Re: hadoop 2.2.0 HA: standby namenode generate a long list of loading edits
On Wed, Jun 11, 2014 at 8:27 PM, Henry Hung wrote: > @Suresh, > > > > Q1: But is this kind of behavior can cause some problem in fail over > event? I’m afraid that standby namenode will took a long time to be active. > Can you please explain how you arrived at this? > > > Q2: Is there a way to purge the loading edit records? Should I do restart > on standby namenode? > > > Other than showing a long list of loaded edits, there is nothing to be concerned here. I agree that this is confusing and we could change this where we print only last set of loaded edits instead of entire list. > Best regards, > > Henry > > > > *From:* Suresh Srinivas [mailto:sur...@hortonworks.com] > *Sent:* Thursday, June 12, 2014 11:23 AM > *To:* hdfs-u...@hadoop.apache.org > *Subject:* Re: hadoop 2.2.0 HA: standby namenode generate a long list of > loading edits > > > > Henry, > > > > I suspect this is what is happening. On active namenode, oncethe existing > set of editlogs during startup are loaded, it becomes active and from then > it has no need to load any more edits. It only generates edits. On the > other hand, standby namenode not only loads the edits during startup, it > also continuously loads the edits being generated by the active. Hence the > difference. > > > > Regards, > > Suresh > > > > On Wed, Jun 11, 2014 at 7:49 PM, Henry Hung wrote: > > Hi All, > > > > I’m using QJM with 2 namenodes, in the active namenode, the main page’s > loading edits panel only show 10 records, but in standby namenode, the > loading edits panel show a lot more records, never count it, but I think it > has > 100 records. > > Is this a problem? > > > > Here I provide some of the data: > > > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1080&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1361&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1830&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000140&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10001638&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002099&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002359&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000332&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000421&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005210&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005529&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000577&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005831&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&
RE: hadoop 2.2.0 HA: standby namenode generate a long list of loading edits
@Suresh, Q1: But is this kind of behavior can cause some problem in fail over event? I’m afraid that standby namenode will took a long time to be active. Q2: Is there a way to purge the loading edit records? Should I do restart on standby namenode? Best regards, Henry From: Suresh Srinivas [mailto:sur...@hortonworks.com] Sent: Thursday, June 12, 2014 11:23 AM To: hdfs-u...@hadoop.apache.org Subject: Re: hadoop 2.2.0 HA: standby namenode generate a long list of loading edits Henry, I suspect this is what is happening. On active namenode, oncethe existing set of editlogs during startup are loaded, it becomes active and from then it has no need to load any more edits. It only generates edits. On the other hand, standby namenode not only loads the edits during startup, it also continuously loads the edits being generated by the active. Hence the difference. Regards, Suresh On Wed, Jun 11, 2014 at 7:49 PM, Henry Hung mailto:ythu...@winbond.com>> wrote: Hi All, I’m using QJM with 2 namenodes, in the active namenode, the main page’s loading edits panel only show 10 records, but in standby namenode, the loading edits panel show a lot more records, never count it, but I think it has > 100 records. Is this a problem? Here I provide some of the data: http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1080&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1361&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1830&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000140&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10001638&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002099&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002359&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000332&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000421&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005210&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005529&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000577&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005831&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005951&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006089&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006154&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006291&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006482&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec Best regards, Henry The privileged confidential information contained in this email is intended for use only by the addressees a
Re: hadoop 2.2.0 HA: standby namenode generate a long list of loading edits
Henry, I suspect this is what is happening. On active namenode, oncethe existing set of editlogs during startup are loaded, it becomes active and from then it has no need to load any more edits. It only generates edits. On the other hand, standby namenode not only loads the edits during startup, it also continuously loads the edits being generated by the active. Hence the difference. Regards, Suresh On Wed, Jun 11, 2014 at 7:49 PM, Henry Hung wrote: > Hi All, > > > > I’m using QJM with 2 namenodes, in the active namenode, the main page’s > loading edits panel only show 10 records, but in standby namenode, the > loading edits panel show a lot more records, never count it, but I think it > has > 100 records. > > Is this a problem? > > > > Here I provide some of the data: > > > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1080&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1361&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1830&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000140&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10001638&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002099&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002359&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000332&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000421&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005210&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005529&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000577&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005831&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005951&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006089&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006154&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006291&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006482&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e > (0/0) > > 100.00% > > 0sec > > > > > > Best regards, > > Henry > > -- > The privileged confidential information contained in this email is > intended for use only by the addressees as indicated by the original sender > of this email. If you are not the addressee indicated in this email or are > not responsible for delivery of the email to such a person, please kindly > reply to the sender indicating this fact and delete all copies of it from > your computer and network server immediately. Your cooperation is highly > appreciated. It is advised that any unauthorized use of confidential
hadoop 2.2.0 HA: standby namenode generate a long list of loading edits
Hi All, I'm using QJM with 2 namenodes, in the active namenode, the main page's loading edits panel only show 10 records, but in standby namenode, the loading edits panel show a lot more records, never count it, but I think it has > 100 records. Is this a problem? Here I provide some of the data: http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1080&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1361&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1830&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000140&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10001638&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002099&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10002359&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000332&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000421&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005210&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005529&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=1000577&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005831&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10005951&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006089&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006154&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006291&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec http://fchdgw1.ctfab.com:8480/getJournal?jid=hadoop_prod&segmentTxId=10006482&storageInfo=-47%3A1313059004%3A1395811267413%3ACID-9e1b67b3-8190-4652-b34a-210212a50a9e (0/0) 100.00% 0sec Best regards, Henry The privileged confidential information contained in this email is intended for use only by the addressees as indicated by the original sender of this email. If you are not the addressee indicated in this email or are not responsible for delivery of the email to such a person, please kindly reply to the sender indicating this fact and delete all copies of it from your computer and network server immediately. Your cooperation is highly appreciated. It is advised that any unauthorized use of confidential information of Winbond is strictly prohibited; and any information in this email irrelevant to the official business of Winbond shall be deemed as neither given nor endorsed by Winbond.
