should be seperate nodes to allow
concurrent writes to happen.

Is my understanding correct..

I am using jackrabbit 2.0

Thoughts?

Hi,

What is the correct procedure to create a well balanced cluster (in
terms of key distribution). From what I understand whenever I add a
new node its takes half from its neighbor. How can I make each node to
contain 1/3 of the keys in a 3 node cluster? Thanks.

Do you have to start your xpath expression with "/jcr:root/" to
indicate a path relative to the root of the repository?  Why can't you
simply start with a single slash?

Hi,

i'm trying to lock a node for 30 minutes

lockManager.lock(node.getPath(), false, false, 1800, username);
session.save();
session.logout();

there's no exception
but the node doesn't get locked.


any tip ?